1
|
Aellos F, Grauer JA, Harder KG, Dworan JS, Fabbri G, Cuevas PL, Yuan X, Liu B, Brunski JB, Helms JA. Dynamic analyses of a soft tissue-implant interface: Biological responses to immediate versus delayed dental implants. J Clin Periodontol 2024. [PMID: 38708491 DOI: 10.1111/jcpe.13980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/16/2024] [Accepted: 03/10/2024] [Indexed: 05/07/2024]
Abstract
AIM To qualitatively and quantitatively evaluate the formation and maturation of peri-implant soft tissues around 'immediate' and 'delayed' implants. MATERIALS AND METHODS Miniaturized titanium implants were placed in either maxillary first molar (mxM1) fresh extraction sockets or healed mxM1 sites in mice. Peri-implant soft tissues were evaluated at multiple timepoints to assess the molecular mechanisms of attachment and the efficacy of the soft tissue as a barrier. A healthy junctional epithelium (JE) served as positive control. RESULTS No differences were observed in the rate of soft-tissue integration of immediate versus delayed implants; however, overall, mucosal integration took at least twice as long as osseointegration in this model. Qualitative assessment of Vimentin expression over the time course of soft-tissue integration indicated an initially disorganized peri-implant connective tissue envelope that gradually matured with time. Quantitative analyses showed significantly less total collagen in peri-implant connective tissues compared to connective tissue around teeth around implants. Quantitative analyses also showed a gradual increase in expression of hemidesmosomal attachment proteins in the peri-implant epithelium (PIE), which was accompanied by a significant inflammatory marker reduction. CONCLUSIONS Within the timeframe examined, quantitative analyses showed that connective tissue maturation never reached that observed around teeth. Hemidesmosomal attachment protein expression levels were also significantly reduced compared to those in an intact JE, although quantitative analyses indicated that macrophage density in the peri-implant environment was reduced over time, suggesting an improvement in PIE barrier functions. Perhaps most unexpectedly, maturation of the peri-implant soft tissues was a significantly slower process than osseointegration.
Collapse
Affiliation(s)
- Fabiana Aellos
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Joseph A Grauer
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Dr. Gerald Niznick College of Dentistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kasidy G Harder
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Julia S Dworan
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
- Department of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria
| | - Giacomo Fabbri
- Private Practice, Ban Mancini Fabbri Dental Clinic, Cattolica, Italy
| | - Pedro L Cuevas
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Xue Yuan
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Indiana University, Indianapolis, Indiana, USA
| | - Bo Liu
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - John B Brunski
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| | - Jill A Helms
- Department of Surgery, Stanford University School of Medicine, Stanford, California, USA
| |
Collapse
|
2
|
Areid N, Abushahba F, Riivari S, Närhi T. Effect of TiO 2 Abutment Coatings on Peri-Implant Soft Tissue Behavior: A Systematic Review of In Vivo Studies. Int J Dent 2024; 2024:9079673. [PMID: 38533472 PMCID: PMC10965279 DOI: 10.1155/2024/9079673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 02/21/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024] Open
Abstract
Establishing a proper soft tissue adhesion around the implant abutment is essential to prevent microbial invasion, inhibit epithelial downgrowth, and obtain an optimal healing process. This systematic review aims to evaluate the real potential of TiO2 coating on the behavior of peri-implant soft tissue health and maintenance. A specific aim was to evaluate clinically and histologically the effect of TiO2 abutment coating on epithelial and connective tissue attachment. Electronic database searches were conducted from 1990 to 2023 in MEDLINE/PubMed and the Web of Science databases. In total, 15 out of 485 publications were included. Eight studies involved humans, and seven were animal studies. Exposure time ranges from 2 days to 5 years. The peri-implant soft tissue evaluations included clinical assessment (plaque index (PI), peri-implant probing pocket depth (PPD), and bleeding on probing (BoP)), histological as well as histomorphometric analysis. The Office of Health Assessment and Translation (OHAT) Risk of Bias Rating Tool for Human and Animal Studies was used to evaluate the overall quality of the studies included in the review. The results showed some variation but remained within acceptable limits. Within the limitations of this systematic review, the present findings suggest that TiO2 coatings seem to influence soft tissue healing. TiO2-coated abutments with a roughness value between 0.2 and 0.5 μm enhance soft tissue health. Sol-gel-derived TiO2 coatings induced better soft tissue attachment than noncoated machined abutment surfaces. The anodized titanium abutments demonstrate comparable clinical and histological outcomes to conventional machined abutments. However, there was variation among the included studies concerning TiO2 coating characteristics and the measured outcomes used to evaluate the soft tissue response, and therefore, quantitative analysis was not feasible. Long-term in vivo studies with standardized soft tissue analysis and coating surface parameters are necessary before a definitive conclusion can be drawn. OSF Registration No.: 10.17605/OSF.IO/E5RQV.
Collapse
Affiliation(s)
- Nagat Areid
- Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry, University of Turku, Turku FI-20520, Finland
| | - Faleh Abushahba
- Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry, University of Turku, Turku FI-20520, Finland
- Department of Biomaterials Science and Turku Clinical Biomaterial Center-TCBC, Institute of Dentistry, University of Turku, Turku FI-20520, Finland
- Department of Restorative Dentistry and Periodontology, Faculty of Dentistry, Libyan International Medical University (LIMU), Benghazi 339P+62Q, Libya
| | - Sini Riivari
- Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry, University of Turku, Turku FI-20520, Finland
| | - Timo Närhi
- Department of Prosthetic Dentistry and Stomatognathic Physiology, Institute of Dentistry, University of Turku, Turku FI-20520, Finland
- Wellbeing Services County of South-West Finland, Turku FI-20521, Finland
| |
Collapse
|
3
|
Deng Z, Yu L, Kuang Y, Zhou Z, Li X. Highly Ordered Nanotube-Like Microstructure on Titanium Dental Implant Surface Fabricated via Anodization Enhanced Cell Adhesion and Migration of Human Gingival Fibroblasts. Int J Nanomedicine 2024; 19:2469-2485. [PMID: 38476279 PMCID: PMC10929655 DOI: 10.2147/ijn.s448743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/01/2024] [Indexed: 03/14/2024] Open
Abstract
Background Titanium (Ti) surface with nanotubes array via anodization has been used in dental implants to enhance bone regeneration but little research was carried out to evaluate whether the presence of highly ordered or disorderly distributed nanotubes array on titanium surface would have an effect on cell behaviors of gingival fibroblasts. Methods The present study fabricated nanotubes arrays with varied topography under different constant voltage of electrochemical anodization in fluorine-containing electrolyte. Human gingival fibroblasts (HGFs) from extracted third molar were harvested and co-cultured with titanium disks with different nanotubes topography. Then cell behaviors of gingival fibroblasts including cell proliferation, adhesive morphology and cell migration were estimated to investigate the influence of titanium nanotubes on cell biology. Besides, gene and protein expression of adhesion molecule (integrin β1/β4/α6, fibronectin, intracellular adhesion molecule-1 and collagen type I) were detected to evaluate the influence of different surfaces on cell adhesion. Results Highly ordered arrays of nanotubes with pore diameter of 60 nm and 100 nm were fabricated under 30 and 40 V of anodization (TNT-30 and TNT-40) while disorderedly distributed nanotube arrays formed on the titanium surface under 50 V of anodization (TNT-50). Our results demonstrated that compared with raw titanium surface and disorderly nanotubes, surface with orderly nanotubes array increased cell area and aspect ratio, as well as cell migration ability in the early phase of cell adhesion (p<0.05). Besides, compared with raw titanium surface, gene and protein expression of adhesion molecules were upregulated in nanotubes groups to different extents, no matter whether in an orderly or disorderly array. Conclusion Within the limitations of our study, we conclude that compared with raw titanium surface, the presence of nanotubes array on titanium surface could enhance cells adhesion and cell migration in the early phase. And compared with disorderly distributed nanotubes, highly ordered nanotubes array might provide a much more favorable surface for gingival fibroblasts to achieve a tight adhesion on the materials.
Collapse
Affiliation(s)
- Zhaoming Deng
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
| | - Lerong Yu
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
| | - Yishen Kuang
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
| | - Ziyao Zhou
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
- Guangdong Provincial Key Laboratory of Biomedical Imaging, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
| | - Xiangwei Li
- Department of Stomatology, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai City, 519000, People’s Republic of China
| |
Collapse
|
4
|
Cai R, Liu Y, Wang X, Wei H, Wang J, Cao Y, Lei J, Li D. Influences of standardized clinical probing on peri-implant soft tissue seal in a situation of peri-implant mucositis: A histomorphometric study in dogs. J Periodontol 2024; 95:233-243. [PMID: 37515595 DOI: 10.1002/jper.23-0167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Abstract
BACKGROUND Clinical probing is commonly recommended to evaluate peri-implant conditions. In a situation of peri-implant mucositis or peri-implantitis, the peri-implant seal healing from the disruption of soft tissue caused by probing has not yet been studied. This study aimed to investigate soft tissue healing after standardized clinical probing around osseointegrated implants with peri-implant mucositis in a dog model. METHODS Three transmucosal implants in each hemi-mandible of six dogs randomly assigned to the peri-implant healthy group or peri-implant mucositis group were probed randomly in the mesial or distal site as probing groups (PH or PM), the cross-sectional opposite sites as unprobed control groups. Histomorphometric measurements of implant shoulder (IS)-most coronal level of alveolar bone contact to the implant surface (BCI), apical termination of the junctional epithelium (aJE)-BCI, mucosal margin (MM)-BCI, and MM-aJE were performed at 1 day, 1 week, and 2 weeks after probing. Apoptosis, proliferation, proinflammatory cytokines, and matrix metalloproteinases (MMPs) of peri-implant soft tissue were estimated by immunofluorescent analysis. RESULTS In the PM group, apical migration of junctional epithelium was revealed by significantly decreased aJE-BCI from 1 day to 2 weeks in comparison to unprobed sites (p < 0.05), while no significant differences were found in the PH group. Immunofluorescent analysis showed higher levels of interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α), MMP-1, and MMP-8, together with exaggerated apoptosis and proliferation of peri-implant soft tissue in the PM group. CONCLUSION Within the limitations, standardized clinical probing might lead to apical migration of the junctional epithelium in a situation of peri-implant mucositis.
Collapse
Affiliation(s)
- Rong Cai
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yi Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xinge Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Hongbo Wei
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jin Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yanze Cao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jiaqi Lei
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dehua Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| |
Collapse
|
5
|
Park JY, Kwon YH, Song YW, Cha JK, Jung UW, Thoma D, Jung R. Is transmucosal healing of an implant as effective as submerged healing when simultaneous guided bone regeneration is performed? A preclinical study. J Clin Periodontol 2024; 51:330-337. [PMID: 38087817 DOI: 10.1111/jcpe.13913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/15/2023] [Accepted: 11/16/2023] [Indexed: 02/17/2024]
Abstract
AIM To investigate whether transmucosal healing is as effective as submerged healing in terms of buccal bone regeneration when guided bone regeneration (GBR) is performed simultaneously with implant placement. MATERIALS AND METHODS In six dogs, buccal dehiscence defects were created in the edentulous mandibular ridge, sized 5 × 5 × 3 mm (length × height × depth). In each defect, a bone-level implant was placed, and four experimental groups were randomly assigned as follows: (i) transmucosal healing with GBR (T-GBR), (ii) transmucosal healing without GBR (T-control), (iii) submerged healing with GBR (S-GBR) and (iv) submerged healing without GBR (S-control). Data analyses were based on histological slides 5 months after implant placement. RESULTS The T-GBR group showed significant differences compared to the control groups regarding defect height resolution, buccal bone thickness and mineralized tissue area (p < .05), but showed no significant differences when compared with the S-GBR group (p > .05). CONCLUSIONS The mode of healing (transmucosal vs. submerged) does not influence bone regeneration at implant sites. The clinician may therefore choose the approach based on further clinical and patient-specific parameters.
Collapse
Affiliation(s)
- Jin-Young Park
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, South Korea
| | - Yoon-Hee Kwon
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Young Woo Song
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Jae-Kook Cha
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
- Innovation Research and Support Center for Dental Science, Yonsei University Dental Hospital, Seoul, South Korea
| | - Ui-Won Jung
- Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Daniel Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - Ronald Jung
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| |
Collapse
|
6
|
Carvalhaes JM, Ponzoni D, Tonini KR, de Carvalho PSP. Clinical study on the association between keratinized mucosa and peri-implant health when external hexagon implants are installed in the posterior region of the maxilla and mandible: a cohort study. Int J Oral Maxillofac Surg 2024; 53:231-238. [PMID: 37468344 DOI: 10.1016/j.ijom.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023]
Abstract
This study evaluated the association between keratinized mucosa (KM) and peri-implant health of external hexagon implants in the posterior region in 84 patients with 242 implants. Modified plaque index (MPI), modified sulcular bleeding index (MSBI), probing depth (PD), keratinized mucosa (KM) width, and peri-implant bone loss were evaluated. The implants were divided according to the KM: (1) absence of KM, (2) KM width >0 and <2 mm, and (3) KM width ≥2 mm. Of the 242 implants evaluated, 63 (26.0%) had no KM band, 56 (23.1%) had KM width <2 mm, and 123 (50.8%) had KM width ≥2 mm. One hundred and sixty-seven (69.0%) were used in multiple unit restorations and 75 (31.0%) in single tooth restorations; 66.9% were placed in the mandible and 33.1% in the maxilla. For single tooth and multiple unit implant restorations, MPI (P=0.069 and P=0.387, respectively), MSBI (P=0.695 and P=0.947, respectively), PD (P=0.270 and P=0.258, respectively), and mesial bone loss (P=0.121 and P=0.239, respectively) were not affected by the KM width. On the distal surface, bone loss was influenced by the absence of KM when single tooth implant restorations were used (P=0.032). No association was found between KM width and the peri-implant tissue health.
Collapse
Affiliation(s)
- J M Carvalhaes
- Brazilian Association of Dentistry, Maceió, Alagoas, Brazil
| | - D Ponzoni
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil.
| | - K R Tonini
- Department of Diagnosis and Surgery, São Paulo State University (UNESP), School of Dentistry, Araçatuba, São Paulo, Brazil
| | - P S P de Carvalho
- Bauru School of Dentistry, University of São Paulo - USP, Bauru, São Paulo, Brazil
| |
Collapse
|
7
|
Belloni A, Argentieri G, Orilisi G, Notarstefano V, Giorgini E, D'Addazio G, Orsini G, Caputi S, Sinjari B. New insights on collagen structural organization and spatial distribution around dental implants: a comparison between machined and laser-treated surfaces. J Transl Med 2024; 22:120. [PMID: 38297308 PMCID: PMC10829267 DOI: 10.1186/s12967-024-04906-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 01/18/2024] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND One of the main factors for the osseointegration of dental implants is the development of an adequate soft tissue barrier, mainly composed by collagen, which protects the implant from bacterial development. The structural features of the peri-implant collagen are influenced by the implant components and, in particular, by the type of the surface. In the clinical practice, healing abutments are characterized by smooth surfaces, named machined. Recently, a new laser technique, Synthegra, has been developed to obtain a topography-controlled surface with micrometric regular pores that seems reducing the risk of peri-implantitis. Based on this background, this study aims investigating the structural organization and spatial distribution of collagen surrounding healing abutments characterized by laser-treated and machined surfaces. METHODS Gingiva portions surrounding custom-made healing abutments (HA), characterized by alternated laser-treated and machined surfaces, were collected and analyzed by combining Fourier Transform InfraRed Imaging (FTIRI) spectroscopy, a non-invasive and high-resolution bidimensional analytical technique, with histological and multivariate analyses. RESULTS Masson's trichrome staining, specific for collagen, highlighted a massive presence of collagen in all the analyzed samples, evidencing a surface-related spatial distribution. The nature of collagen, investigated by the FTIRI spectroscopy, appeared more abundant close to the laser-treated surface, with a perpendicular disposition of the bundles respect to the HA; conversely, a parallel distribution was observed around the machined surface. A different secondary structure was also found, with a higher amount of triple helices and a lower quantity of random coils in collagen close to the laser treated surfaces. CONCLUSIONS FTIRI spectroscopy demonstrates that the use of a laser treated transmucosal surface can improve the morphological organization of the peri-implant collagen, which presents a distribution more similar to that of natural teeth. TRIAL REGISTRATION This trial is registered with ClinicalTrials.gov Identifier: (Registration Number: NCT05754970). Registered 06/03/2023, retrospectively registered, https://clinicaltrials.gov/show/NCT05754970 .
Collapse
Affiliation(s)
- Alessia Belloni
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Giulio Argentieri
- Electron Microscopy Laboratory, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Giulia Orilisi
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy
| | - Valentina Notarstefano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Elisabetta Giorgini
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Gianmaria D'Addazio
- Electron Microscopy Laboratory, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Giovanna Orsini
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, Ancona, Italy.
| | - Sergio Caputi
- Electron Microscopy Laboratory, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Bruna Sinjari
- Electron Microscopy Laboratory, Department of Innovative Technologies in Medicine and Dentistry, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| |
Collapse
|
8
|
Chan MH, Kang J. Diagnosis and Treatment of Periimplant Mucositis and Periimplantitis: An Overview and Related Controversial Issues. Dent Clin North Am 2024; 68:167-202. [PMID: 37951632 DOI: 10.1016/j.cden.2023.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Periimplant mucositis and periimplantitis are common complications of dental implant. This article provides a comprehensive overview of the 2017 World Workshop's new definition, clinical and radiographic presentation, pathogenesis, risk factors, and classification of periimplant diseases. Also, the authors discuss various types of instruments, materials, and techniques commonly used for treatment of nonsurgical and surgical periimplantitis. Lastly, the authors include some controversial topics surrounding this subject.
Collapse
Affiliation(s)
- Michael H Chan
- Oral & Maxillofacial Surgery, Department of Veterans Affairs, New York Harbor Healthcare System (Brooklyn Campus), 800 Poly Place (Bk-160), Brooklyn, NY 11209, USA; Oral & Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, The Brooklyn Hospital Center, 121 DeKalb Avenue (Box-187), Brooklyn, NY 11201, USA.
| | - Joseph Kang
- Oral & Maxillofacial Surgery, Department of Oral and Maxillofacial Surgery, The Brooklyn Hospital Center, 121 DeKalb Avenue (Box-187), Brooklyn, NY 11201, USA
| |
Collapse
|
9
|
Li D, Tan X, Zheng L, Tang H, Hu S, Zhai Q, Jing X, Liang P, Zhang Y, He Q, Jian G, Fan D, Ji P, Chen T, Zhang H. A Dual-Antioxidative Coating on Transmucosal Component of Implant to Repair Connective Tissue Barrier for Treatment of Peri-Implantitis. Adv Healthc Mater 2023; 12:e2301733. [PMID: 37660274 DOI: 10.1002/adhm.202301733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/10/2023] [Indexed: 09/04/2023]
Abstract
Since the microgap between implant and surrounding connective tissue creates the pass for pathogen invasion, sustained pathological stimuli can accelerate macrophage-mediated inflammation, therefore affecting peri-implant tissue regeneration and aggravate peri-implantitis. As the transmucosal component of implant, the abutment therefore needs to be biofunctionalized to repair the gingival barrier. Here, a mussel-bioinspired implant abutment coating containing tannic acid (TA), cerium and minocycline (TA-Ce-Mino) is reported. TA provides pyrogallol and catechol groups to promote cell adherence. Besides, Ce3+ /Ce4+ conversion exhibits enzyme-mimetic activity to remove reactive oxygen species while generating O2 , therefore promoting anti-inflammatory M2 macrophage polarization to help create a regenerative environment. Minocycline is involved on the TA surface to create local drug storage for responsive antibiosis. Moreover, the underlying therapeutic mechanism is revealed whereby the coating exhibits exogenous antioxidation from the inherent properties of Ce and TA and endogenous antioxidation through mitochondrial homeostasis maintenance and antioxidases promotion. In addition, it stimulates integrin to activate PI3K/Akt and RhoA/ROCK pathways to enhance VEGF-mediated angiogenesis and tissue regeneration. Combining the antibiosis and multidimensional orchestration, TA-Ce-Mino repairs soft tissue barriers and effector cell differentiation, thereby isolating the immune microenvironment from pathogen invasion. Consequently, this study provides critical insight into the design and biological mechanism of abutment surface modification to prevent peri-implantitis.
Collapse
Affiliation(s)
- Dize Li
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Xi Tan
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Liwen Zheng
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Han Tang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Shanshan Hu
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Qiming Zhai
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Xuan Jing
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, P. R. China
| | - Panpan Liang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Yuxin Zhang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Qingqing He
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Guangyu Jian
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Dongqi Fan
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Ping Ji
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Tao Chen
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
| | - Hongmei Zhang
- Stomatological Hospital of Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing Medical University, Chongqing, 401147, P. R. China
- Molecular Oncology Laboratory, Department of Orthopedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, 60637, USA
| |
Collapse
|
10
|
Liu Z, Du Y, Xu S, Li M, Lu X, Tian G, Ye J, Zhao B, Wei P, Wang Y. Histatin 1-modified SIS hydrogels enhance the sealing of peri-implant mucosa to prevent peri-implantitis. iScience 2023; 26:108212. [PMID: 37965149 PMCID: PMC10641262 DOI: 10.1016/j.isci.2023.108212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 09/15/2023] [Accepted: 10/11/2023] [Indexed: 11/16/2023] Open
Abstract
Dental implants make it possible to replace teeth in more sophisticated ways. Nevertheless, peri-implantitis is one of the leading causes of implant failure, which can be avoided with proper soft tissue sealing. The aim of this study was to achieve the promotion of the synthesis of peri-implant epithelial hemidesmosome through Histatin 1 and porcine small intestinal submucosa (SIS) hydrogel to form a good peri-implant seal. The results show that hydrogel can improve the biological barrier function around implants by combining antibacterial, promoting soft tissue healing and promoting epithelial bonding. This means that the morphology and anti-infection ability of soft tissue are enhanced, which ensures the long-term stability of the implant.SIS-Hst1 hydrogel has certain clinical application in the prevention and early treatment of peri-implantitis. In conclusion, Hst1-SIS hydrogel, as a local administration system, provides experimental evidence for the prevention of peri-implant disease.
Collapse
Affiliation(s)
- Zihao Liu
- Zhongnuo Dental Hospital, Tianjin Nankai District, Tianjin 300101, China
| | - Yaqi Du
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| | - Shendan Xu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| | - Minting Li
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| | - Xuemei Lu
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| | - Guangjie Tian
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| | - Jing Ye
- Department of Stomatology, Tianjin Hospital, Tianjin 300211, China
| | - Bo Zhao
- Beijing Biosis Healing Biological Technology Co., Ltd., Beijing 102600, China
| | - Pengfei Wei
- Beijing Biosis Healing Biological Technology Co., Ltd., Beijing 102600, China
| | - Yonglan Wang
- School and Hospital of Stomatology, Tianjin Medical University, Tianjin 30070, China
| |
Collapse
|
11
|
Chen M, Ren M, Shi Y, Liu X, Wei H. State-of-the-art polyetheretherketone three-dimensional printing and multifunctional modification for dental implants. Front Bioeng Biotechnol 2023; 11:1271629. [PMID: 37929192 PMCID: PMC10621213 DOI: 10.3389/fbioe.2023.1271629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/05/2023] [Indexed: 11/07/2023] Open
Abstract
Polyetheretherketone (PEEK) is a high-performance thermoplastic polymer with an elastic modulus close to that of the jawbone. PEEK has the potential to become a new dental implant material for special patients due to its radiolucency, chemical stability, color similarity to teeth, and low allergy rate. However, the aromatic main chain and lack of surface charge and chemical functional groups make PEEK hydrophobic and biologically inert, which hinders subsequent protein adsorption and osteoblast adhesion and differentiation. This will be detrimental to the deposition and mineralization of apatite on the surface of PEEK and limit its clinical application. Researchers have explored different modification methods to effectively improve the biomechanical, antibacterial, immunomodulatory, angiogenic, antioxidative, osteogenic and anti-osteoclastogenic, and soft tissue adhesion properties. This review comprehensively summarizes the latest research progress in material property advantages, three-dimensional printing synthesis, and functional modification of PEEK in the fields of implant dentistry and provides solutions for existing difficulties. We confirm the broad prospects of PEEK as a dental implant material to promote the clinical conversion of PEEK-based dental implants.
Collapse
Affiliation(s)
- Meiqing Chen
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Mei Ren
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yingqi Shi
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Xiuyu Liu
- Hospital of Stomatogy, Jilin University, Changchun, China
| | - Hongtao Wei
- Department of Stomatology, China-Japan Union Hospital of Jilin University, Changchun, China
| |
Collapse
|
12
|
Kunrath MF, Gerhardt MDN. Trans-mucosal platforms for dental implants: Strategies to induce muco-integration and shield peri-implant diseases. Dent Mater 2023; 39:846-859. [PMID: 37537095 DOI: 10.1016/j.dental.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
OBJECTIVES Trans-mucosal platforms connecting the bone-anchored implants to the prosthetic teeth are essential for the success of oral rehabilitation in implant dentistry. This region promotes a challenging environment for the successfulness of dental components due to the transitional characteristics between soft and hard tissues, the presence of bacteria, and mechanical forces. This review explored the most current approaches to modify trans-mucosal components in terms of macro-design and surface properties. METHODS This critical review article revised intensely the literature until July 2023 to demonstrate, discuss, and summarize the current knowledge about marketable and innovative trans-mucosal components for dental implants. RESULTS A large number of dental implant brands have promoted the development of several implant-abutment designs in the clinical market. The progress of abutment designs shows an optimistic reduction of bacteria colonization underlying the implant-abutment gap, although, not completely inhibited. Fundamental and preclinical studies have demonstrated promising outcomes for altered-surface properties targeting antibacterial properties and soft tissue sealing. Nanotopographies, biomimetic coatings, and antibiotic-release properties have been shown to be able to modulate, align, orient soft tissue cells, and induce a reduction in biofilm formation, suggesting superior abilities compared to the current trans-mucosal platforms available on the market. SIGNIFICANCE Future clinical implant-abutments show the possibility to reduce peri-implant diseases and fortify soft tissue interaction with the implant-substrate, defending the implant system from bacteria invasion. However, the absence of technologies translated to commercial stages reveals the need for findings to "bridge the gap" between scientific evidences published and applied science in the industry.
Collapse
Affiliation(s)
- Marcel F Kunrath
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, P.O. Box 412, SE 405 30 Göteborg, Sweden; School of Health and Life Sciences, Post-Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil; School of Technology, Post-Graduate Program in Materials Technology and Engineering, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Maurício do N Gerhardt
- School of Health and Life Sciences, Post-Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| |
Collapse
|
13
|
Covani U, Giammarinaro E, Di Pietro N, Boncompagni S, Rastelli G, Romasco T, Velasco-Ortega E, Jimenez-Guerra A, Iezzi G, Piattelli A, Marconcini S. Electron Microscopy (EM) Analysis of Collagen Fibers in the Peri-Implant Soft Tissues around Two Different Abutments. J Funct Biomater 2023; 14:445. [PMID: 37754859 PMCID: PMC10532031 DOI: 10.3390/jfb14090445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
The design of the implant prosthesis-abutment complex appears crucial for shaping healthy and stable peri-implant soft tissues. The aim of the present animal study was to compare two implants with different healing abutment geometries: a concave design (TEST) and a straight one (CTRL). Transmission electron microscopy (TEM) was used to quantify the three-dimensional topography and morphological properties of collagen at nanoscale resolution. 2 swine were included in the experiment and 6 implants per animal were randomly placed in the left or right hemimandible in either the physiologically mature bone present between the lower canine and first premolar or in the mandibular premolar area, within tooth extraction sites. Each CTRL implant was positioned across from its respective TEST implant on the other side of the jaw. After 12 weeks of healing, 8 specimens (4 CTRL and 4 TEST) were retrieved and prepared for histological and TEM analysis. The results showed a significantly higher percentage of area covered by collagen bundles and average bundle size in TEST implants, as well as a significant decrease in the number of longitudinally oriented bundles with respect to CTRL implants, which is potentially due to the larger size of TEST bundles. These data suggest that a concave transmucosal abutment design serves as a scaffold, favoring the deposition and growth of a well-organized peri-implant collagen structure over the implant platform in the early healing phase, also promoting the convergence of collagen fibers toward the abutment collar.
Collapse
Affiliation(s)
- Ugo Covani
- Department of Stomatology, Tuscan Dental Institute, 55041 Lido di Camaiore, Italy; (U.C.); (E.G.); (S.M.)
| | - Enrica Giammarinaro
- Department of Stomatology, Tuscan Dental Institute, 55041 Lido di Camaiore, Italy; (U.C.); (E.G.); (S.M.)
| | - Natalia Di Pietro
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (T.R.); (G.I.)
- Center for Advanced Studies and Technology—CAST, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (S.B.); (G.R.)
| | - Simona Boncompagni
- Center for Advanced Studies and Technology—CAST, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (S.B.); (G.R.)
- Department of Neuroscience, Imaging and Clinical Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Giorgia Rastelli
- Center for Advanced Studies and Technology—CAST, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (S.B.); (G.R.)
- Department of Neuroscience, Imaging and Clinical Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy
| | - Tea Romasco
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (T.R.); (G.I.)
- Center for Advanced Studies and Technology—CAST, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (S.B.); (G.R.)
| | - Eugenio Velasco-Ortega
- Department of Stomatology, Faculty of Dentistry, University of Seville, 41013 Seville, Spain; (E.V.-O.); (A.J.-G.)
| | - Alvaro Jimenez-Guerra
- Department of Stomatology, Faculty of Dentistry, University of Seville, 41013 Seville, Spain; (E.V.-O.); (A.J.-G.)
| | - Giovanna Iezzi
- Department of Medical, Oral and Biotechnological Sciences, “G. d’Annunzio” University of Chieti-Pescara, 66100 Chieti, Italy; (T.R.); (G.I.)
| | - Adriano Piattelli
- School of Dentistry, Saint Camillus International University of Health and Medical Sciences, 00131 Rome, Italy;
- Facultad de Medicina, UCAM Universidad Católica San Antonio de Murcia, 30107 Murcia, Spain
| | - Simone Marconcini
- Department of Stomatology, Tuscan Dental Institute, 55041 Lido di Camaiore, Italy; (U.C.); (E.G.); (S.M.)
| |
Collapse
|
14
|
Baus-Domínguez M, Maza-Solano S, Vázquez-Pachón C, Flores-Cerero M, Torres-Lagares D, Serrera-Figallo MÁ, Macías-García L. Behaviour of the Peri-Implant Soft Tissue with Different Rehabilitation Materials on Implants. Polymers (Basel) 2023; 15:3321. [PMID: 37571215 PMCID: PMC10422441 DOI: 10.3390/polym15153321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
(1) Background: Mucointegration seems to gain interest when talking about success in the maintenance of dental implants. As we well know, collagen fibres cannot be inserted due to the lack of root structure on the implant surface, so the structural integration of peri-implant tissues that provide a firm seal around implants seems to be of interest when it comes to ensuring the survival of dental implants. To achieve a good epithelial barrier, the physicochemical characteristics of the surfaces of the restorative materials are of vital importance; therefore, the objective of this study is to analyse the histological behaviour of the peri-implant soft tissues in three different restorative materials. (2) Methods: Histological analysis of biopsied peri-implant keratinised mucosa, inflammatory epithelium and connective tissue in contact with a reinforced composite (BRILLIANT Crios), a cross-linked polymethylmethacrylate (TELIO CAD), and a hybrid ceramic (Vita Enamic), restored on a customised Atlantis-type abutment (Dentsply Sirona) between 60 and 180 days after restoration. (3) Results: A greater number of cells per mm2 of keratinised epithelium is observed in the reinforced composite, which could indicate greater surface roughness with greater inflammatory response. In this way, the greater number of lymphocytes and the lateral cellular composition of the inflammatory cells confirm the greater inflammatory activity towards that material. The best material to rehabilitate was hybrid ceramic, as it shows a better cellular response. (4) Conclusions: Knowing the limitations of the proposed study, despite the fact that greater inflammation is observed in the reinforced composite relative to the other materials studied, no statistically significant differences were found.
Collapse
Affiliation(s)
- María Baus-Domínguez
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - Serafín Maza-Solano
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - Celia Vázquez-Pachón
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - Marta Flores-Cerero
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - Daniel Torres-Lagares
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - María-Ángeles Serrera-Figallo
- Instituto de Biomedicina de Sevilla, IBiS/Departamento de Estomatología, Facultad de Odontología, Universidad de Sevilla, C/Avicena S/N, 41009 Sevilla, Spain; (M.B.-D.); (S.M.-S.); (C.V.-P.); (M.F.-C.); (D.T.-L.)
| | - Laura Macías-García
- Departamento de Citología e Histología Normal y Patológica, Facultad de Medicina, Universidad de Sevilla, Avda. Sánchez-Pizjuán S/N, 41009 Sevilla, Spain
| |
Collapse
|
15
|
Li D, Yang L, Deng H, Li T, Zhang Z. Optimized titanium dioxide nanotubes for dental implants: Estimation of mechanical properties and effects on the biological behaviors of human gingival fibroblasts and oral bacteria. J Mech Behav Biomed Mater 2023; 144:105988. [PMID: 37406484 DOI: 10.1016/j.jmbbm.2023.105988] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/20/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023]
Abstract
The long-term successes of implant restorations rely on both appropriate osseointegration and robust soft tissue integration (STI). Numerous studies have reported that titanium dioxide nanotube (TNT) arrays formed by electrochemical anodization (EA) can promote early osteogenesis, but the mechanical stability of such modifications is often ignored and remains underexplored. In addition, relatively little research has been done on their effects on soft tissues integration. In this study, we developed mechanically robust TNT arrays using an optimized EA system. Subsequently, we immobilized a peptide, specifically D-amino K122-4, onto the anodized TNTs via polydopamine (PDA) films to enhance their mechanical properties. Surface morphology and composition were characterized by scanning electron microscopy (SEM), atomic force microscopy, and X-ray photoelectron spectroscopy. Mechanical properties, including the elastic modulus and hardness of TNTs modified Ti surfaces, were assessed using the nano-indention test. The adhesive strength of TNTs films to the substrate was measured using the nano scratch test. Furthermore, we evaluated the adhesion, spreading, and proliferation of human gingival fibroblasts (HGFs) and periodontal pathogenic bacteria such as Streptococcus mutans (S.m) and F. nucleatum (F.n) on the surface. Results showed that the elastic modulus, hardness, and adhesive strength of anodized TNTs were significantly enhanced by the incorporation of the D-amino K122-4 peptide. Live-dead staining and SEM observation suggested a decreased surface colonization by both bacterial species. The antibacterial rate of S.m and F. n was 81.5% and 71.7%, respectively, evaluated by colony counting method. Additionally, results of CCK8 assay showed that modified TNTs slightly stimulated HGFs attachment and proliferation while producing enhanced fluorescence of integrin β1 and F-actin, confirmed by laser confocal microscopy observation. Thus, D-amino K122-4 biofunctionalized TNTs present significantly improved mechanical properties, and the mechanically robust structures modulate HGFs proliferation and alignment, resulting in decreased bacteria growth. This novel strategy has the potential to create a surface coating for implants that exhibits superior mechanical robustness and enhanced surface-to-implant interactions.
Collapse
Affiliation(s)
- Dan Li
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, People's Republic of China
| | - Lian Yang
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, People's Republic of China; Department of Stomatology, Electric Power Teaching Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Hongyan Deng
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, People's Republic of China
| | - Tao Li
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, People's Republic of China.
| | - Zhenting Zhang
- Department of Prosthodontics, School of Stomatology, Capital Medical University, Beijing, People's Republic of China.
| |
Collapse
|
16
|
Laleman I, Lambert F. Implant connection and abutment selection as a predisposing and/or precipitating factor for peri-implant diseases: A review. Clin Implant Dent Relat Res 2023; 25:723-733. [PMID: 36825512 DOI: 10.1111/cid.13185] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/17/2023] [Indexed: 02/25/2023]
Abstract
Peri-implant mucosal integration is becoming a critical aspect for long term implant health and can be triggered the selection of implant components. The aim of this review is therefore to investigate the evidence concerning implant connection and abutment characteristics (abutment materials, design, handling) as predisposing or precipitating factor for peri-implant mucositis and peri-implantitis. Although the evidence that these features can directly predispose/precipitate peri-implant diseases is limited, there are -few- studies showing a potential role of the implant connection, trans-mucosal configuration, and handling in the development of early bone loss and/or peri-implantitis. With bone level implants, conical internal connections (with inherent platform switching) might be preferred over internal flat-flat and external connections to decrease the risk of early bone loss and potentially the risk of peri-implant disease. Moreover, there is a trend suggesting moving the prosthetic interface coronally (to the juxta-mucosal level) as soon as possible to reduce the number of disconnections and to limit the risk of cements remnants. This can be achieved by choosing a tissue-level implant or to place a trans-mucosal abutment (one abutment-one time approach) to optimize the peri-implant soft tissue seal. In absence of evidence for the biocompatibility regarding several restorative materials, biocompatible materials such as titanium or zirconia should be preferred in the trans-mucosal portion. Finally, higher implants (≥2mm) with an emergence angle below 30° seem more favourable. It should however be noted that some of this information is solely based on indirect information (such as early bone loss) and more research is needed before making firm recommendations about abutment choice. [Correction added on 13 March 2023, after first online publication: 'longer implants (≥2mm)' was changed to 'higher implants (≥2mm)' in this version.].
Collapse
Affiliation(s)
- Isabelle Laleman
- Department of Periodontology and oro-dental Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), Faculty of Medicine, University of Liège, Liège, Belgium
| | - France Lambert
- Department of Periodontology and oro-dental Surgery, Faculty of Medicine, University of Liège, Liège, Belgium
- Dental Biomaterials Research Unit (d-BRU), Faculty of Medicine, University of Liège, Liège, Belgium
| |
Collapse
|
17
|
Imber JC, Roccuzzo A, Stähli A, Bosshardt DD, Muñoz F, Ramseier CA, Lang NP, Sculean A. Spontaneous regeneration of keratinized tissue at implants and teeth. J Clin Periodontol 2023; 50:1064-1074. [PMID: 37186090 DOI: 10.1111/jcpe.13820] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/17/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023]
Abstract
AIM To investigate the spontaneous regeneration of the implanto-mucosal and dento-gingival unit after complete removal of keratinized tissue (KT). MATERIALS AND METHODS One hemi-mandible per dog (n = 4) was allocated to receive three dental implants (test sites, premolar region), whereas three premolars on the contralateral side were controls. After osseointegration, the entire KT (buccal + lingual) was surgically excised on all test and control sites, leaving the bone exposed. Clinical measurements were performed before excision (T0 ) and after 12 weeks (T1 ). Following healing, the animals were euthanized, and the specimens were histologically processed. Descriptive statistical analyses were performed. RESULTS Clinical measurements revealed that at T1 , on all teeth, a band of KT was spontaneously regenerated (mean width: 2.60 ± 0.66 mm), whereas on implants, KT was detected only occasionally at mesial or distal but not at buccal sites (mean total: 0.35 ± 0.53 mm; p < .0001). Histologically, spontaneous regeneration of the dento-gingival unit was evident, displaying masticatory mucosa. At the implant sites, on the other hand, the implanto-mucosal unit was characterized by a non-keratinized epithelium and elastic fibres, indicating the characteristics encountered in alveolar mucosa. CONCLUSION After excision of KT at implant sites, the spontaneous regeneration of the soft tissue is characterized by a non-keratinized epithelium typical for alveolar mucosa, while at tooth sites the spontaneous regeneration was characterized by soft tissue resembling gingiva.
Collapse
Affiliation(s)
- Jean-Claude Imber
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Andrea Roccuzzo
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Alexandra Stähli
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Dieter D Bosshardt
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Fernando Muñoz
- Department of Veterinary Clinical Sciences, University of Santiago de Compostela, iBonelab SL, Lugo, Spain
| | - Christoph A Ramseier
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Niklaus P Lang
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| |
Collapse
|
18
|
Gulati K, Chopra D, Kocak-Oztug NA, Verron E. Fit and forget: The future of dental implant therapy via nanotechnology. Adv Drug Deliv Rev 2023; 199:114900. [PMID: 37263543 DOI: 10.1016/j.addr.2023.114900] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/11/2023] [Accepted: 05/21/2023] [Indexed: 06/03/2023]
Abstract
Unlike orthopedic implants, dental implants require the orchestration of both osseointegration at the bone-implant interface and soft-tissue integration at the transmucosal region in a complex oral micro-environment with ubiquitous pathogenic bacteria. This represents a very challenging environment for early acceptance and long-term survival of dental implants, especially in compromised patient conditions, including aged, smoking and diabetic patients. Enabling advanced local therapy from the surface of titanium-based dental implants via novel nano-engineering strategies is emerging. This includes anodized nano-engineered implants eluting growth factors, antibiotics, therapeutic nanoparticles and biopolymers to achieve maximum localized therapeutic action. An important criterion is balancing bioactivity enhancement and therapy (like bactericidal efficacy) without causing cytotoxicity. Critical research gaps still need to be addressed to enable the clinical translation of these therapeutic dental implants. This review informs the latest developments, challenges and future directions in this domain to enable the successful fabrication of clinically-translatable therapeutic dental implants that would allow for long-term success, even in compromised patient conditions.
Collapse
Affiliation(s)
- Karan Gulati
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia.
| | - Divya Chopra
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia
| | - Necla Asli Kocak-Oztug
- The University of Queensland, School of Dentistry, Herston, QLD 4006, Australia; Istanbul University, Faculty of Dentistry, Department of Periodontology, 34116 Istanbul, Turkey
| | - Elise Verron
- Nantes Université, CNRS, CEISAM, UMR 6230, 44000 Nantes, France
| |
Collapse
|
19
|
Assery NM, Jurado CA, Assery MK, Afrashtehfar KI. Peri-implantitis and systemic inflammation: A critical update. Saudi Dent J 2023; 35:443-450. [PMID: 37520600 PMCID: PMC10373087 DOI: 10.1016/j.sdentj.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/27/2023] [Accepted: 04/30/2023] [Indexed: 08/01/2023] Open
Abstract
Peri-implantitis is an inflammatory condition induced by bacterial biofilm that affects the soft and hard tissues surrounding dental implants, compromising the success of implant therapy. Recent studies have highlighted the potential links between peri-implant health and systemic inflammation, including uncontrolled diabetes mellitus, psychological stress, cardiovascular disease, obesity, and infectious diseases such as COVID-19. As an inflammatory disease, peri-implantitis may trigger systemic inflammation by elevating circulating levels of pro-inflammatory cytokines, which could have unknown impacts on overall health. While the relationship between periodontal health and systemic conditions is better understood, the association between peri-implant disease and systemic inflammation remains unclear. Therefore, this comprehensive review aims to summarize the most recent evidence on the relationship between peri-implantitis and systemic inflammation, focusing on biological complications, microbiology, and biomarkers. This review aims to enhance our understanding of the links between peri-implantitis and systemic inflammation and promote further research in this field by discussing the latest insights and clinical implications.
Collapse
Affiliation(s)
- Nasser M. Assery
- Department of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY 14642, USA
| | - Carlos A. Jurado
- Department of Prosthodontics, School of Dentistry, Iowa University, Iowa City, IA 52242, USA
| | - Mansour K. Assery
- College of Dentistry, Riyadh Elm University, Riyadh 13244, Saudi Arabia
| | - Kelvin I. Afrashtehfar
- Evidence-Based Practice Unit (EBPU), Clinical Sciences Department, College of Dentistry, Ajman University, PO Box 346, Ajman City, AE, United Arab Emirates
- Department of Reconstructive Dentistry & Gerodontology, School of Dental Medicine, Faculty of Medicine, University of Bern, 3010 Berne, BE, Switzerland
- Division of Periodontology and Peri-implant Diseases, Center of Dental Medicine, University of Zurich, 8032 Zurich, ZH, Switzerland
- Artificial Intelligence Research Center (AIRC), Ajman City, P.O. Box 346, AE, United Arab Emirates
| |
Collapse
|
20
|
Huang C, Miao X, Li J, Liang J, Xu J, Wu Z. Promoted Abutment-Soft Tissue Integration Around Self-Glazed Zirconia Surfaces with Nanotopography Fabricated by Additive 3D Gel Deposition. Int J Nanomedicine 2023; 18:3141-3155. [PMID: 37333732 PMCID: PMC10276606 DOI: 10.2147/ijn.s404047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/01/2023] [Indexed: 06/20/2023] Open
Abstract
Introduction Improving the biological sealing around dental abutments could promote the long-term success of implants. Although titanium abutments have a wide range of clinical applications, they incur esthetic risks due to their color, especially in the esthetic zone. Currently, zirconia has been applied as an esthetic alternative material for implant abutments; however, zirconia is purported to be an inert biomaterial. How to improve the biological activities of zirconia has thus become a popular research topic. In this study, we presented a novel self-glazed zirconia (SZ) surface with nanotopography fabricated by additive 3D gel deposition and investigated its soft tissue integration capability compared to that of clinically used titanium and polished conventional zirconia surfaces. Materials and Methods Three groups of disc samples were prepared for in vitro study and the three groups of abutment samples were prepared for in vivo study. The surface topography, roughness, wettability and chemical composition of the samples were examined. Moreover, we analyzed the effect of the three groups of samples on protein adsorption and on the biological behavior of human gingival keratinocytes (HGKs) and human gingival fibroblasts (HGFs). Furthermore, we conducted an in vivo study in which the bilateral mandibular anterior teeth of rabbits were extracted and replaced with implants and corresponding abutments. Results The surface of SZ showed a unique nanotopography with nm range roughness and a greater ability to absorb protein. The promoted expression of adhesion molecules in both HGKs and HGFs was observed on the SZ surface compared to the surfaces of Ti and PCZ, while the cell viability and proliferation of HGKs and the number of HGFs adhesion were not significant among all groups. In vivo results showed that the SZ abutment formed strong biological sealing at the abutment-soft tissue interface and exhibited markedly more hemidesmosomes when observed with a transmission electron microscope. Conclusion These results demonstrated that the novel SZ surface with nanotopography promoted soft tissue integration, suggesting its promising application as a zirconia surface for the dental abutment.
Collapse
Affiliation(s)
- Chaoyi Huang
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| | - Xinchao Miao
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| | - Jiang Li
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| | - Jieyi Liang
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| | - Junxi Xu
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| | - Zhe Wu
- Department of Prosthodontics, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, People’s Republic of China
- Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou, People’s Republic of China
| |
Collapse
|
21
|
Yan Q, Shi S, Ge Y, Wan S, Li M, Li M. Nanoparticles of Cerium-Doped Zeolitic Imidazolate Framework-8 Promote Soft Tissue Integration by Reprogramming the Metabolic Pathways of Macrophages. ACS Biomater Sci Eng 2023. [PMID: 37290028 DOI: 10.1021/acsbiomaterials.3c00508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Soft tissue integration around the abutment of implants is the basis of long-term retention of implants. Macrophages are an important component involved in the repair of soft tissue due to their crucial role in improving the biological structure of connective tissues by regulating the fiber synthesis, adhesion, and contraction of gingival fibroblasts. Recent studies have illustrated that cerium-doped zeolitic imidazolate framework-8 (Ce@ZIF-8) nanoparticles (NPs) can attenuate periodontitis via both antibacterial and anti-inflammatory effects. However, the effect of Ce@ZIF-8 NPs on soft tissue integration around the abutment is unknown. Herein, we first prepared Ce@ZIF-8 NPs by a one-pot synthesis. Then, we probed the regulatory effect of Ce@ZIF-8 NPs on macrophage polarization, and further experiments were performed to study the changes of fiber synthesis as well as adhesion and contraction of fibroblasts in the M2 macrophage environment stimulated by Ce@ZIF-8 NPs. Strikingly, Ce@ZIF-8 NPs can be internalized by M1 macrophages through macropinocytosis and caveolae-mediated endocytosis in addition to phagocytosis. By catalyzing hydrogen peroxide to produce oxygen, the mitochondrial function was remedied, while hypoxia inducible factor-1α was restrained. Then, macrophages were shifted from the M1 to M2 phenotype via this metabolic reprogramming pathway, provoking soft tissue integration. These results provide innovative insights into facilitating soft tissue integration around implants.
Collapse
Affiliation(s)
- Qiqian Yan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| | - Shanwei Shi
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| | - Yang Ge
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| | - Shuangquan Wan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| | - Mingfei Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| | - Maoquan Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou 510280, China
- Guangdong Academy of Stomatology, Guangzhou 510180, China
| |
Collapse
|
22
|
Tardelli JDC, Bagnato VS, Reis ACD. Bacterial Adhesion Strength on Titanium Surfaces Quantified by Atomic Force Microscopy: A Systematic Review. Antibiotics (Basel) 2023; 12:994. [PMID: 37370313 DOI: 10.3390/antibiotics12060994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 06/29/2023] Open
Abstract
Few studies have been able to elucidate the correlation of factors determining the strength of interaction between bacterial cells and substrate at the molecular level. The aim was to answer the following question: What biophysical factors should be considered when analyzing the bacterial adhesion strength on titanium surfaces and its alloys for implants quantified by atomic force microscopy? This review followed PRISMA. The search strategy was applied in four databases. The selection process was carried out in two stages. The risk of bias was analyzed. One thousand four hundred sixty-three articles were found. After removing the duplicates, 1126 were screened by title and abstract, of which 57 were selected for full reading and 5 were included; 3 had a low risk of bias and 2 moderated risks of bias. (1) The current literature shows the preference of bacteria to adhere to surfaces of the same hydrophilicity. However, this fact was contradicted by this systematic review, which demonstrated that hydrophobic bacteria developed hydrogen bonds and adhered to hydrophilic surfaces; (2) the application of surface treatments that induce the reduction of areas favorable for bacterial adhesion interfere more in the formation of biofilm than surface roughness; and (3) bacterial colonization should be evaluated in time-dependent studies as they develop adaptation mechanisms, related to time, which are obscure in this review.
Collapse
Affiliation(s)
- Juliana Dias Corpa Tardelli
- Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto 14040-904, Brazil
| | - Vanderlei Salvador Bagnato
- Department of Physics and Materials Science, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos 13566-970, Brazil
| | - Andréa Cândido Dos Reis
- Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto 14040-904, Brazil
| |
Collapse
|
23
|
Zadrożny Ł, Górski B, Baldoni E, Lumbau AI, Meloni SM, Pisano M, Tallarico M. Minimally Invasive Treatment of Lateral Incisors with Guided One-Piece or Two-Piece Titanium-Made Narrow Diameter Implants: A Retrospective Comparative Study with Up to Two Years Follow-Up. J Clin Med 2023; 12:jcm12113711. [PMID: 37297907 DOI: 10.3390/jcm12113711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/17/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Restoring teeth with dental implants has become the gold standard in recent years, especially in the esthetic zone. However, limited amount of available bone as well as limited interdental space in the anterior zone may create problems for implant treatment. Narrow diameter implants (NDI) may be a treatment option to resolve the above-mentioned limitations and providing minimally invasive implant therapy without additional regenerative procedures. In this retrospective study, a comparison of clinical and radiographic outcomes between one-piece and two-piece titanium-made NDIs was done with the follow-up of two years after loading. Twenty-three NDI cases were analyzed, 11 in the one-piece implant group (group one) and 12 in the two-piece implant group (group two). The outcomes were implant and prosthetic failures, any complications occurred, peri-implant bone level changes, and as well as the Pink Esthetic score. No implant or prosthetic failures, as well as, no complications were reported at the two-year follow-up examination. At the same time the marginal bone loss was 0.23 ± 0.11 in the group one and 0.18 ± 0.12 in the group two. Difference was not statistically significant (p = 0.3339). The Pink Esthetic Score, recorded two years after definitive loading, was 12.6 ± 0.97 in the group one and 12.2 ± 0.92 in the group two, with no statistically significant difference between groups (p = 0.3554). With the limitations of the present study, including the small sample size and short follow-up, it is possible to conclude that either one and two-piece NDI can be successfully used to restore lateral incisors with comparable results within the two years of follow-up.
Collapse
Affiliation(s)
- Łukasz Zadrożny
- Department of Dental Propaedeutics and Prophylaxis, Medical University of Warsaw, Nowogrodzka 59 St., 02-006 Warsaw, Poland
| | - Bartłomiej Górski
- Department of Periodontology and Oral Mucosa Diseases, Medical University of Warsaw, Binieckiego 6 St., 02-097 Warsaw, Poland
| | - Edoardo Baldoni
- Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07021 Sassari, Italy
| | | | - Silvio Mario Meloni
- Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07021 Sassari, Italy
| | - Milena Pisano
- Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07021 Sassari, Italy
| | - Marco Tallarico
- Department of Medicine, Surgery, and Pharmacy, University of Sassari, 07021 Sassari, Italy
| |
Collapse
|
24
|
Gehrke SA, Scarano A, Cortellari GC, Fernandes GVO, Mesquita AMM, Bianchini MA. Marginal Bone Level and Biomechanical Behavior of Titanium-Indexed Abutment Base of Conical Connection Used for Single Ceramic Crowns on Morse-Taper Implant: A Clinical Retrospective Study. J Funct Biomater 2023; 14:jfb14030128. [PMID: 36976052 PMCID: PMC10057670 DOI: 10.3390/jfb14030128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/20/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
The goal of this retrospective clinical study was to evaluate the behavior of Morse-taper indexed abutments by analyzing the marginal bone level (MBL) after at least 12 months of function. Patients rehabilitated with single ceramic crowns between May 2015 and December 2020 received single Morse-taper connection implants (DuoCone implant) with two-piece straight abutment baseT used for at least 12 months, presenting periapical radiograph immediately after crown installation were enrolled. The position of the rehabilitated tooth and arch (maxilla or mandible), crown installation period, implant dimensions, abutment transmucosal height, installation site (immediate implant placement or healed area), associated with bone regeneration, immediate provisionalization, and complications after installation of the final crown were analyzed. The initial and final MBL was evaluated by comparing the initial and final X-rays. The level of significance was α = 0.05. Seventy-five patients (49 women and 26 men) enrolled had a mean period of evaluation of 22.7 ± 6.2 months. Thirty-one implant-abutment (IA) sets had between 12–18 months, 34 between 19–24 months, and 44 between 25–33 months. Only one patient failed due to an abutment fracture after 25 months of function. Fifty-eight implants were placed in the maxilla (53.2%) and 51 in the mandible (46.8%). Seventy-four implants were installed in healed sites (67.9%), and 35 were in fresh socket sites (32.1%). Thirty-two out of these 35 implants placed in fresh sockets had the gap filled with bone graft particles. Twenty-six implants received immediate provisionalization. The average MBL was −0.67 ± 0.65 mm in mesial and −0.70 ± 0.63 mm in distal (p = 0.5072). The most important finding was the statistically significant difference comparing the values obtained for MBL between the abutments with different transmucosal height portions, which were better for abutments with heights greater than 2.5 mm. Regarding the abutments’ diameter, 58 had 3.5 mm (53.2%) and 51 had 4.5 mm (46.8%). There was no statistical difference between them, with the following means and standard deviation, respectively, −0.57 ± 0.53 mm (mesial) and −0.66 ± 0.50 mm (distal), and −0.78 ± 0.75 mm (mesial) and −0.746 ± 0.76 mm (distal). Regarding the implant dimensions, 24 implants were 3.5 mm (22%), and 85 implants (78%) had 4.0 mm. In length, 51 implants had 9 mm (46.8%), 25 had 11 mm (22.9%), and 33 implants were 13 mm (30.3%). There was no statistical difference between the abutment diameters (p > 0.05). Within the limitations of this study, it was possible to conclude that better behavior and lesser marginal bone loss were observed when using abutment heights greater than 2.5 mm of transmucosal portion and when placed implants with 13 mm length. Furthermore, this type of abutment showed a little incidence of failures within the period analyzed in our study.
Collapse
Affiliation(s)
- Sergio Alexandre Gehrke
- Department of Research, Bioface/PgO/UCAM, Calle Cuareim 1483, Montevideo 11100, Uruguay
- Instituto de Bioingenieria, Universidad Miguel Hernández, Avda. Ferrocarril s/n., 03202 Elche, Spain
- Department of Biotechnology, Universidad Católica de Murcia (UCAM), 30107 Murcia, Spain
- Department of Materials Engineering, Pontificia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, Brazil
- Correspondence: (S.A.G.); (G.V.O.F.); Tel./Fax: +598-29015634 (S.A.G.)
| | - Antonio Scarano
- Department of Research, Bioface/PgO/UCAM, Calle Cuareim 1483, Montevideo 11100, Uruguay
- Department of Innovative Technologies in Medicine & Dentistry, University of Chieti-Pescara, 66100 Chieti, Italy
| | | | - Gustavo Vicentis Oliveira Fernandes
- Periodontics and Oral Medicine Department, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Correspondence: (S.A.G.); (G.V.O.F.); Tel./Fax: +598-29015634 (S.A.G.)
| | | | - Marco Aurélio Bianchini
- Post-Graduate Program in Implant Dentistry (PPGO), Federal University of Santa Catarina (UFSC), Florianópolis 88040-900, Brazil
| |
Collapse
|
25
|
Tavelli L, Zucchelli G, Stefanini M, Rasperini G, Wang HL, Barootchi S. Vertical soft tissue augmentation to treat implant esthetic complications: A prospective clinical and volumetric case series. Clin Implant Dent Relat Res 2023; 25:204-214. [PMID: 36759964 DOI: 10.1111/cid.13188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 12/23/2022] [Accepted: 01/23/2023] [Indexed: 02/11/2023]
Abstract
INTRODUCTION Challenging implant esthetic complications are often characterized by implant malpositioning and interproximal attachment loss of the adjacent teeth. However, limited evidence is available on the treatment of these conditions. The aim of this study was to evaluate the clinical, volumetric, and patient-reported outcome following treatment of peri-implant soft tissue dehiscences (PSTDs) exhibiting interproximal attachment loss on adjacent teeth, performed through vertical soft tissue augmentation with implant submersion. METHODS Ten subjects with isolated PSTD in the anterior maxilla characterized by adjacent dentition exhibiting interproximal attachment loss were consecutively enrolled and treated with horizontal and vertical soft tissue augmentation, involving crown and abutment removal, two connective tissue grafts, and submerge healing. Clinical outcomes of interest included mean PSTD coverage, mean PSTD reduction, clinical attachment level (CAL) gain at the implant and adjacent sites and soft tissue phenotype modifications at 1 year. Optical scanning was used for assessing volumetric changes. Professional assessment of esthetic outcomes was performed using the Implant Dehiscence coverage Esthetic Score (IDES), while patient-reported esthetic assessment involved a 0-10 visual analogue scale. RESULTS The mean PSTD depth reduction and mean PSTD coverage at 1 year were 2.25 mm, and 85.14%, respectively. A mean keratinized tissue width (KTW) gain of 1.15 mm was observed, while the mean gain in mucosal thickness (MT) was 1.58 mm. A mean CAL gain of 1.45 mm was obtained at the interproximal aspect of the adjacent dentition at 1 year. Greater linear dimensional (LD) changes were observed at the midfacial aspect of the implant compared to the interproximal sites. The mean final IDES was 6.90 points, while patient-reported esthetic evaluation was 8.83 points. CONCLUSIONS The present study demonstrated that vertical soft tissue augmentation with a submerged healing is an effective treatment approach for the treatment of challenging PSTDs with adjacent dentition exhibiting interproximal attachment loss. This technique can be effective in resolution of esthetic complications in most cases, providing a substantial gain in interproximal attachment levels at the adjacent dentition.
Collapse
Affiliation(s)
- Lorenzo Tavelli
- Department of Oral Medicine, Infection, and Immunity, Division of Periodontology, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Center for clinical Research and evidence synthesis In oral TissuE RegeneratION (CRITERION), Boston, Massachusetts, USA.,Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Giovanni Zucchelli
- Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Martina Stefanini
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Giulio Rasperini
- Department of Oral Medicine, Infection, and Immunity, Division of Periodontology, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.,IRCCS Foundation Polyclinic Ca' Granda, Milan, Italy
| | - Hom-Lay Wang
- Center for clinical Research and evidence synthesis In oral TissuE RegeneratION (CRITERION), Boston, Massachusetts, USA
| | - Shayan Barootchi
- Center for clinical Research and evidence synthesis In oral TissuE RegeneratION (CRITERION), Boston, Massachusetts, USA.,Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| |
Collapse
|
26
|
Pizarek JA, Fischer NG, Aparicio C. Immunomodulatory IL-23 receptor antagonist peptide nanocoatings for implant soft tissue healing. Dent Mater 2023; 39:204-216. [PMID: 36642687 PMCID: PMC9899321 DOI: 10.1016/j.dental.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Peri-implantitis, caused by an inflammatory response to pathogens, is the leading cause of dental implant failure. Poor soft tissue healing surrounding implants - caused by inadequate surface properties - leads to infection, inflammation, and dysregulated keratinocyte and macrophage function. One activated inflammatory response, active around peri-implantitis compared to healthy sites, is the IL-23/IL-17A cytokine axis. Implant surfaces can be synthesized with peptide nanocoatings to present immunomodulatory motifs to target peri-implant keratinocytes to control macrophage polarization and regulate inflammatory axises toward enhancing soft tissue healing. METHODS We synthesized an IL-23 receptor (IL-23R) noncompetitive antagonist peptide nanocoating using silanization and evaluated keratinocyte secretome changes and macrophage polarization (M1-like "pro-inflammatory" vs. M2-like "pro-regenerative"). RESULTS IL-23R antagonist peptide nanocoatings were successfully synthesized on titanium, to model dental implant surfaces, and compared to nonfunctional nanocoatings and non-coated titanium. IL-23R antagonist nanocoatings significantly decreased keratinocyte IL-23, and downstream IL-17A, expression compared to controls. This peptide noncompetitive antagonistic function was demonstrated under lipopolysaccharide stimulation. Large scale changes in keratinocyte secretome content, toward a pro-regenerative milieu, were observed from keratinocytes cultured on the IL-23R antagonist nanocoatings compared to controls. Conditioned medium collected from keratinocytes cultured on the IL-23R antagonist nanocoatings polarized macrophages toward a M2-like phenotype, based on increased CD163 and CD206 expression and reduced iNOS expression, compared to controls. SIGNIFICANCE Our results support development of IL-23R noncompetitive antagonist nanocoatings to reduce the pro-inflammatory IL-23/17A pathway and augment macrophage polarization toward a pro-regenerative phenotype. Immunomodulatory implant surface engineering may promote soft tissue healing and thereby reduce rates of peri-implantitis.
Collapse
Affiliation(s)
- John A Pizarek
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN 55455, USA; United States Navy Dental Corps, Naval Medical Leader and Professional Development Command, 8955 Wood Road Bethesda, MD 20889, USA
| | - Nicholas G Fischer
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN 55455, USA.
| | - Conrado Aparicio
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN 55455, USA; UIC Barcelona - Universitat Internacional de Catalunya, Josep Trueta s/n, 08195 Sant Cugat del Valles, Barcelona, Spain; IBEC- Institute for Bioengineering of Catalonia, Baldiri Reixac 15-21, 08028 Barcelona, Spain.
| |
Collapse
|
27
|
Guo T, Scimeca JC, Ivanovski S, Verron E, Gulati K. Enhanced Corrosion Resistance and Local Therapy from Nano-Engineered Titanium Dental Implants. Pharmaceutics 2023; 15. [PMID: 36839638 DOI: 10.3390/pharmaceutics15020315] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Titanium is the ideal material for fabricating dental implants with favorable biocompatibility and biomechanics. However, the chemical corrosions arising from interaction with the surrounding tissues and fluids in oral cavity can challenge the integrity of Ti implants and leach Ti ions/nanoparticles, thereby causing cytotoxicity. Various nanoscale surface modifications have been performed to augment the chemical and electrochemical stability of Ti-based dental implants, and this review discusses and details these advances. For instance, depositing nanowires/nanoparticles via alkali-heat treatment and plasma spraying results in the fabrication of a nanostructured layer to reduce chemical corrosion. Further, refining the grain size to nanoscale could enhance Ti implants' mechanical and chemical stability by alleviating the internal strain and establishing a uniform TiO2 layer. More recently, electrochemical anodization (EA) has emerged as a promising method to fabricate controlled TiO2 nanostructures on Ti dental implants. These anodized implants enhance Ti implants' corrosion resistance and bioactivity. A particular focus of this review is to highlight critical advances in anodized Ti implants with nanotubes/nanopores for local drug delivery of potent therapeutics to augment osseo- and soft-tissue integration. This review aims to improve the understanding of novel nano-engineered Ti dental implant modifications, focusing on anodized nanostructures to fabricate the next generation of therapeutic and corrosion-resistant dental implants. The review explores the latest developments, clinical translation challenges, and future directions to assist in developing the next generation of dental implants that will survive long-term in the complex corrosive oral microenvironment.
Collapse
|
28
|
Mancini L, Barootchi S, Thoma DS, Jung RE, Gallucci GO, Wang HL, Tavelli L. The peri-implant mucosa color: A systematic appraisal of methods for its assessment and clinical significance. Clin Implant Dent Relat Res 2023; 25:224-240. [PMID: 36646440 DOI: 10.1111/cid.13180] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/21/2022] [Accepted: 12/28/2022] [Indexed: 01/18/2023]
Abstract
BACKGROUND Peri-implant mucosa color (PMC) seems to be one of the main parameters affecting the esthetic outcome of implant therapy. However, more emphasis should be given to its assessment and reporting. PURPOSE To describe the available evidence on methods to assess and report the color of the peri-implant mucosa (PMC) and the respective clinical relevance. MATERIAL AND METHODS A comprehensive electronic and manual search was performed to identify clinical studies reporting on PMC. RESULTS A total of 121 studies were included. PMC was evaluated at the time of the follow-up visit (chairside) in 45.5% studies. PMC assessment was performed qualitatively, by comparing PMC with adjacent and/or contralateral gingiva (78.6%) or quantitatively, using spectrophotometry (20.7%) or a software on clinical photographs (0.8%). The most performed method to assess PMC was through esthetic indices (76.9%), either at the time of the follow-up visit (chairside) or at later time point using photographs. Quantitative reporting of PMC included averages of points from esthetic indices or color differences to natural gingiva expressed with the CIELAB color system. PMC assessment allowed describing color discrepancies compared to natural gingiva, evaluating color changes over time, and comparing the outcomes of different treatment modalities. PMC assessment through spectrophotometry was additionally utilized to assess the role of mucosal thickness (MT) on PMC. CONCLUSIONS Various methods for PMC assessment and reporting were described, including visual assessment, mainly through esthetic indices, and spectrophotometry. PMC evaluation has allowed to demonstrate the factors affecting the color of the peri-implant soft tissue, such as the type of abutment/restoration, MT, and soft tissue augmentation.
Collapse
Affiliation(s)
- Leonardo Mancini
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.,Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.,Center for Clinical Research and Evidence Synthesis in Oral Tissue Regeneration (CRITERION), Boston, Massachusetts, USA.,Department of Oral Medicine, Infection, and Immunity, Division of Periodontology, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Shayan Barootchi
- Center for Clinical Research and Evidence Synthesis in Oral Tissue Regeneration (CRITERION), Boston, Massachusetts, USA.,Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Daniel S Thoma
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland.,Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea
| | - Ronald E Jung
- Clinic of Reconstructive Dentistry, University of Zurich, Zurich, Switzerland
| | - German O Gallucci
- Department of Restorative Dentistry and Biomaterial Science, Harvard School of Dental Medicine, Boston, Massachusetts, USA
| | - Hom-Lay Wang
- Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| | - Lorenzo Tavelli
- Center for Clinical Research and Evidence Synthesis in Oral Tissue Regeneration (CRITERION), Boston, Massachusetts, USA.,Department of Oral Medicine, Infection, and Immunity, Division of Periodontology, Harvard School of Dental Medicine, Boston, Massachusetts, USA.,Department of Periodontics & Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, Michigan, USA
| |
Collapse
|
29
|
Shi D, Liu X, Li X, Li T, Liu J, Wu L. Yth m(6)A RNA-Binding Protein 1 Regulates Osteogenesis of MC3T3-E1 Cells under Hypoxia via Translational Control of Thrombospondin-1. Int J Mol Sci 2023; 24. [PMID: 36675257 DOI: 10.3390/ijms24021741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/29/2022] [Accepted: 01/06/2023] [Indexed: 01/18/2023] Open
Abstract
Peri-implantitis is a major factor affecting implant prognosis, and the specific anatomy of the peri-implant area makes it more vulnerable to the local hypoxic environment caused by inflammation. N6-methyladenosine (m6A) plays a vital role in a multitude of biological processes, and its main "reader" Yth m6A RNA-binding protein 1 (YTHDF1) is suggested to affect osteogenic differentiation. However, the mechanism underlying the effect of YTHDF1 on osteogenic differentiation under hypoxic conditions remains unclear. To address this question, we examined the expression of YTHDF1 under hypoxia and observed that hypoxia suppressed osteogenic differentiation but promoted the expression of YTHDF1. Then we knocked down YTHDF1 and found decreased levels of osteogenic-related markers, alkaline phosphatase (ALP) activity, and alizarin red staining (ARS) under normoxia or hypoxia treatment. Bioinformatics analysis identified Thrombospondin-1 (THBS1) might be a downstream factor of YTHDF1. The results revealed that YTHDF1 enhanced the stability of THBS1 mRNA, and immunofluorescence assays found co-localization with YTHDF1 and THBS1 under hypoxia. Loss of function studies showed knocking down YTHDF1 or THBS1 exacerbated the osteogenic inhibition caused by hypoxia. All data imply that hypoxia suppresses osteogenic differentiation and promotes the expression of YTHDF1, which translationally regulates THBS1 in an m6A-dependent manner, potentially counteracting hypoxia-induced osteogenic inhibition through the YTHDF1/THBS1 pathway. The results of this study reveal for the first time the molecular mechanism of the regulation of osteogenic differentiation by YTHDF1 under hypoxia and suggest that YTHDF1, together with its downstream factor THBS1, may be critical targets to counteract osteogenic inhibition under hypoxic conditions, providing promising therapeutic strategy for the hypoxia-induced bone loss in peri-implantitis.
Collapse
|
30
|
Chen J, Gai K, He Y, Xu Y, Guo W. Generating bioactive and antiseptic interfaces with nano-silver hydroxyapatite-based coatings by pulsed electrochemical deposition for long-term efficient cervical soft tissue sealing. J Mater Chem B 2023; 11:345-358. [PMID: 36484404 DOI: 10.1039/d2tb02098j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Infections related to osseointegrated implants have sparked the interest in studying titanium modification for long-term effective soft tissue sealing. Constructing a silver (Ag)-hydroxyapatite (HA) coating is regarded as an effective strategy for integrating antibiosis with osteanagenesis; however, the outcome for long-term cervical soft tissue sealing in vivo is compromised. It is challenging to construct an Ag-HA coating for long-term efficient soft tissue integration that instills a maximum antibacterial effect while retaining favorable bioactivity to normal gingival mesenchymal cells in vivo. In this study, we employed gradient concentrations of Ag/CaP by pulsed electrochemical deposition to fabricate optimal Ag-HA nanocoatings. By physicochemical analyses, these uniform coatings were mainly formed with spherical metallic and hydroxyapatite nanoparticles, which facilitated good hydrophilicity, moderate rough surfaces and corrosion protection. Furthermore, the nanocoating of the 1.5Ag/CaP group exhibited superior performances in dental follicle cells' proliferation, osteogenic differentiation and antibacterial properties mainly through direct contact inhibition and partially through sustained silver ion release, which resulted in functional cervical soft tissue sealing in beagles lasting for one year. Our investigations provide a feasible strategy to balance the long-term antibacterial demand and bioactive induction around osseointegrated implants for long-term efficient cervical soft tissue sealing.
Collapse
Affiliation(s)
- Jie Chen
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Kuo Gai
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuanyuan He
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Yuchan Xu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weihua Guo
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China. .,National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Frontier Innovation Center for Dental Medicine Plus, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| |
Collapse
|
31
|
Wang WR, Li J, Gu JT, Hu BW, Qin W, Zhu YN, Guo ZX, Ma YX, Tay F, Jiao K, Niu L. Optimization of Lactoferrin-Derived Amyloid Coating for Enhancing Soft Tissue Seal and Antibacterial Activity of Titanium Implants. Adv Healthc Mater 2023; 12:e2203086. [PMID: 36594680 DOI: 10.1002/adhm.202203086] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/27/2022] [Indexed: 01/04/2023]
Abstract
A poor seal of the titanium implant-soft tissue interface provokes bacterial invasion, aggravates inflammation, and ultimately results in implant failure. To ensure the long-term success of titanium implants, lactoferrin-derived amyloid is coated on the titanium surface to increase the expression of cell integrins and hemidesmosomes, with the goal of promoting soft tissue seal and imparting antibacterial activity to the implants. The lactoferrin-derived amyloid coated titanium structures contain a large number of amino and carboxyl groups on their surfaces, and promote proliferation and adhesion of epithelial cells and fibroblasts via the PI3K/AKT pathway. The amyloid coating also has a strong positive charge and possesses potent antibacterial activities against Staphylococcus aureus and Porphyromonas gingivalis. In a rat immediate implantation model, the amyloid-coated titanium implants form gingival junctional epithelium at the transmucosal region that resembles the junctional epithelium in natural teeth. This provides a strong soft tissue seal to wall off infection. Taken together, lactoferrin-derived amyloid is a dual-function transparent coating that promotes soft tissue seal and possesses antibacterial activity. These unique properties enable the synthesized amyloid to be used as potential biological implant coatings.
Collapse
Affiliation(s)
- Wan-Rong Wang
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Jing Li
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Jun-Ting Gu
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Bo-Wen Hu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Wen Qin
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Yi-Na Zhu
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Zhen-Xing Guo
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Yu-Xuan Ma
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Franklin Tay
- Department of Endodontics, the Dental College of Georgia, Augusta University, Augusta, GA, 30912, USA
| | - Kai Jiao
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| | - Lina Niu
- National Clinical Research Center for Oral Diseases, State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, P. R. China
| |
Collapse
|
32
|
Zhang Z, Ji C, Wang D, Wang M, Song D, Xu X, Zhang D. The burden of diabetes on the soft tissue seal surrounding the dental implants. Front Physiol 2023; 14:1136973. [PMID: 36875028 PMCID: PMC9978121 DOI: 10.3389/fphys.2023.1136973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 02/08/2023] [Indexed: 02/18/2023] Open
Abstract
Soft tissue seal around implant prostheses is considered the primary barrier against adverse external stimuli and is a critical factor in maintaining dental implants' stability. Soft tissue seal is formed mainly by the adhesion of epithelial tissue and fibrous connective tissue to the transmembrane portion of the implant. Type 2 diabetes mellitus (T2DM) is one of the risk factors for peri-implant inflammation, and peri-implant disease may be triggered by dysfunction of the soft tissue barrier around dental implants. This is increasingly considered a promising target for disease treatment and management. However, many studies have demonstrated that pathogenic bacterial infestation, gingival immune inflammation, overactive matrix metalloproteinases (MMPs), impaired wound healing processes and excessive oxidative stress may trigger poor peri-implant soft tissue sealing, which may be more severe in the T2DM state. This article reviews the structure of peri-implant soft tissue seal, peri-implant disease and treatment, and moderating mechanisms of impaired soft tissue seal around implants due to T2DM to inform the development of treatment strategies for dental implants in patients with dental defects.
Collapse
Affiliation(s)
- Zhanwei Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Chonghao Ji
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | | | - Maoshan Wang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Dawei Song
- School of Stomatology, Shandong First Medical University, Shandong Academy of Medical Sciences, Jinan, China
| | - Xin Xu
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| | - Dongjiao Zhang
- Department of Implantology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Provincial Clinical Research Center for Oral, Shandong University , Jinan, China
| |
Collapse
|
33
|
Costa LA, Eiro N, Vaca A, Vizoso FJ. Towards a New Concept of Regenerative Endodontics Based on Mesenchymal Stem Cell-Derived Secretomes Products. Bioengineering (Basel) 2022; 10. [PMID: 36671576 DOI: 10.3390/bioengineering10010004] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
The teeth, made up of hard and soft tissues, represent complex functioning structures of the oral cavity, which are frequently affected by processes that cause structural damage that can lead to their loss. Currently, replacement therapy such as endodontics or implants, restore structural defects but do not perform any biological function, such as restoring blood and nerve supplies. In the search for alternatives to regenerate the dental pulp, two alternative regenerative endodontic procedures (REP) have been proposed: (I) cell-free REP (based in revascularization and homing induction to remaining dental pulp stem cells (DPSC) and even stem cells from apical papilla (SCAP) and (II) cell-based REP (with exogenous cell transplantation). Regarding the last topic, we show several limitations with these procedures and therefore, we propose a novel regenerative approach in order to revitalize the pulp and thus restore homeostatic functions to the dentin-pulp complex. Due to their multifactorial biological effects, the use of mesenchymal stem cells (MSC)-derived secretome from non-dental sources could be considered as inducers of DPSC and SCAP to completely regenerate the dental pulp. In partial pulp damage, appropriate stimulate DPSC by MSC-derived secretome could contribute to formation and also to restore the vasculature and nerves of the dental pulp.
Collapse
|
34
|
Saad A, Penaloza Arias C, Wang M, ElKashty O, Brambilla D, Tamimi F, Cerruti M. Biomimetic Strategy to Enhance Epithelial Cell Viability and Spreading on PEEK Implants. ACS Biomater Sci Eng 2022; 8:5129-5144. [PMID: 36453830 DOI: 10.1021/acsbiomaterials.2c00764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Polyetheretherketone (PEEK) is a biocompatible material widely used in spinal and craniofacial implants, with potential use in percutaneous implants. However, its inertness prevents it from forming a tight seal with the surrounding soft tissue, which can lead to infections and implant failure. Conversely, the surface chemistry of percutaneous organs (i.e., teeth) helps establish a strong interaction with the epithelial cells of the contacting soft tissues, and hence a tight seal, preventing infection. The seal is created by adsorption of basement membrane (BM) proteins, secreted by epithelial cells, onto the percutaneous organ surfaces. Here, we aim to create a tight seal between PEEK and epithelial tissues by mimicking the surface chemistry of teeth. Our hypothesis is that collagen I, the most abundant tooth protein, enables integration between the epithelial tissue and teeth by promoting adsorption of BM proteins. To test this, we immobilized collagen I via EDC/NHS coupling on a carboxylated PEEK surface modified using diazonium chemistry. We used titanium alloy (Ti-6Al-4V) for comparison, as titanium is the most widely used percutaneous biomaterial. Both collagen-modified PEEK and titanium showed a larger adsorption of key BM proteins (laminin, nidogen, and fibronectin) compared to controls. Keratinocyte epithelial cell viability on collagen-modified PEEK was twice that of control PEEK and ∼1.5 times that of control titanium after 3 days of cell seeding. Both keratinocytes and fibroblasts spread more on collagen-modified PEEK and titanium compared to controls. This work introduces a versatile and biomimetic surface modification technique that may enhance PEEK-epithelial tissue sealing with the potential of extending PEEK applications to percutaneous implants, making it competitive with titanium.
Collapse
Affiliation(s)
- Ahmed Saad
- Department of Mining and Materials Engineering, McGill University, MontrealH3A 0C5, Québec, Canada
| | | | - Min Wang
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada
| | - Osama ElKashty
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada.,Department of Oral Pathology, Faculty of Dentistry, Mansoura University, Mansoura35516, Egypt
| | - Davide Brambilla
- Faculty of Pharmacy, Université de Montréal, MontréalH3T 1J4, Québec, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, MontrealH3A 0C5, Québec, Canada.,College of Dental Medicine, Qatar University, University Street, Doha2713, Qatar
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, MontrealH3A 0C5, Québec, Canada
| |
Collapse
|
35
|
Fischer NG, Aparicio C. Junctional epithelium and hemidesmosomes: Tape and rivets for solving the "percutaneous device dilemma" in dental and other permanent implants. Bioact Mater 2022; 18:178-198. [PMID: 35387164 PMCID: PMC8961425 DOI: 10.1016/j.bioactmat.2022.03.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 02/14/2022] [Accepted: 03/12/2022] [Indexed: 02/06/2023] Open
Abstract
The percutaneous device dilemma describes etiological factors, centered around the disrupted epithelial tissue surrounding non-remodelable devices, that contribute to rampant percutaneous device infection. Natural percutaneous organs, in particular their extracellular matrix mediating the "device"/epithelium interface, serve as exquisite examples to inspire longer lasting long-term percutaneous device design. For example, the tooth's imperviousness to infection is mediated by the epithelium directly surrounding it, the junctional epithelium (JE). The hallmark feature of JE is formation of hemidesmosomes, cell/matrix adhesive structures that attach surrounding oral gingiva to the tooth's enamel through a basement membrane. Here, the authors survey the multifaceted functions of the JE, emphasizing the role of the matrix, with a particular focus on hemidesmosomes and their five main components. The authors highlight the known (and unknown) effects dental implant - as a model percutaneous device - placement has on JE regeneration and synthesize this information for application to other percutaneous devices. The authors conclude with a summary of bioengineering strategies aimed at solving the percutaneous device dilemma and invigorating greater collaboration between clinicians, bioengineers, and matrix biologists.
Collapse
Affiliation(s)
- Nicholas G. Fischer
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, 55455, USA
| | - Conrado Aparicio
- MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, University of Minnesota, 16-212 Moos Tower, 515 Delaware St. SE, Minneapolis, MN, 55455, USA
- Division of Basic Research, Faculty of Odontology, UIC Barcelona – Universitat Internacional de Catalunya, C/. Josep Trueta s/n, 08195, Sant Cugat del Valles, Barcelona, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), C/. Baldiri Reixac 10-12, 08028, Barcelona, Spain
| |
Collapse
|
36
|
Galarraga‐Vinueza ME, Tavelli L. Soft tissue features of peri‐implant diseases and related treatment. Clin Implant Dent Relat Res 2022. [PMID: 36444772 DOI: 10.1111/cid.13156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/01/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND The need for soft tissue grafting at implant sites for preventing and treating peri-implant diseases is a currently investigated and debated topic. PURPOSE The aim of this manuscript is to explore the inflammatory mechanisms at the peri-implant soft tissue compartment, to distinguish the structural components of the peri-implant soft tissue phenotype and their role on peri-implant health, and to appraise the clinical indications and expected outcomes of soft tissue augmentation procedures at peri-implant diseased sites. MATERIALS AND METHODS This narrative review depicts the inflammatory biomarkers and mediators in the peri-implant crevicular fluid utilized to diagnose peri-implant disease and that have been shown to be associated with peri-implant soft tissue phenotype modification and disease resolution. The impact of the peri-implant soft tissue phenotype, involving keratinized mucosa (KM) width, attached mucosa (AM), mucosal thickness (MT), and supracrestal tissue height (STH), on peri-implant health, esthetic, patient's comfort and disease prevention are discussed. The manuscript also illustrates the use of ultrasonography for the detection of peri-implant health/disease and the evaluation of the treatment outcomes following surgical therapies. RESULTS Current evidence indicates that soft tissue phenotype modification at implant sites with inadequate KM width, AM and MT can be beneficial for promoting peri-implant health and improving patient's comfort and hygiene procedures. Treatment approaches and outcomes from the available literature on soft tissue phenotype modification in combination with conventional techniques at sites with peri-implant mucositis or peri-implantitis are presented and discussed in detail. CONCLUSIONS Soft tissue grafting can be beneficial in preventing and treating peri-implant diseases. Clinical recommendations based on the disease, soft tissue phenotype characteristics and bone defect morphology are provided for a comprehensive hard- and soft-tissue-oriented treatment of peri-implant disease.
Collapse
Affiliation(s)
- Maria Elisa Galarraga‐Vinueza
- Department of Prosthodontics Tufts University School of Dental Medicine Boston Massachusetts USA
- School of Dentistry Universidad de las Américas (UDLA) Quito Ecuador
| | - Lorenzo Tavelli
- Department of Oral Medicine, Infection, and Immunity, Division of Periodontology Harvard School of Dental Medicine Boston Massachusetts USA
- Center for Clinical Research and Evidence Synthesis in Oral TissuE RegeneratION (CRITERION) Boston Massachusetts USA
- Department of Periodontics and Oral Medicine University of Michigan School of Dentistry Ann Arbor Michigan USA
| |
Collapse
|
37
|
Memè L, Sartini D, Pozzi V, Emanuelli M, Strappa EM, Bittarello P, Bambini F, Gallusi G. Epithelial Biological Response to Machined Titanium vs. PVD Zirconium-Coated Titanium: An In Vitro Study. Materials (Basel) 2022; 15:ma15207250. [PMID: 36295315 PMCID: PMC9610795 DOI: 10.3390/ma15207250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/25/2022] [Accepted: 10/12/2022] [Indexed: 05/28/2023]
Abstract
The aim of this study was to compare the epithelial biological response to machined titanium Ti-6Al-4V grade 5 and titanium Ti-6Al-4V grade 5 coated with zirconia (ZrN) by physical vapor deposition (PVD). Human keratinocytes were cultured in six-well plates. Machined titanium TiAl4V4 grade 5 (T1) and ZrN-coated titanium TiAl4V4 grade 5 (T2) discs were placed in two different wells. The remaining two wells served as control (C). Scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS) were performed to compare the T1 and T2 surfaces. Subsequent analyses were performed to explore the effect of T1 and T2 contact with human keratinocyte HUKE cell lines. Cell viability was evaluated using a trypan blue exclusion test and MTT assay. Cell lysates from C, T1, and T2 were Western blotted to evaluate E-cadherin and Integrin-α6β4 expression. SEM revealed that T2 was smoother and more homogeneous than T1. EDS showed homogeneous and uniform distribution of ZrN coating on T2. Cell viability analyses did not show significant differences between T1 and T2. Furthermore, E-cadherin and Integrin-α6β4 expressions of the epithelial cells cultured in T1 and T2 were similar. Therefore, titanium Ti-6Al-4V grade 5 surfaces coated with ZrN by PVD seem to be similar substrates to the uncoated surfaces for keratinocyte adhesion and proliferation.
Collapse
Affiliation(s)
- Lucia Memè
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Valentina Pozzi
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Enrico M. Strappa
- Department of Health Technologies, IRCCS Ospedale Galeazzi-Sant’Ambrogio, University of Milan, 20157 Milan, Italy
| | | | - Fabrizio Bambini
- Department of Clinical Sciences and Stomatology, Polytechnic University of Marche, 60126 Ancona, Italy
| | - Gianni Gallusi
- Department of Clinical Sciences and Translational Medicine, University Tor Vergata, 00133 Rome, Italy
| |
Collapse
|
38
|
He F, Li J, Wang Y, Li Z, Wang L, Li Y, Chen H, Wang C, Liu B, Ma P, Dong G, Zhou P. Design of Cefotaxime Sodium-Loaded Polydopamine Coatings with Controlled Surface Roughness for Titanium Implants. ACS Biomater Sci Eng 2022; 8:4751-4763. [PMID: 36191062 DOI: 10.1021/acsbiomaterials.2c00702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The success rate of dental implants is limited by peri-implant infection and insufficient osseointegration. Therefore, reducing the occurrence of peri-implantitis and promoting osseointegration are in demand. A roughened surface has commonly been applied to improve the osseointegration of implants, but it will accelerate the attachment of bacteria. We have developed novel antibiotic-decorated titanium (Ti) surfaces by the immobilization of dopamine and cefotaxime sodium (CS) simultaneously. Moreover, the surface roughness of the polydopamine (PDA)/CS coating was controlled by the changes in polymerization times as determined by atomic force microscopy. Then, all antibiotic-grafted Ti surfaces could effectively prevent the adhesion and proliferation of both Escherichia coli and Streptococcus mutans in comparison to the pristine control. For the culture and osteogenic differentiation of human umbilical mesenchymal stem cells (hUMSCs) on the substrate surface, PDA/CS coating with polymerization times less than 30 min showed acceptable biocompatibility, but the upregulation of marker genes and proteins was detected when the polymerization time was more than 30 min. Moreover, the best calcium deposition results were found in the 30 min PDA/CS group with or without the addition of osteogenic factors. Therefore, our PDA/CS coating with a polymerization time of 30 min holds great potential to design dental implants with dual bacteriostatic and osteogenic properties.
Collapse
Affiliation(s)
- Fei He
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China.,Key Laboratory of Mechanics on Disaster and Environment in Western China, Ministry of Education, College of Civil Engineering and Mechanics, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Jing Li
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Yixi Wang
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Zhipeng Li
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Lu Wang
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Yuchen Li
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Huiling Chen
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Chenggang Wang
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Bin Liu
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Peng Ma
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Genxi Dong
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China
| | - Ping Zhou
- School and Hospital of Stomatology, Lanzhou University, No. 222 Tianshui South Road, Chengguan District, Lanzhou 730000, Gansu, P. R. China.,Department of Orthopedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen Street, Lanzhou 730030, Gansu, P. R. China
| |
Collapse
|
39
|
Gehrke P, Riebe O, Fischer C, Weinhold O, Dhom G, Sader R, Weigl P. Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments. J Adv Prosthodont 2022; 14:273-284. [PMID: 36452367 PMCID: PMC9672693 DOI: 10.4047/jap.2022.14.5.273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 09/19/2022] [Accepted: 09/27/2022] [Indexed: 09/22/2023] Open
Abstract
PURPOSE Computer-aided design and manufacturing (CAD-CAM) of implant abutments has been shown to result in surface contamination from site-specific milling and fabrication processes. If not removed, these contaminants can have a potentially adverse effect and may trigger inflammatory responses of the peri-implant tissues. The aim of the present study was to evaluate the bacterial disinfection and cleaning efficacy of ultrasonic reprocessing in approved disinfectants to reduce the microbial load of CAD-CAM abutments. MATERIALS AND METHODS Four different types of custom implant abutments (total N = 32) with eight specimens in each test group (type I to IV) were CAD-CAM manufactured. In two separate contamination experiments, specimens were contaminated with heparinized sheep blood alone and with heparinized sheep blood and the test bacterium Enterococcus faecium. Abutments in the test group were processed according to a three-stage ultrasonic protocol and assessed qualitatively and quantitatively by determination of residual protein. Ultrasonicated specimens contaminated with sheep blood and E. faecium were additionally eluted and the dilutions were incubated on agar plates for seven days. The determined bacterial counts were expressed as colony-forming units (CFU). RESULTS Ultrasonic reprocessing resulted in a substantial decrease in residual bacterial protein to less than 80 µg and a reduction in microbiota of more than 7 log levels of CFU for all abutment types, exceeding the effect required for disinfection. CONCLUSION A three-stage ultrasonic cleaning and disinfection protocol results in effective bacterial decontamination. The procedure is reproducible and complies with the standardized reprocessing and disinfection specifications for one- or two-piece CAD-CAM implant abutments.
Collapse
Affiliation(s)
- Peter Gehrke
- Department of Postgraduate Education, Master of Oral Implantology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe University, Frankfurt, Germany
- Private Practice for Oral Surgery and Implant Dentistry, Ludwigshafen, Germany
| | - Oliver Riebe
- HygCen Germany GmbH, Laboratory, Schwerin, Germany
| | | | - Octavio Weinhold
- Private Practice for Oral Surgery and Implant Dentistry, Ludwigshafen, Germany
| | - Günter Dhom
- Private Practice for Oral Surgery and Implant Dentistry, Ludwigshafen, Germany
| | - Robert Sader
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University Frankfurt, Germany
| | - Paul Weigl
- Department of Prosthodontics and Head of Department of Postgraduate Education, Master of Oral Implantology, Center for Dentistry and Oral Medicine (Carolinum), Johann Wolfgang Goethe University, Frankfurt, Germany
| |
Collapse
|
40
|
Song L, Jiang J, Li J, Zhou C, Chen Y, Lu H, He F. The Characteristics of Microbiome and Cytokines in Healthy Implants and Peri-Implantitis of the Same Individuals. J Clin Med 2022; 11:jcm11195817. [PMID: 36233685 PMCID: PMC9572122 DOI: 10.3390/jcm11195817] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Abstract
AIM To characterize the profile of submucosal microbiome and cytokine levels in peri-implant crevicular fluid (PICF) from clinically healthy implants and peri-implantitis in the same individuals. MATERIAL AND METHODS A total of 170 patients were screened and, finally, 14 patients with at least one healthy implant and one peri-implantitis implant were included. Submucosal microbiota and cytokines from 28 implants were analyzed using 16S rRNA gene sequencing and multifactor assays, respectively. Correlations of clinical indexes and microbiota or cytokines were analyzed using Spearman's correlation coefficient. A random forest classification model was constructed. RESULTS Peri-implantitis sites harbored higher microbial diversity, as well as more Gram-negative bacteria and anaerobic bacteria, compared with healthy implants sites. The genera of Peptostreptococcaceae XIG-1, Treponema, Porphyromonas, and Lachnospiraceae G-8, as well as the cytokines of IL-17A, IL-6, IL-15, G-CSF, RANTES, and IL-1β were significantly higher in peri-implantitis than healthy implants. Furthermore, these genera and cytokines had positive relationships with clinical parameters, including probing depth (PD), bleeding on probing (BOP), and marginal bone loss (MBL). The classification model picked out the top 15 biomarkers, such as IL-17A, IL-6, IL-15, VEGF, IL-1β, Peptostreptococcaceae XIG-1, Haemophilus, and Treponema, and obtained an area under the curve (AUC) of 0.85. CONCLUSIONS There are more pathogenic bacteria and inflammatory cytokines in peri-implantitis sites, and biomarkers could facilitate the diagnosis of peri-implantitis.
Collapse
Affiliation(s)
| | | | | | | | | | - Hongye Lu
- Correspondence: (H.L.); (F.H.); Tel.: +86-0571-8723-9319 (F.H.)
| | - Fuming He
- Correspondence: (H.L.); (F.H.); Tel.: +86-0571-8723-9319 (F.H.)
| |
Collapse
|
41
|
Tallarico M, Zadrożny Ł, Squadrito N, Colella L, Gualandri M, Montanari D, Zibetti G, Santini S, Chromiński W, Baldoni E, Meloni SM, Lumbau AI, Pisano M. Scanning Electron Microscopy Analyses of Dental Implant Abutments Debonded from Monolithic Zirconia Restorations Using Heat Treatment: An In Vitro Study. Prosthesis 2022; 4:500-10. [DOI: 10.3390/prosthesis4030041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aim: The aim of this in vitro study is to present a debonding protocol developed to remove a screw-retained, monolithic, zirconia restoration from its titanium-base abutment, and to microscopically evaluate the abutment integrity at both the prosthetic and connection levels. Materials and Methods: A total of 30 samples were tested. Each sample consisted of a monolithic zirconia restoration bonded on a titanium link abutment. Five different shapes were designed and fabricated. Randomly, one-third of the Ti-link abutments were subjected to an anodizing process. Then, all the zirconia samples were bonded to the Ti-link abutments according to a pre-established protocol. Forty-eight hours later, the samples were debonded according to the experimental protocol. The outcomes were evaluated by a visual inspection with an optical microscope, scanning electron microscopy (SEM), and chemical composition analysis. Results: Thirty samples were collected and visually analyzed. Seven samples were randomly evaluated via scanning electron microscopy. In all the examinations, no relevant changes were reported. Chemical composition analysis also relieved no changes in the chemical structure of the titanium. Conclusions: The titanium-base abutments do not alter the structure and properties of the material, not creating phase changes or the birth of oxides such as to induce fragility. Further clinical studies with longer follow-up periods are needed to confirm these preliminary results.
Collapse
|
42
|
Al-Khanati NM, Albassal A, Kara Beit Z. Unusual Indications of Teeth Transplantation: A Literature Review. Cureus 2022; 14:e29030. [PMID: 36237754 PMCID: PMC9552854 DOI: 10.7759/cureus.29030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2022] [Indexed: 11/11/2022] Open
Abstract
Dental implants are one of the best valid tooth replacement options, though these are not always appropriate in growing young patients. Tooth autotransplantation can be indicated then. However, this is not the only scenario where dental transplantation can be indicated. This comprehensive literature review discusses a wide range of unusual indications of dental transplantation as reported throughout the medical literature. Surprisingly, these indications include management of some developmental dental anomalies, hypodontia, oroantral communications, alveolar clefts, deficient alveolar ridges, ectopic teeth, and maxillofacial injuries. Limited high-quality evidence in this field regarding most of these unusual indications warrants further research of high-quality design.
Collapse
|
43
|
Nemec M, Behm C, Maierhofer V, Gau J, Kolba A, Jonke E, Rausch-Fan X, Andrukhov O. Effect of Titanium and Zirconia Nanoparticles on Human Gingival Mesenchymal Stromal Cells. Int J Mol Sci 2022; 23:ijms231710022. [PMID: 36077419 PMCID: PMC9456558 DOI: 10.3390/ijms231710022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Nano- and microparticles are currently being discussed as potential risk factors for peri-implant disease. In the present study, we compared the responses of human gingival mesenchymal stromal cells (hG-MSCs) on titanium and zirconia nanoparticles (<100 nm) in the absence and presence of Porphyromonas gingivalis lipopolysaccharide (LPS). The primary hG-MSCs were treated with titanium and zirconia nanoparticles in concentrations up to 2.000 µg/mL for 24 h, 72 h, and 168 h. Additionally, the cells were treated with different nanoparticles (25−100 µg/mL) in the presence of P. gingivalis LPS for 24 h. The cell proliferation and viability assay and live−dead and focal adhesion stainings were performed, and the expression levels of interleukin (IL)-6, IL-8, and monocyte chemoattractant protein (MCP)-1 were measured. The cell proliferation and viability were inhibited by the titanium (>1000 µg/mL) but not the zirconia nanoparticles, which was accompanied by enhanced apoptosis. Both types of nanoparticles (>25 µg/mL) induced the significant expression of IL-8 in gingival MSCs, and a slightly higher effect was observed for titanium nanoparticles. Both nanoparticles substantially enhanced the P. gingivalis LPS-induced IL-8 production; a higher effect was observed for zirconia nanoparticles. The production of inflammatory mediators by hG-MSCs is affected by the nanoparticles. This effect depends on the nanoparticle material and the presence of inflammatory stimuli.
Collapse
Affiliation(s)
- Michael Nemec
- Clinical Division of Orthodontics, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Christian Behm
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Vera Maierhofer
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Jonas Gau
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Anastasiya Kolba
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Erwin Jonke
- Clinical Division of Orthodontics, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Xiaohui Rausch-Fan
- Clinical Division of Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Center for Clinical Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
| | - Oleh Andrukhov
- Competence Center for Periodontal Research, University Clinic of Dentistry, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence: ; Tel.: +43-1-40070-2620
| |
Collapse
|
44
|
Cao X, Wu K, Wang C, Guo Y, Lu R, Wang X, Chen S. Graphene Oxide Loaded on TiO 2-Nanotube-Modified Ti Regulates the Behavior of Human Gingival Fibroblasts. Int J Mol Sci 2022; 23:ijms23158723. [PMID: 35955856 PMCID: PMC9368857 DOI: 10.3390/ijms23158723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022] Open
Abstract
Surface topography, protein adsorption, and the loading of coating materials can affect soft tissue sealing. Graphene oxide (GO) is a promising candidate for improving material surface functionalization to facilitate soft tissue integration between cells and biomaterials. In this study, TiO2 nanotubes (TNTs) were prepared by the anodization of Ti, and TNT-graphene oxide composites (TNT-GO) were prepared by subsequent electroplating. The aim of this study was to investigate the effect of TNTs and TNT-GO surface modifications on the behavior of human gingival fibroblasts (HGFs). Commercially pure Ti and TNTs were used as the control group, and the TNT-GO surface was used as the experimental group. Scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction were used to perform sample characterization. Cell adhesion, cell proliferation, cell immunofluorescence staining, a wound-healing assay, real-time reverse-transcriptase polymerase chain reaction (RT-PCR), and Western blotting showed that the proliferation, adhesion, migration, and adhesion-related relative gene expression of HGFs on TNT-GO were significantly enhanced compared to the control groups, which may be mediated by the activation of integrin β1 and the MAPK-Erk1/2 pathway. Our findings suggest that the biological reactivity of HGFs can be enhanced by the TNT-GO surface, thereby improving the soft tissue sealing ability.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Su Chen
- Correspondence: ; Tel.: +86-010-5709-9270
| |
Collapse
|
45
|
Wang Z, Li B, Cai Q, Li X, Yin Z, Li B, Li Z, Meng W. Advances and Prospects in Antibacterial-Osteogenic Multifunctional Dental Implant Surface. Front Bioeng Biotechnol 2022; 10:921338. [PMID: 35685091 PMCID: PMC9171039 DOI: 10.3389/fbioe.2022.921338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/06/2022] [Indexed: 11/24/2022] Open
Abstract
In recent years, dental implantation has become the preferred protocol for restoring dentition defects. Being the direct contact between implant and bone interface, osseointegration is the basis for implant exerting physiological functions. Nevertheless, biological complications such as insufficient bone volume, poor osseointegration, and postoperative infection can lead to implant failure. Emerging antibacterial-osteogenic multifunctional implant surfaces were designed to make up for these shortcomings both during the stage of forming osseointegration and in the long term of supporting the superstructure. In this mini-review, we summarized the recent antibacterial-osteogenic modifications of the dental implant surface. The effects of these modifications on biological performance like soft tissue integration, bone osteogenesis, and immune response were discussed. In addition, the clinical findings and prospects of emerging antibacterial-osteogenic implant materials were also discussed.
Collapse
Affiliation(s)
- Zixuan Wang
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China.,Jilin Provincial Key Laboratory of Oral Biomedical Engineering, Changchun, China
| | - Baosheng Li
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Qing Cai
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Xiaoyu Li
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhaoyi Yin
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Birong Li
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Zhen Li
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Weiyan Meng
- Department of Dental Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| |
Collapse
|
46
|
Wen C, Muhetaer HJ, Gao Z, Wu J. Dual response of fibroblasts viability and
Porphyromonas gingivalis
adhesion on nanostructured zirconia abutment surfaces. J Biomed Mater Res A 2022; 110:1645-1654. [PMID: 35676876 DOI: 10.1002/jbm.a.37414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 05/09/2022] [Accepted: 05/23/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Cheng Wen
- Department of Stomatology The Third Affiliated Hospital of Shenzhen University, Shenzhen Luohu Hospital Group Luohu People's Hospital Shenzhen Guangdong China
| | - Huo Jia Muhetaer
- Department of Stomatology The Third Affiliated Hospital of Shenzhen University, Shenzhen Luohu Hospital Group Luohu People's Hospital Shenzhen Guangdong China
| | - Zhengyang Gao
- Department of Stomatology The Third Affiliated Hospital of Shenzhen University, Shenzhen Luohu Hospital Group Luohu People's Hospital Shenzhen Guangdong China
| | - Jincheng Wu
- Department of Stomatology The Third Affiliated Hospital of Shenzhen University, Shenzhen Luohu Hospital Group Luohu People's Hospital Shenzhen Guangdong China
| |
Collapse
|
47
|
Cinquini C, Marchio V, Di Donna E, Alfonsi F, Derchi G, Nisi M, Barone A. Histologic Evaluation of Soft Tissues around Dental Implant Abutments: A Narrative Review. Materials (Basel) 2022; 15:3811. [PMID: 35683109 DOI: 10.3390/ma15113811] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/13/2022] [Accepted: 05/25/2022] [Indexed: 01/28/2023]
Abstract
The basis for dental implant success comes not only with the titanium implant osseointegration but also depends on other factors such as the development of a soft tissue barrier, which protects the peri-implant bone from the oral environment. The characteristics of surfaces in contact with peri-implant soft tissues may affect the capacity of peri-implant mucosal cells to create a tight seal around the implant, thus influencing long-term implant success. Many histological studies on animals have been conducted on different materials to better understand their influence on peri-implant soft tissues, with the limitation that results from animal studies cannot be fully translated in humans. The aim of this review paper was to analyze the literature focusing on histological clinical studies in humans which have examined different materials or different surface treatments and their effects on peri-implant soft tissues. The research was conducted according to the following PICO question: “Do different implant/abutment materials affect peri-implant soft tissues adhesion and health?”. Nine articles were analyzed in this review. The results of this review show the influence of different abutment materials on the peri-implant soft tissues, and the need of further research regarding the effect that abutment materials, surface treatments, and surface properties have on soft tissues.
Collapse
|
48
|
Bunz O, Steegmann MC, Benz K, Testrich H, Quade A, Naumova EA, Arnold WH, Fricke K, Piwowarczyk A, Dittmar T. Human Gingival Fibroblast Adhesion and Proliferation on Hydroxyapatite-Coated Zirconia Abutment Surfaces. Materials (Basel) 2022; 15:ma15103625. [PMID: 35629651 PMCID: PMC9145355 DOI: 10.3390/ma15103625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/13/2022] [Accepted: 05/16/2022] [Indexed: 12/07/2022]
Abstract
Applying antibacterial coatings to dental implant materials seems reasonable but can have negative influences on desired cell adhesion and healing. In this study, zirconia abutment specimens interacting with gingival tissue were used. The aim was to compare the influence of machined or coated zirconia surfaces on the adhesion and proliferation of human gingival fibroblasts (HGF-1). Surface modifications were performed using atmospheric plasma coating with hydroxyapatite, zinc, and copper. Zirconia specimens were divided into four groups: hydroxyapatite, hydroxyapatite with zinc oxide (ZnO), hydroxyapatite with copper (Cu), and an untreated machined surface. After the characterization of the surface conditions, the morphology of adhered HGF-1 was determined by fluorescence staining and subjected to statistical evaluation. The visual analysis of cell morphology by SEM showed flat, polygonal, and largely adherent fibroblast cells in the untreated group, while round to partially flat cells were recorded in the groups with hydroxyapatite, hydroxyapatite + ZnO, and hydroxyapatite + Cu. The cell membranes in the hydroxyapatite + ZnO and hydroxyapatite + Cu groups appeared porous. The results show that HGF-1 adhere and proliferate well on machined zirconia, while plasma coating with hydroxyapatite or hydroxyapatite mixtures does not lead to increased adhesion or proliferation.
Collapse
Affiliation(s)
- Oskar Bunz
- Department of Prosthodontics, School of Dentistry, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany;
- Correspondence:
| | | | - Korbinian Benz
- Department of Oral Surgery and Dental Emergency Care, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany;
| | - Holger Testrich
- Research Group of Bioactive Surfaces, INP Greifswald e.V., 17489 Greifswald, Germany; (H.T.); (A.Q.); (K.F.)
| | - Antje Quade
- Research Group of Bioactive Surfaces, INP Greifswald e.V., 17489 Greifswald, Germany; (H.T.); (A.Q.); (K.F.)
| | - Ella A. Naumova
- Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany; (E.A.N.); (W.H.A.)
| | - Wolfgang H. Arnold
- Department of Biological and Material Sciences in Dentistry, School of Dentistry, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany; (E.A.N.); (W.H.A.)
| | - Katja Fricke
- Research Group of Bioactive Surfaces, INP Greifswald e.V., 17489 Greifswald, Germany; (H.T.); (A.Q.); (K.F.)
| | - Andree Piwowarczyk
- Department of Prosthodontics, School of Dentistry, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany;
| | - Thomas Dittmar
- Institute of Immunology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, 58453 Witten, Germany;
| |
Collapse
|
49
|
Abstract
Anatomically, the human tooth has structures both embedded within and forming part of the exterior surface of the human body. When a tooth is lost, it is often replaced by a dental implant, to facilitate the chewing of food and for esthetic purposes. For successful substitution of the lost tooth, hard tissue should be integrated into the implant surface. The microtopography and chemistry of the implant surface have been explored with the aim of enhancing osseointegration. Additionally, clinical implant success is dependent on ensuring that a barrier, comprising strong gingival attachment to an abutment, does not allow the infiltration of oral bacteria into the bone-integrated surface. Epithelial and connective tissue cells respond to the abutment surface, depending on its surface characteristics and the materials from which it is made. In particular, the biomechanics of the implant-abutment connection structure (i.e., the biomechanics of the interface between implant and abutment surfaces, and the screw mechanics of the implant-abutment assembly) are critical for both the soft tissue seal and hard tissue integration. Herein, we discuss the clinical importance of these three interfaces: bone-implant, gingiva-abutment, and implant-abutment.
Collapse
Affiliation(s)
- Jeong Chan Kim
- Department of Periodontology, Seoul National University School of Dentistry, Seoul 03080, Korea
| | - Min Lee
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - In-Sung Luke Yeo
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-Ro, Jongro-Gu, Seoul 03080, Korea.
| |
Collapse
|
50
|
Dab SS. Iatrogenic peri-implantitis - Factors interplaying the implant suprastructure design. Clin Adv Periodontics 2022; 12:210-217. [PMID: 35523429 DOI: 10.1002/cap.10199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 04/10/2022] [Indexed: 11/11/2022]
Abstract
FOCUSSED CLINICAL QUESTION What is the key clinically controllable preventive measure that may help reduce the incidence of biological complications? SUMMARY Implant complications are common, ineffective care and delay in diagnosis can lead to expensive time-consuming surgical and non-surgical interventions. Careful selection and placement of implant allows development of adequate emergence design of the implant suprastructure. This helps achieve effective plaque control, adequate maintenance at hygiene visits, accurate follow up assessments of the peri-implant tissues addressing the key underlying factor impacting biological complications. This clinically controllable preventative measure may be considered a vital strategy in averting peri-implant disease. CONCLUSION Surge in biological complications have led to increased patient dissatisfaction in terms of time, cost, esthetics, and maintenance. One of the factors identified in causing biological complications is the iatrogenic prosthesis related factor. Minimizing the impact of this factor is crucial to the overall implant success. Selection and placement of implant following meticulous planning, using careful surgical protocols allows development of adequate suprastructure design that improves overall patient outcomes by reducing biological complications. Further research is essential to comprehensively assess the impact of these strategies in thwarting development of biological complications. This article is protected by copyright. All rights reserved Poor design of implant suprastructure leads to ineffective plaque control, inadequate maintenance, inaccurate follow up assessments predisposing to peri-implant disease. Selection and placement of implant based on available edentulous space and adjusting the running room can allow for better emergence of the suprastructure thus allowing proper oral hygiene. This clinically controllable preventative measure may be considered a vital strategy in averting peri-implant disease. Over-contoured suprastructure predisposes to peri-implantitis. Adjusting the running room during implant placement allows better emergence and effective plaque control.
Collapse
Affiliation(s)
- Sandeep Singh Dab
- Instructor, University of Toronto Faculty of Dentistry, Davisville Periodontics, 1849, Yonge Street, Suite 116, Toronto, ON, M4S 1Y2, USA
| |
Collapse
|