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Wen G, Zhang Y, Xie S, Dong W. The influence of two distinct surface modification techniques on the clinical efficacy of titanium implants: A systematic review and meta-analysis. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024:101855. [PMID: 38582353 DOI: 10.1016/j.jormas.2024.101855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/03/2024] [Accepted: 03/28/2024] [Indexed: 04/08/2024]
Abstract
PURPOSE To compare the effectiveness of anodized and sandblasted large-grit acid-etched surface modification implants in clinical applications. METHODS This systematic review has been registered at PROSPERO (CRD42023423656). A systematic search was performed using seven databases. The meta-analysis was performed using the RevMan 5.4 program and Stata 17.0 software. An analysis of the risk of bias in the included studies was conducted using the Cochrane Handbook for Systematic Reviews of Interventions and the Newcastle-Ottawa scale. RESULTS A comprehensive analysis of 16 studies, which collectively encompassed a total of 2768 implants, was finished. Following a five years follow-up, the meta-analysis showed that the cumulative survival rate of implants was lower in the anodized group compared to the sandblasted large-grit acid-etched group (RR, 3.47; 95 % confidence interval [CI], 1.23 to 9.81; P = 0.02). Furthermore, the anodized group and the sandblasted large-grit acid-etched group had similar marginal bone loss over the one to three years follow-up period. However, it was observed that the marginal bone loss increased at the five years follow-up period in the anodized group in comparison to the sandblasted large-grit acid-etched group (SMD, 2.98; 95 % CI, 0.91 to 5.06; P = 0.005). In terms of biological complications, plaque index, bleeding on probing, and probing pocket depth, we found no statistically significant differences between the anodized and sandblasted large-grit acid-etched group. CONCLUSIONS The sandblasted large-grit acid-etched group exhibited higher implants cumulative survival rate and less marginal bone loss compared to the anodized group. Moreover, both groups demonstrated similar incidences of biological complications, plaque index, bleeding on probing, and probing pocket depth, suggesting overall equivalence in these aspects.
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Affiliation(s)
- Guochen Wen
- School of Stomatology, North China University of Science and Technology, Tangshan 063000, China
| | - Yan Zhang
- School of Stomatology, North China University of Science and Technology, Tangshan 063000, China
| | - Shanen Xie
- School of Stomatology, North China University of Science and Technology, Tangshan 063000, China
| | - Wei Dong
- School of Stomatology, North China University of Science and Technology, Tangshan 063000, China.
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Campos-Bijit V, Inostroza NC, Orellana R, Rivera A, Von Marttens A, Cortez C, Covarrubias C. Influence of Topography and Composition of Commercial Titanium Dental Implants on Cell Adhesion of Human Gingiva-Derived Mesenchymal Stem Cells: An In Vitro Study. Int J Mol Sci 2023; 24:16686. [PMID: 38069008 PMCID: PMC10706644 DOI: 10.3390/ijms242316686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
The topography and composition of dental implant surfaces directly impact mesenchymal cell adhesion, proliferation, and differentiation, crucial aspects of achieving osseointegration. However, cell adhesion to biomaterials is considered a key step that drives cell proliferation and differentiation. The aim of this study was to characterize characterize the topography and composition of commercial titanium dental implants manufactured with different surface treatments (two sandblasted/acid-etched (SLA) (INNO Implants, Busan, Republic of Korea; BioHorizonsTM, Oceanside, CA, USA) and two calcium phosphate (CaP) treated (Biounite®, Berazategui, Argentina; Zimmer Biomet, Inc., Warsaw, IN, USA)) and to investigate their influence on the process of cell adhesion in vitro. A smooth surface implant (Zimmer Biomet, Inc.) was used as a control. For that, high-resolution methodologies such as scanning electron microscopy (SEM), X-ray dispersive spectroscopy (EDX), laser scanning confocal microscopy (LSCM), and atomic force microscopy (AFM) were employed. Protein adsorption and retromolar gingival mesenchymal stem cells (GMSCs) adhesion to the implant surfaces were evaluated after 48 h. The adherent cells were examined by SEM and LSCM for morphologic and quantitative analyses. ANOVA and Tukey tests (α = 0.05) were employed to determine statistical significance. SEM revealed that INNO, BioHorizonsTM, and Zimmer implants have an irregular surface, whereas Biounite® has a regular topography consisting of an ordered pattern. EDX confirmed a calcium and phosphate layer on the Biounite® and Zimmer surfaces, and AFM exhibited different roughness parameters. Protein adsorption and cell adhesion were detected on all the implant surfaces studied. However, the Biounite® implant with CaP and regular topography showed the highest protein adsorption capacity and density of adherent GMSCs. Although the Zimmer implant also had a CaP treatment, protein and cell adhesion levels were lower than those observed with Biounite®. Our findings indicated that the surface regularity of the implants is a more determinant factor in the cell adhesion process than the CaP treatment. A regular, nanostructured, hydrophilic, and moderately rough topography generates a higher protein adsorption capacity and thus promotes more efficient cell adhesion.
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Affiliation(s)
- Vanessa Campos-Bijit
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (V.C.-B.); (N.C.I.); (R.O.)
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago 8380492, Chile
| | - Nicolás Cohn Inostroza
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (V.C.-B.); (N.C.I.); (R.O.)
| | - Rocío Orellana
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (V.C.-B.); (N.C.I.); (R.O.)
| | - Alejandro Rivera
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universidad de los Andes, Santiago 8150513, Chile;
| | - Alfredo Von Marttens
- Department of Prosthesis, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile;
| | - Cristian Cortez
- Escuela de Tecnología Médica, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile
| | - Cristian Covarrubias
- Laboratory of Nanobiomaterials, Research Institute of Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago 8380544, Chile; (V.C.-B.); (N.C.I.); (R.O.)
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Zhang W, Kohn J, Yelick PC. TyroFill-Titanium Implant Constructs for the Coordinated Repair of Rabbit Mandible and Tooth Defects. Bioengineering (Basel) 2023; 10:1277. [PMID: 38002402 PMCID: PMC10668976 DOI: 10.3390/bioengineering10111277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/03/2023] [Accepted: 10/13/2023] [Indexed: 11/26/2023] Open
Abstract
Currently used methods to repair craniomaxillofacial (CMF) bone and tooth defects require a multi-staged surgical approach for bone repair followed by dental implant placement. Our previously published results demonstrated significant bioengineered bone formation using human dental pulp stem cell (hDPSC)-seeded tyrosine-derived polycarbonate scaffolds (E1001(1K)-bTCP). Here, we improved upon this approach using a modified TyroFill (E1001(1K)/dicalcium phosphate dihydrate (DCPD)) scaffold-supported titanium dental implant model for simultaneous bone-dental implant repair. TyroFill scaffolds containing an embedded titanium implant, with (n = 3 each time point) or without (n = 2 each time point) seeded hDPCs and Human Umbilical Vein Endothelial Cells (HUVECs), were cultured in vitro. Each implant was then implanted into a 10 mm full-thickness critical-sized defect prepared on a rabbit mandibulee. After 1 and 3 months, replicate constructs were harvested and analyzed using Micro-CT histological and IHC analyses. Our results showed significant new bone formation surrounding the titanium implants in cell-seeded TyroFill constructs. This study indicates the potential utility of hDPSC/HUVEC-seeded TyroFill scaffolds for coordinated CMF bone-dental implant repair.
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Affiliation(s)
- Weibo Zhang
- Department of Orthodontics, Division of Craniofacial and Molecular Genetics, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers University, Piscataway, NJ 08854, USA
| | - Pamela C. Yelick
- Department of Orthodontics, Division of Craniofacial and Molecular Genetics, Tufts University School of Dental Medicine, Boston, MA 02111, USA
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Effect of the Nature of the Particles Released from Bone Level Dental Implants: Physicochemical and Biological Characterization. COATINGS 2022. [DOI: 10.3390/coatings12020219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The placement of bone–level dental implants can lead to the detachment of particles in the surrounding tissues due to friction with the cortical bone. In this study, 60 bone–level dental implants were placed with the same design: 30 made of commercially pure grade 4 titanium and 30 made of Ti6Al4V alloy. These implants were placed in cow ribs following the company’s placement protocols. Particles detached from the dental implants were isolated and their size and specific surface area were characterized. The irregular morphology was observed by scanning electron microscopy. Ion release to the medium was determined at different immersion times in physiological medium. Cytocompatibility studies were performed with fibroblastic and osteoblastic cells. Gene expression and cytokine release were analysed to determine the action of inflammatory cells. Particle sizes of around 15 μM were obtained in both cases. The Ti6Al4V alloy particles showed significant levels of vanadium ion release and the cytocompatibility of these particles is lower than that of commercially pure titanium. Ti6Al4V alloy presents higher levels of inflammation markers (TNFα and Il–1β) compared to that of only titanium. Therefore, there is a trend that with the alloy there is a greater toxicity and a greater pro-inflammatory response.
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Martinez MAF, Balderrama ÍDF, Karam PSBH, de Oliveira RC, de Oliveira FA, Grandini CR, Vicente FB, Stavropoulos A, Zangrando MSR, Sant'Ana ACP. Surface roughness of titanium disks influences the adhesion, proliferation and differentiation of osteogenic properties derived from human. Int J Implant Dent 2020; 6:46. [PMID: 32839885 PMCID: PMC7445212 DOI: 10.1186/s40729-020-00243-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 07/02/2020] [Indexed: 01/02/2023] Open
Abstract
PURPOSE The aim of this study was to investigate the response of osteogenic cell lineage and gingival fibroblastic cells to different surface treatments of grade IV commercially pure Titanium (cpTi) disks. MATERIAL AND METHODS Grade IV cpTi disks with different surfaces were produced: machined (M), sandblasting (B), sandblasting and acid subtraction (NP), and hydrophilic treatment (ACQ). Surface microtopography characteristics and chemical composition were investigated by scanning electron microscopy (SEM) and energy dispersive x-ray spectrometry (EDS). Adhesion and proliferation of SC-EHAD (human surgically-created early healing alveolar defects) and HGF-1 (human gingival fibroblasts) on Ti disks were investigated at 24 and 48 h, and osteogenic differentiation and mineralization were evaluated by assessing alkaline phosphatase (ALP) activity and alizarin red staining, respectively. RESULTS No significant differences were found among the various surface treatments for all surface roughness parameters, except for skewness of the assessed profile (Rsk) favoring M (p = 0.035 ANOVA). M disks showed a slightly higher (p > 0.05; Kruskal-Wallis/Dunn) adhesion of HGF-1 (89.43 ± 9.13%) than SC-EHAD cells (57.11 ± 17.72%). ACQ showed a significantly higher percentage of SC-EHAD (100%) than HGF-1 (69.67 ± 13.97%) cells adhered at 24 h. SC-EHAD cells expressed increased ALP activity in osteogenic medium at M (213%) and NP (235.04%) surfaces, but higher mineralization activity on ACQ (54.94 ± 4.80%) at 14 days. CONCLUSION These findings suggest that surface treatment influences the chemical composition and the adhesion and differentiation of osteogenic cells in vitro. CLINICAL RELEVANCE Hydrophilic surface treatment of grade IV cpTi disks influences osteogenic cell adhesion and differentiation, which might enhance osseointegration.
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Affiliation(s)
- Maria Alejandra Frias Martinez
- Department of Prosthodontics and Periodontics, Discipline of Periodontics, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, 17012-901, Brazil
| | - Ísis de Fátima Balderrama
- Department of Prosthodontics and Periodontics, Discipline of Periodontics, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, 17012-901, Brazil.
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden.
| | - Paula Stephania Brandão Hage Karam
- Department of Prosthodontics and Periodontics, Discipline of Periodontics, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, 17012-901, Brazil
| | | | - Flávia Amadeu de Oliveira
- Department of Biological Sciences, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, Brazil
| | | | - Fábio Bossoi Vicente
- Anelasticity and Biomaterials Laboratory, São Paulo State University, Bauru, SP, Brazil
| | - Andreas Stavropoulos
- Department of Periodontology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Mariana Schutzer Ragghianti Zangrando
- Department of Prosthodontics and Periodontics, Discipline of Periodontics, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, 17012-901, Brazil
| | - Adriana Campos Passanezi Sant'Ana
- Department of Prosthodontics and Periodontics, Discipline of Periodontics, School of Dentistry at Bauru, University of São Paulo, Bauru, SP, 17012-901, Brazil
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Ultrastructural changes of smooth and rough titanium implant surfaces induced by metal and plastic periodontal probes. Clin Oral Investig 2020; 25:105-114. [PMID: 32564141 PMCID: PMC8590678 DOI: 10.1007/s00784-020-03341-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/11/2020] [Indexed: 11/28/2022]
Abstract
Objectives To determine the ultrastructural changes of titanium surfaces of dental implants induced by the tip of periodontal probes. Materials and methods A total of 40 samples of smooth and rough surfaces of titanium implants were randomly assigned for the treatment with metal or plastic periodontal probes under application angles of 20° and 60°. Titanium surfaces have been evaluated with CLSM prior and following to experimental probing determining various standardized 2D and 3D roughness parameters. Results The average profile and surface roughness (Ra and Sa) showed no significant difference between treated and untreated samples on smooth and rough surface areas irrespective of the probe material. On smooth surfaces several amplitude roughness parameters were increased with metal probes but reached significance only for Rp (p = 0.007). Rough surface parts showed a slight but not significant reduction of roughness following to the contact with metal probes. The surface roughness remained almost unchanged on smooth and rough implant surfaces using plastic probes. The surface roughness on implant surfaces was not dependent on the application angle irrespective of the probe material. Conclusion Probing of titanium implants with metal probes and even less with plastic probes causes only minor changes of the surface roughness. The clinical significance of these changes remains to be elucidated. Clinical relevance Using plastic probes for the clinical evaluation of the peri-implant sulcus might avoid ultrastructural changes to titanium implant surfaces.
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Materials for Orthopedic Bioimplants: Modulating Degradation and Surface Modification Using Integrated Nanomaterials. COATINGS 2020. [DOI: 10.3390/coatings10030264] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Significant research and development in the field of biomedical implants has evoked the scope to treat a broad range of orthopedic ailments that include fracture fixation, total bone replacement, joint arthrodesis, dental screws, and others. Importantly, the success of a bioimplant depends not only upon its bulk properties, but also on its surface properties that influence its interaction with the host tissue. Various approaches of surface modification such as coating of nanomaterial have been employed to enhance antibacterial activities of a bioimplant. The modified surface facilitates directed modulation of the host cellular behavior and grafting of cell-binding peptides, extracellular matrix (ECM) proteins, and growth factors to further improve host acceptance of a bioimplant. These strategies showed promising results in orthopedics, e.g., improved bone repair and regeneration. However, the choice of materials, especially considering their degradation behavior and surface properties, plays a key role in long-term reliability and performance of bioimplants. Metallic biomaterials have evolved largely in terms of their bulk and surface properties including nano-structuring with nanomaterials to meet the requirements of new generation orthopedic bioimplants. In this review, we have discussed metals and metal alloys commonly used for manufacturing different orthopedic bioimplants and the biotic as well as abiotic factors affecting the failure and degradation of those bioimplants. The review also highlights the currently available nanomaterial-based surface modification technologies to augment the function and performance of these metallic bioimplants in a clinical setting.
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Ramenzoni LL, Bösch A, Proksch S, Attin T, Schmidlin PR. Effect of high glucose levels and lipopolysaccharides-induced inflammation on osteoblast mineralization over sandblasted/acid-etched titanium surface. Clin Implant Dent Relat Res 2020; 22:213-219. [PMID: 32026615 DOI: 10.1111/cid.12884] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/02/2019] [Accepted: 01/16/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND PURPOSE Poorly controlled diabetes mellitus has been related to higher risk of implant treatment complications due to increased susceptibility to infection and delayed wound healing. Lipopolysaccharides (LPS) stimulate cytokine production leading to chronic inflammation and immunological host response that accentuates the destruction of periodontal tissues. This study aimed to evaluate the effect of different glycemic conditions on secretion and mineralization of bone matrix under sterile inflammation induced by LPS on osteoblasts seeded over sandblasted/acid-etched (SLA) titanium surface. MATERIALS AND METHODS Osteoblast cell viability was performed to determine the influence of different glucose concentrations (5.5, 8, 12, and 24 mM), which were chosen to reflect normal, postprandial, and high glucose values, similar to those typically seen in Diabetes mellitus under clinical conditions. Cells were seeded on titanium SLA discs (Straumann AG, Waldenburg, Switzerland) and exposed to glucose concentrations and LPS (1μg/mL) in order to test inflammatory response (qPCR) and mineralization (Alizarin Red staining). RESULTS Osteoblast viability was severely decreased when exposed to higher glucose levels (≥12 mM) and LPS (P < .05) compared to control. When the osteoblasts were exposed to LPS and glucose at ≥8 mM, the gene transcripts of inflammatory cytokines were ≈2.5-fold upregulated, while ≤8 mM glucose elicited no significant change compared to control without glucose treatment (P > .05). Osteoblasts exposed to LPS produced sparse extracellular matrix mineralization, especially combined with higher glucose values (≥12 mM), together with decreased calcium deposition compared to control (P < .05). CONCLUSIONS High glucose levels combined with LPS inflammatory stimulation elicited an adverse effect on the volume and quality of mineralized hard tissue formation on SLA titanium surfaces in vitro. Hence, both normal glucose levels and infection control including low levels of circulating LPS during initial osseointegration period may be required to increase the success rate of dental implants.
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Affiliation(s)
- Liza L Ramenzoni
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Laboratory of Applied Periodontal and Peri-implantitis Sciences, Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Adrian Bösch
- Clinic for Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Zurich, Switzerland
| | - Susanne Proksch
- G.E.R.N. Tissue Replacement, Regeneration & Neogenesis, Department of Operative Dentistry and Periodontology, Medical Center, University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Thomas Attin
- Laboratory of Applied Periodontal and Peri-implantitis Sciences, Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Patrick R Schmidlin
- Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.,Laboratory of Applied Periodontal and Peri-implantitis Sciences, Clinic of Conservative and Preventive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland
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Gu M, Lv L, Du F, Niu T, Chen T, Xia D, Wang S, Zhao X, Liu J, Liu Y, Xiong C, Zhou Y. Effects of thermal treatment on the adhesion strength and osteoinductive activity of single-layer graphene sheets on titanium substrates. Sci Rep 2018; 8:8141. [PMID: 29802306 PMCID: PMC5970187 DOI: 10.1038/s41598-018-26551-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 05/09/2018] [Indexed: 01/22/2023] Open
Abstract
In recent years, dental implants have become the preferred approach for the restoration of missing teeth. At present, most dental implants are made of pure titanium, and are affected by peri-implantitis and bone resorption, which usually start from the implant neck, due to the complex environment in this region. To address these issues, in this study we modified the surface of titanium (Ti) implants to exploit the antibacterial and osteoinductive effects of single-layer graphene sheets. Chemical vapor deposition (CVD)-grown single-layer graphene sheets were transferred to titanium discs, and a method for improving the adhesion strength of graphene on Ti was developed due to compromised adhesion strength between graphene and titanium surface. A thermal treatment of 2 h at 160 °C was found to enhance the adhesion strength of graphene on Ti to facilitate clinical transformation. Graphene coatings of Ti enhanced cell adhesion and osteogenic differentiation, and imparted antibacterial activity to Ti substrate; these favorable effects were not affected by the thermal treatment. In summary, the present study elucidated the effects of a thermal treatment on the adhesion strength and osteoinductive activity of single-layer graphene sheets on titanium substrates.
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Affiliation(s)
- Ming Gu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Longwei Lv
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Feng Du
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, PR China
| | - Tianxiao Niu
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, PR China
| | - Tong Chen
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Dandan Xia
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Siyi Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Xiao Zhao
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Jianzhang Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China. .,National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Disease, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, PR China.
| | - Chunyang Xiong
- Department of Mechanics and Engineering Science, College of Engineering, Peking University, Beijing, 100871, PR China
| | - Yongsheng Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, 22 Zhongguancun Avenue South, Beijing, 100081, PR China.,National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Disease, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, PR China
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Pettersson M, Pettersson J, Molin Thorén M, Johansson A. Release of titanium after insertion of dental implants with different surface characteristics - an ex vivo animal study. ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA 2017; 3:63-73. [PMID: 29242814 PMCID: PMC5724801 DOI: 10.1080/23337931.2017.1399270] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 10/27/2017] [Indexed: 12/27/2022]
Abstract
In the present study, amount of titanium (Ti) released into the surrounding bone during placement of implants with different surface structure was investigated. Quantification of Ti released during insertion from three different implants was performed in this ex vivo study. Jaw bone from pigs was used as model for installation of the implants and Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) was used for analysis of the released Ti. Implant surface were examined with scanning electron microscopy (SEM), before and after the placement into the bone. Ti was abraded to the surrounding bone upon insertion of a dental implant and the surface roughness of the implant increased the amount of Ti found. Diameter and total area of the implant were of less importance for the Ti released to the bone. No visible damages to the implant surfaces could be identified in SEM after placement.
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Affiliation(s)
- Mattias Pettersson
- Prosthetic Dentistry, Department of Odontology, Faculty of Medicine, Umeå UniversitySweden
| | - Jean Pettersson
- Analytic Chemistry, BMC, Department of Chemistry, Uppsala UniversitySweden
| | - Margareta Molin Thorén
- Prosthetic Dentistry, Department of Odontology, Faculty of Medicine, Umeå UniversitySweden
| | - Anders Johansson
- Molecular Periodontology, Department of Odontology, Faculty of Medicine, Umeå UniversitySweden
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Huang J, Zhang X, Yan W, Chen Z, Shuai X, Wang A, Wang Y. Nanotubular topography enhances the bioactivity of titanium implants. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:1913-1923. [DOI: 10.1016/j.nano.2017.03.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/07/2017] [Accepted: 03/26/2017] [Indexed: 12/19/2022]
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12
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Lee JH, Jeong WS, Seo SJ, Kim HW, Kim KN, Choi EH, Kim KM. Non-thermal atmospheric pressure plasma functionalized dental implant for enhancement of bacterial resistance and osseointegration. Dent Mater 2017; 33:257-270. [PMID: 28088458 DOI: 10.1016/j.dental.2016.11.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 10/06/2016] [Accepted: 11/29/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Even though roughened titanium (Ti) and Ti alloys have been clinically used as dental implant, they encourage bacterial adhesion, leading to failure of the initial stability. Here, the non-thermal atmospheric pressure plasma jet (NTAPPJ) functionalized Ti and Ti alloy were investigated to promote cellular activities but inhibit the initial attachment of the adherent pioneer bacterium, Streptococcus sanguinis, without topographical changes. METHODS After the produced radicals from NTAPPJ were characterized, bacterial adhesion to specimens was assessed by PrestoBlue assay and live-dead staining with or without the NTAPPJ functionalizing. After the surface was characterized using optical profilometry, X-ray photoelectron spectroscopy and contact angle analysis, the ions released from the specimens were investigated. In vitro initial cell attachment (4h or 24h) with adhesion images and alkaline phosphatase activity (ALP, 14 days) measurements were performed using rat bone marrow-derived mesenchymal stem cells. RESULTS The initial bacterial adhesion to the Ti and Ti alloy was significantly inhibited after NTAPPJ functionalizing (p<0.05) compared to those without NTAPPJ functionalizing. The bacterial adhesion-resistance effect was induced by carbon cleaning, which was dependent on the working gas used on the Ti specimens (nitrogen>ammonia and air, p<0.05). The initial cell adhesion with well-developed vinculin localization and consequent ALP activity at 14days to the NTAPPJ-functionalized specimens were superior to the non-treated specimens. SIGNIFICANCE For the promising success of dental implants, NTAPPJ functionalizing is suggested as a novel surface modification technique; this technique can help ensure the success of integration between the dental implants and bone tissues with less concern of inflammation.
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Affiliation(s)
- Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Republic of Korea; Department and Research Institute of Dental Biomaterials and Bioengineering, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seoul 03722, Republic of Korea; The Department of Oral Biology, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Won-Seok Jeong
- Department and Research Institute of Dental Biomaterials and Bioengineering, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Seog-Jin Seo
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Republic of Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, 119 Dandae-ro, Cheonan 31116, Republic of Korea; Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Republic of Korea; Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan 31116, Republic of Korea
| | - Kyoung-Nam Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seoul 03722, Republic of Korea
| | - Eun-Ha Choi
- Plasma Bioscience Research Center, Kwangwoon University, Kwangwoon-ro 20, Seoul 01897, Republic of Korea
| | - Kwang-Mahn Kim
- Department and Research Institute of Dental Biomaterials and Bioengineering, Brain Korea 21 PLUS Project, Yonsei University College of Dentistry, 50-1 Yonsei-ro, Seoul 03722, Republic of Korea.
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Murphy M, Walczak M, Thomas A, Silikas N, Berner S, Lindsay R. Toward optimizing dental implant performance: Surface characterization of Ti and TiZr implant materials. Dent Mater 2017; 33:43-53. [DOI: 10.1016/j.dental.2016.10.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 09/29/2016] [Accepted: 10/09/2016] [Indexed: 01/05/2023]
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Klymov A, Te Riet J, Mulder P, Gardeniers JGE, Jansen JA, Walboomers XF. Nanometer-grooved topography stimulates trabecular bone regeneration around a concave implant in a rat femoral medulla model. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:2283-2290. [PMID: 27389148 DOI: 10.1016/j.nano.2016.06.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 05/18/2016] [Accepted: 06/21/2016] [Indexed: 11/18/2022]
Abstract
In the present study, a method was developed to reproduce two nanogrooved patterns (groove width/ridge width/depth: 150/150/50 nm and 200/800/70 nm) into cylindrical epoxy resin implants, which were subsequently coated with 20 nm of titanium. Also, implants with a conventional surface roughness (Rq=1.6 μm) were produced. After cytocompatibility analysis of the produced surfaces, implants were installed into the femoral condyle of rats for 4 and 8 weeks. The histomorphometrical analysis of bone volume in a 100 μm wide zone close to the implant surface showed that only for the 200/800 grooves the amount of bone increased significantly between 4 and 8 weeks of implantation. In addition, at the late time point only implants with the 200/800 pattern revealed a significantly higher bone volume compared to the rough controls. In conclusion, the 200/800 grooved pattern can positively influence bone volume adjacent to the implant surface, and should be evaluated and optimized in further (pre-)clinical studies.
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Affiliation(s)
- Alexey Klymov
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Joost Te Riet
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Peter Mulder
- Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, the Netherlands
| | - Johannes G E Gardeniers
- Mesoscale Chemical Systems Group, MESA+ Institute for Nanotechnology, University of Twente, Enschede, the Netherlands
| | - John A Jansen
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, the Netherlands
| | - X Frank Walboomers
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, the Netherlands.
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Klymov A, Song J, Cai X, Te Riet J, Leeuwenburgh S, Jansen JA, Walboomers XF. Increased acellular and cellular surface mineralization induced by nanogrooves in combination with a calcium-phosphate coating. Acta Biomater 2016; 31:368-377. [PMID: 26691523 DOI: 10.1016/j.actbio.2015.11.061] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 11/24/2015] [Accepted: 11/29/2015] [Indexed: 11/28/2022]
Abstract
The current work evaluated the influence of nanoscale surface-topographies in combination with a calcium phosphate (CaP) coating on acellular and cellular surface mineralization. Four groups of substrates were produced, including smooth, grooved (940nm pitch, 430nm groove width, 185nm depth), smooth coated, and grooved coated. The substrates were characterized by scanning/transmission electron microscopy and atomic force microscopy. Osteoblast-like MC3T3 cells were cultured on the substrates for a period up to 35days under osteogenic conditions. Differentiation was observed by alkaline phosphatase assay and PCR of collagen I (COLI), osteopontin (OPN), osteocalcin (OC), bone-morphogenic protein 2 (BMP2), and bone sialoprotein (BSP). Mineralization was quantified by a calcium assay and Alizarin Red staining. In addition, acellular mineralization was determined after incubation of substrates in just cell culture medium without cells. Results showed that a reproducible nano-metric (∼50nm) CaP-layer could be applied on the substrates, without losing the integrity of the topographical features. While no relevant differences were found for cell viability, cells on smooth surfaces proliferated for a longer period than cells on grooved substrates. In addition, differentiation was affected by topographies, as indicated by an increased expression of OC, OPN and ALP activity. Deposition of a CaP coating significantly increased the acellular mineralization of smooth as well grooved substrate-surfaces. However, this mineralizing effect was strongly reduced in the presence of cells. In the cell seeded situation, mineralization was significantly increased by the substrate topography, while only a minor additive effect of the coating was observed. In conclusion, the model presented herein can be exploited for experimental evaluation of cell-surface interaction processes and optimization of bone-anchoring capability of implants. The model showed that substrates modified with CaP-coated coated nanogrooves display enhanced in vitro mineralization as compared to unmodified controls or substrates modified with either nanogrooves or CaP coatings. However, our results also indicated that acellular mineralization assays are not necessarily predictive for biological performance. STATEMENT OF SIGNIFICANCE The manuscript describes the possibility to combine the mechanical properties of nanosized topographies with the biochemical properties of a calcium phosphate based coating for improvement of surface mineralization. Interestingly, our results demonstrate that further incubation of our surfaces in SBF type media allowed all surfaces to mineralize rapidly to a high extent. Moreover we prove that nanotexture be used to can stimulate and organize mineralization and that the combination surface of a CaP coating and a nanotexture has the potential to be effective as a bone-implant surface. Such experiments will be of considerable interest to those in the research community and industry, who are focusing on bio-mineralization processes and optimization of modern bone-implants.
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Affiliation(s)
- Alexey Klymov
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jiankang Song
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Xinjie Cai
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Joost Te Riet
- Department of Tumor Immunology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Sander Leeuwenburgh
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands
| | - John A Jansen
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands
| | - X Frank Walboomers
- Department of Biomaterials, Radboud University Medical Center, Nijmegen, The Netherlands.
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Mechanical and Histological Effects of Resorbable Blasting Media Surface Treatment on the Initial Stability of Orthodontic Mini-Implants. BIOMED RESEARCH INTERNATIONAL 2016; 2016:7520959. [PMID: 26942200 PMCID: PMC4749767 DOI: 10.1155/2016/7520959] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/27/2015] [Indexed: 11/17/2022]
Abstract
Introduction. This study aimed to evaluate the effects of resorbable blasting media (RBM) treatment on early stability of orthodontic mini-implants by mechanical, histomorphometric, and histological analyses. Methods. Ninety-six (64 for mechanical study and 32 for histological study and histomorphometric analysis) titanium orthodontic mini-implants (OMIs) with machined (machined group) or RBM-treated (CaP) surface (RBM group) were implanted in the tibiae of 24 rabbits. Maximum initial torque (MIT) was measured during insertion, and maximum removal torque (MRT) and removal angular momentum (RAM) were measured at 2 and 4 weeks after implantation. Bone-to-implant contact (BIC) and bone area (BA) were analyzed at 4 weeks after implantation. Results. RBM group exhibited significantly lower MIT and significantly higher MRT and RAM at 2 weeks than machined group. No significant difference in MRT, RAM, and BIC between the two groups was noted at 4 weeks, although BA was significantly higher in RBM group than in machined group. RBM group showed little bone resorption, whereas machined group showed new bone formation after bone resorption. Conclusions. RBM surface treatment can provide early stability of OMIs around 2 weeks after insertion, whereas stability of machined surface OMIs may decrease in early stages because of bone resorption, although it can subsequently recover by new bone apposition.
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Yang WE, Lan MY, Lee SW, Chang JK, Huang HH. Primary human nasal epithelial cell response to titanium surface with a nanonetwork structure in nasal implant applications. NANOSCALE RESEARCH LETTERS 2015; 10:167. [PMID: 25977647 PMCID: PMC4420767 DOI: 10.1186/s11671-015-0849-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2015] [Accepted: 03/07/2015] [Indexed: 06/04/2023]
Abstract
In nasal reconstruction applications, the response of cells to titanium (Ti) implants is largely determined by the surface characteristics of the implant. This study investigated an electrochemical anodization surface treatment intended to improve the response of primary human nasal epithelial cells (HNEpC) to Ti surfaces in nasal implant applications. We used a simple and fast electrochemical anodization treatment, i.e., applying anodic current, to produce a titanium dioxide (TiO2) nanonetwork layer on the Ti surface with average lateral pore size below 100 nm, depending on the current applied. The TiO2 nanonetwork layer exhibited enhanced hydrophilicity and protein adsorption ability compared with untreated Ti surfaces. In addition, the spreading morphology, cytoskeletal arrangement, and proliferation of HNEpC on the nanonetwork layer indicated excellent cell response characteristics. This research advances our understanding regarding the means by which a TiO2 nanonetwork layer can improve the response of HNEpC to Ti surfaces in nasal implant applications.
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Affiliation(s)
- Wei-En Yang
- />Institute of Oral Biology, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan
| | - Ming-Ying Lan
- />Department of Otolaryngology, Taipei Veterans General Hospital, No.201, Sec.2, Shipai Road, Taipei, 112 Taiwan
- />School of Medicine, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan
| | - Sheng-Wei Lee
- />Institute of Materials Science and Engineering, National Central University, No. 300, Jhongda Road, Taoyuan, 320 Taiwan
| | - Jeng-Kuei Chang
- />Institute of Materials Science and Engineering, National Central University, No. 300, Jhongda Road, Taoyuan, 320 Taiwan
| | - Her-Hsiung Huang
- />Institute of Oral Biology, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan
- />Department of Dentistry, National Yang-Ming University, No.155, Sec.2, Linong Street, Taipei, 112 Taiwan
- />Graduate Institute of Basic Medical Science, China Medical University, No.91, Hsueh-Shih Road, Taichung, 404 Taiwan
- />Department of Medical Research, China Medical University Hospital, No.2, Yude Road, Taichung, 404 Taiwan
- />Department of Biomedical Informatics, Asia University, No.500, Lioufeng Road, Taichung, 413 Taiwan
- />Department of Stomatology, Taipei Veterans General Hospital, No.201, Sec.2, Shipai Road, Taipei, 112 Taiwan
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Osseointegration: hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales. Dent Mater 2014; 31:37-52. [PMID: 25467952 DOI: 10.1016/j.dental.2014.10.007] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 09/14/2014] [Accepted: 10/31/2014] [Indexed: 01/14/2023]
Abstract
OBJECTIVE Osseointegration has been a proven concept in implant dentistry and orthopedics for decades. Substantial efforts for engineering implants for reduced treatment time frames have focused on micrometer and most recently on nanometer length scale alterations with negligible attention devoted to the effect of both macrometer design alterations and surgical instrumentation on osseointegration. This manuscript revisits osseointegration addressing the individual and combined role of alterations on the macrometer, micrometer, and nanometer length scales on the basis of cell culture, preclinical in vivo studies, and clinical evidence. METHODS A critical appraisal of the literature was performed regarding the impact of dental implant designing on osseointegration. Results from studies with different methodological approaches and the commonly observed inconsistencies are discussed. RESULTS It is a consensus that implant surface topographical and chemical alterations can hasten osseointegration. However, the tailored combination between multiple length scale design parameters that provides maximal host response is yet to be determined. SIGNIFICANCE In spite of the overabundant literature on osseointegration, a proportional inconsistency in findings hitherto encountered warrants a call for appropriate multivariable study designing to ensure that adequate data collection will enable osseointegration maximization and/or optimization, which will possibly lead to the engineering of endosteal implant designs that can be immediately placed/loaded regardless of patient dependent conditions.
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Coelho PG, Jimbo R. Osseointegration of metallic devices: Current trends based on implant hardware design. Arch Biochem Biophys 2014; 561:99-108. [DOI: 10.1016/j.abb.2014.06.033] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/24/2014] [Accepted: 06/25/2014] [Indexed: 12/18/2022]
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Yeo IS. Reality of dental implant surface modification: a short literature review. Open Biomed Eng J 2014; 8:114-9. [PMID: 25400716 PMCID: PMC4231373 DOI: 10.2174/1874120701408010114] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/22/2014] [Accepted: 09/25/2014] [Indexed: 01/25/2023] Open
Abstract
Screw-shaped endosseous implants that have a turned surface of commercially pure titanium have a disadvantage of requiring a long time for osseointegration while those implants have shown long-term clinical success in single and multiple restorations. Titanium implant surfaces have been modified in various ways to improve biocompatibility and accelerate osseointegration, which results in a shorter edentulous period for a patient. This article reviewed some important modified titanium surfaces, exploring the in vitro, in vivo and clinical results that numerous comparison studies reported. Several methods are widely used to modify the topography or chemistry of titanium surface, including blasting, acid etching, anodic oxidation, fluoride treatment, and calcium phosphate coating. Such modified surfaces demonstrate faster and stronger osseointegration than the turned commercially pure titanium surface. However, there have been many studies finding no significant differences in in vivo bone responses among the modified surfaces. Considering those in vivo results, physical properties like roughening by sandblasting and acid etching may be major contributors to favorable bone response in biological environments over chemical properties obtained from various modifications including fluoride treatment and calcium phosphate application. Recently, hydrophilic properties added to the roughened surfaces or some osteogenic peptides coated on the surfaces have shown higher biocompatibility and have induced faster osseointegration, compared to the existing modified surfaces. However, the long-term clinical studies about those innovative surfaces are still lacking.
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Affiliation(s)
- In-Sung Yeo
- Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea
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21
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Micro-Raman spectroscopic analysis of TiO2 phases on the root surfaces of commercial dental implants. Dent Mater 2014; 30:861-7. [DOI: 10.1016/j.dental.2014.05.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 04/21/2014] [Accepted: 05/21/2014] [Indexed: 11/19/2022]
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Vivan Cardoso M, Vandamme K, Chaudhari A, De Rycker J, Van Meerbeek B, Naert I, Duyck J. Dental Implant Macro-Design Features Can Impact the Dynamics of Osseointegration. Clin Implant Dent Relat Res 2013; 17:639-45. [DOI: 10.1111/cid.12178] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Marcio Vivan Cardoso
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
| | - Katleen Vandamme
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
| | - Amol Chaudhari
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
| | - Judith De Rycker
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
| | - Bart Van Meerbeek
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Conservative Dentistry; Leuven Belgium
| | - Ignace Naert
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
| | - Joke Duyck
- Department of Oral Health Sciences & BIOMAT Research Cluster; KU Leuven & University Hospitals Leuven; Prosthetic Dentistry; Leuven Belgium
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