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Hosseini M, Worsaae N, Gotfredsen K. SURVIVAL RATE OF IMPLANT-SUPPORTED, SINGLE-TOOTH RESTORATIONS BASED ON ZIRCONIA OR METAL ABUTMENT IN PATIENTS WITH TOOTH AGENESIS: A 5-YEARS PROSPECTIVE CLINICAL STUDY. J Evid Based Dent Pract 2024; 24:101970. [PMID: 38821661 DOI: 10.1016/j.jebdp.2024.101970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/22/2023] [Accepted: 01/13/2024] [Indexed: 06/02/2024]
Abstract
OBJECTIVES The primary aim was to investigate survival rate of zirconia versus metal abutments, and the secondary aim was clinical outcomes of all-ceramic versus metal-ceramic crowns on single-tooth implants. METHODS Patients with tooth-agenesis participated to previously published prospective clinical study with 3-year follow-up were recalled after 5 years. Biological variables included survival and success rate of implants, marginal bone level, modified Plaque and Sulcus Bleeding Index and biological complications. Technical variables included restoration survival rate, marginal adaptation and technical complications. The aesthetic outcome of crowns and peri-implant mucosa in addition to patient-reported outcome were recorded. Descriptive analysis, linear mixed model for quantitative data, or generalized linear mixed model for ordinal categorical data were applied; significance was set to 0.05. RESULTS Fifty-three patients (mean age: 32.4 years), with 89 implants participated to the 5-years examination. The implants supported 50 zirconia abutments with 50 all-ceramic (AC) crown and 39 metal abutments with 29 metal-ceramic (MC) and 10 AC crowns. The Implant and restoration survival rate was 100% and 96%, respectively. No clinically relevant biological difference between implants supporting metal or zirconia abutments was registered. The technical complications were veneering fracture of AC-crowns (n = 3), crown loosening of MC-crowns (n = 4) and one abutment screw loosening (MC-crown on metal abutment). MC-crowns had significantly better marginal adaptation than AC-crowns (p = .01). AC-crowns had significantly better color and morphology than MC-crowns (p = .01). CONCLUSIONS Zirconia-based single-tooth restorations are reliable alternative materials to metal-based restorations with favorable biological and aesthetic outcome, and few technical complications.
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Affiliation(s)
- Mandana Hosseini
- Section of Oral Rehabilitation, Department of Odontology, Faculty of Health Science, University of Copenhagen, Copenhagen N-2200, Denmark.
| | - Nils Worsaae
- Department of Oral and Maxillofacial Surgery, University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Klaus Gotfredsen
- Section of Oral Rehabilitation, Department of Odontology, Faculty of Health Science, University of Copenhagen, Copenhagen N-2200, Denmark
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Tang K, Luo ML, Zhou W, Niu LN, Chen JH, Wang F. The integration of peri-implant soft tissues around zirconia abutments: Challenges and strategies. Bioact Mater 2023; 27:348-361. [PMID: 37180640 PMCID: PMC10172871 DOI: 10.1016/j.bioactmat.2023.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/23/2023] [Accepted: 04/09/2023] [Indexed: 05/16/2023] Open
Abstract
Stable soft tissue integration around the implant abutment attenuates pathogen penetration, protects underlying bone tissue, prevents peri-implantitis and is essential in maintaining long-term implant stability. The desire for "metal free" and "aesthetic restoration" has favored zirconia over titanium abutments, especially for implant restorations in the anterior region and for patients with thin gingival biotype. Soft tissue attachment to the zirconia abutment surface remains a challenge. A comprehensive review of advances in zirconia surface treatment (micro-design) and structural design (macro-design) affecting soft tissue attachment is presented and strategies and research directions are discussed. Soft tissue models for abutment research are described. Guidelines for development of zirconia abutment surfaces that promote soft tissue integration and evidence-based references to inform clinical choice of abutment structure and postoperative maintenance are presented.
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Affiliation(s)
- Kai Tang
- 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, 710032, China
| | - Meng-Lin Luo
- Institute of Stomatology & Oral Maxilla Facial Key Laboratory, The First Medical Center, Chinese PLA General Hospital & Department of Stomatology, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Wei Zhou
- 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, 710032, China
| | - Li-Na 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, 710032, China
| | - Ji-Hua Chen
- 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, 710032, China
- Corresponding author.
| | - Fu 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, 710032, China
- Corresponding author.
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Togawa G, Takahashi M, Tada H, Takada Y. Development of Ternary Ti-Ag-Cu Alloys with Excellent Mechanical Properties and Antibiofilm Activity. MATERIALS (BASEL, SWITZERLAND) 2022; 15:9011. [PMID: 36556817 PMCID: PMC9781584 DOI: 10.3390/ma15249011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/14/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Titanium-20 mass% Silver (Ti-20%Ag) alloy can suppress biofilm formation on the surface. Unlike bactericidal agents, it does not kill bacteria; therefore, the healthy oral microflora remains undisturbed. To utilize the unique functions of this alloy and enable its use in the fabrication of dental prostheses that require relatively high strength, we added copper (Cu) as an alloying element to improve strength. This study aimed to develop ternary Ti-Ag-Cu alloys with excellent mechanical properties and antibiofilm activity. As a result of investigating the mechanical properties of several experimental alloys, the tensile strength, yield strength, and hardness of Ti-20%Ag-1%Cu and Ti-20%Ag-2%Cu alloys were improved by the solid-solution strengthening or hardening of the αTi phase. In addition, these alloys had the same ability to suppress biofilm formation as the Ti-20Ag alloy. Thus, Ti-20%Ag-1-2%Cu alloys can be used for fabrication of narrow-diameter dental implants and prostheses subjected to extremely high force, and these prostheses are useful in preventing post-treatment oral diseases.
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Affiliation(s)
- Genichi Togawa
- Division of Dental Biomaterials, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Masatoshi Takahashi
- Division of Dental Biomaterials, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Hiroyuki Tada
- Division of Oral Immunology, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Yukyo Takada
- Division of Dental Biomaterials, Tohoku University Graduate School of Dentistry, 4-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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Kniha K, Heussen N, Modabber A, Hölzle F, Möhlhenrich SC. The effect of zirconia and titanium surfaces on biofilm formation and on host-derived immunological parameters. Int J Oral Maxillofac Surg 2021; 50:1361-1374. [PMID: 33618967 DOI: 10.1016/j.ijom.2021.01.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 01/15/2023]
Abstract
The aim of this study was to analyse the effect of zirconia and titanium surfaces on biofilm formation and host-derived parameters. Studies comparing zirconia and titanium surfaces were selected up to September 1, 2019. The outcome measures were surface roughness, contact angle, bacterial count, bacterial adherence, biofilm thickness, bacterial distribution, and specifically investigated biofilm and specific host-derived immunological parameters. Random-effects meta-analyses of in vitro and in vivo studies were conducted. A total of 39 studies were included for data extraction. In the systematic review data, 10 studies stated that zirconia accumulated less initial oral biofilm parameters, 16 investigations showed negligible inter-material differences, and only one study showed that zirconia attracted the most biofilm. However, in the meta-analysis, the bacterial coverage was found to be significantly superior for zirconia surfaces (P< 0.00001); the other outcome measures did not show any statistically significant differences between zirconia and titanium for the remaining parameters and the studies presented a substantial degree of heterogeneity. Overall, on the basis of the meta-analysis, the current data situation does not allow a clear preference for the use of zirconia or titanium.
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Affiliation(s)
- K Kniha
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany; Private Clinic for Oral and Maxillofacial Surgery, Munich, Germany.
| | - N Heussen
- Department of Medical Statistics, University Hospital of Aachen, Aachen, Germany
| | - A Modabber
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - F Hölzle
- Department of Oral and Maxillofacial Surgery, University Hospital RWTH Aachen, Aachen, Germany
| | - S C Möhlhenrich
- Department of Orthodontics, University of Witten/Herdecke, Witten, Germany
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Boyd JD, Stromberg AJ, Miller CS, Grady ME. Biofilm and cell adhesion strength on dental implant surfaces via the laser spallation technique. Dent Mater 2021; 37:48-59. [PMID: 33208265 PMCID: PMC7775913 DOI: 10.1016/j.dental.2020.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 01/21/2023]
Abstract
OBJECTIVE The aims of this study are to quantify the adhesion strength differential between an oral bacterial biofilm and an osteoblast-like cell monolayer to a dental implant-simulant surface and develop a metric that quantifies the biocompatible effect of implant surfaces on bacterial and cell adhesion. METHODS High-amplitude short-duration stress waves generated by laser pulse absorption are used to spall bacteria and cells from titanium substrates. By carefully controlling laser fluence and calibration of laser fluence with applied stress, the adhesion difference between Streptococcus mutans biofilms and MG 63 osteoblast-like cell monolayers on smooth and rough titanium substrates is obtained. The ratio of cell adhesion strength to biofilm adhesion strength (i.e., Adhesion Index) is determined as a nondimensionalized parameter for biocompatibility assessment. RESULTS Adhesion strength of 143 MPa, with a 95% C.I. (114, 176), is measured for MG 63 cells on smooth titanium and 292 MPa, with a 95% C.I. (267, 306), on roughened titanium. Adhesion strength for S. mutans on smooth titanium is 320 MPa, with a 95% C.I. (304, 333), and remained relatively constant at 332 MPa, with a 95% C.I. (324, 343), on roughened titanium. The calculated Adhesion Index for smooth titanium is 0.451, with a 95% C.I. (0.267, 0.622), which increased to 0.876, with a 95% C.I. (0.780, 0.932), on roughened titanium. SIGNIFICANCE The laser spallation technique provides a platform to examine the tradeoffs of adhesion modulators on both biofilm and cell adhesion. This tradeoff is characterized by the Adhesion Index, which is proposed to aid biocompatibility screening and could help improve implantation outcomes. The Adhesion Index is implemented to determine surface factors that promote favorable adhesion of cells greater than biofilms. Here, an Adhesion Index ≫ 1 suggests favorable biocompatibility.
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Affiliation(s)
- J D Boyd
- Department of Mechanical Engineering, University of Kentucky, Lexington, KY, USA
| | - A J Stromberg
- Department of Statistics, University of Kentucky, Lexington, KY, USA
| | - C S Miller
- Department of Oral Health Practice, College of Dentistry, University of Kentucky, Lexington, KY, USA; Department of Oral Health Research, College of Dentistry, University of Kentucky, Lexington, KY, USA
| | - M E Grady
- Department of Mechanical Engineering, University of Kentucky, Lexington, KY, USA.
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Yu P, Zhi Li, Tan X, Yu H. Effect of sealing gel on the microleakage resistance and mechanical behavior during dynamic loading of 3 implant systems. J Prosthet Dent 2020; 127:308-317. [PMID: 33246561 DOI: 10.1016/j.prosdent.2020.05.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/20/2020] [Accepted: 05/20/2020] [Indexed: 02/05/2023]
Abstract
STATEMENT OF PROBLEM Sealing products have been produced to reduce microleakage at the implant abutment interface. However, little is known about their effectiveness and any alterations in mechanical behavior of implant systems with their application. PURPOSE The purpose of this in vitro study was to evaluate the effect of a silicone sealing gel on implant abutment interface microleakage, abutment screw torque loss, and thread wear of implant systems in a simulated oral environment. MATERIAL AND METHODS Five specimens each of 3 implants systems (Nobel, Straumann, and WEGO) that included sealed and unsealed groups were analyzed (N=30). Before assembling the components, toluidine blue solution was injected to the implant intaglio cavity to evaluate implant abutment interface microleakage. After tightening to the recommended torque, 20 to 200 N of 30-degree off-axis dynamic force was applied at 2 Hz for 48 hours. The toluidine blue solution was extracted to test optical density values at 1, 3, 9, 24, 33, and 48 hours. Detorque values were measured before and after cycling loading, and torque loss rates were calculated. The abutment screw morphologies were observed by using scanning electron microscopy. The coefficient of friction tendency of applying sealing gel was explored with a ball-on-flat configuration. One-way ANOVA and Student t test were used for statistical analysis (α=.05). RESULTS The optical density value increased with the loading time, especially for Straumann group. The sealing gel decreased the implant abutment interface microleakage of Straumann assemblies after cyclic loading of 9 hours (P=.044), whereas no statistical difference was found for Nobel (P=.140) or WEGO groups (P=.402) at 6 time points. Torque loss occurred during tightening and further increased after dynamic cyclic load in each group. Among the 3 implant systems, Straumann implants reported the best antiloosening property (P<.001). The application of sealing gel reduced the initial (P=.048) and final (P=.032) torque loss rate in all the 3 systems. Scanning electron microscopy observations revealed the bottom thread tended to have more abrasion than the first thread. After applying sealing gel, less thread abrasion was found in Nobel and WEGO assemblies, whereas the protective effect was not evident for the Straumann group. The coefficient of friction of sealed group (0.17 ±0.026) was significantly (P=.012) lower than that of unsealed group (0.24 ±0.044). CONCLUSIONS The silicone sealing gel improved the immediate fastening and long-term antiloosening performances of 3 implant systems, decreased the implant abutment interface microleakage of Straumann system, and reduced abutment screw thread abrasion of the Nobel and WEGO systems.
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Affiliation(s)
- Ping Yu
- Doctoral candidate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Zhi Li
- Resident Doctor, Aerospace Center Hospital, Beijing, PR China
| | - Xin Tan
- Doctoral candidate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China
| | - Haiyang Yu
- Professor, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
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Herrmann H, Kern J, Kern T, Lautensack J, Conrads G, Wolfart S. Early and mature biofilm on four different dental implant materials: An in vivo human study. Clin Oral Implants Res 2020; 31:1094-1104. [DOI: 10.1111/clr.13656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Henrike Herrmann
- Department of Prosthodontics and Biomaterials Center of Implantology Medical Faculty RWTH Aachen University Aachen Germany
| | - Jaana‐Sophia Kern
- Department of Prosthodontics and Biomaterials Center of Implantology Medical Faculty RWTH Aachen University Aachen Germany
| | - Thomas Kern
- Department of Prosthodontics and Biomaterials Center of Implantology Medical Faculty RWTH Aachen University Aachen Germany
| | - Julia Lautensack
- Department of Prosthodontics and Biomaterials Center of Implantology Medical Faculty RWTH Aachen University Aachen Germany
| | - Georg Conrads
- Division of Oral Microbiology and Immunology Medical Faculty RWTH Aachen University Aachen Germany
| | - Stefan Wolfart
- Department of Prosthodontics and Biomaterials Center of Implantology Medical Faculty RWTH Aachen University Aachen Germany
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Zeller B, Stöckli S, Zaugg LK, Astasov‐Frauenhoffer M, Hauser‐Gerspach I, Waltimo T, Zitzmann NU. Biofilm formation on metal alloys, zirconia and polyetherketoneketone as implant materials in vivo. Clin Oral Implants Res 2020; 31:1078-1086. [DOI: 10.1111/clr.13654] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Barbara Zeller
- Department of Reconstructive Dentistry University Center for Dental Medicine University of Basel Basel Switzerland
| | - Simone Stöckli
- Department of Oral Health and Medicine University Center for Dental Medicine University of Basel Basel Switzerland
| | - Lucia K. Zaugg
- Department of Reconstructive Dentistry University Center for Dental Medicine University of Basel Basel Switzerland
| | | | - Irmgard Hauser‐Gerspach
- Department Research University Center for Dental Medicine University of Basel Basel Switzerland
| | - Tuomas Waltimo
- Department of Oral Health and Medicine University Center for Dental Medicine University of Basel Basel Switzerland
| | - Nicola U. Zitzmann
- Department of Reconstructive Dentistry University Center for Dental Medicine University of Basel Basel Switzerland
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Haraguchi T, Ayukawa Y, Shibata Y, Takeshita T, Atsuta I, Ogino Y, Yasunami N, Yamashita Y, Koyano K. Effect of Calcium Chloride Hydrothermal Treatment of Titanium on Protein, Cellular, and Bacterial Adhesion Properties. J Clin Med 2020; 9:E2627. [PMID: 32823609 PMCID: PMC7463643 DOI: 10.3390/jcm9082627] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/09/2020] [Accepted: 08/10/2020] [Indexed: 12/31/2022] Open
Abstract
Topographical modification of the dental implant surface is one of the main topics for the improvement of the material, however, the roughened surface has some risks for peri-implantitis. A hydrothermal treatment (HT) of titanium with calcium chloride solution was reported to improve osseointegration and soft tissue sealing without changing the surface topography; however, its mechanism is unclear. We herewith investigated the interaction between extracellular matrix (ECM) protein and HT titanium. Furthermore, we also clarified the bacterial interaction. We employed two kinds of HT, HT with water (DW-HT) and HT with calcium chloride solution (Ca-HT). As a result, the adsorptions of both laminin-332 and osteopontin onto the Ca-HT surface were enhanced. In contrast, the adsorption of albumin, which was reported to have no cell adhesion capacity, was not influenced by Ca-HT. Osteoblast adhesion onto Ca-HT was also enhanced. Although Ca-HT was reported to enhance both epithelial cell attachment strength and in vivo peri-implant epithelial bonding, the number of epithelial cell attachment was not increased even after HT. Ca-HT had no impact in the adhesion of Streptococcus gordonii. These results suggest that Ca-HT enhances cell adhesion onto titanium without increasing bacterial adhesion, and the improvement of ECM protein adsorption is supposed to contribute to cell adhesion.
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Affiliation(s)
- Takuya Haraguchi
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (T.H.); (N.Y.); (K.K.)
| | - Yasunori Ayukawa
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (T.H.); (N.Y.); (K.K.)
| | - Yukie Shibata
- Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.S.); (T.T.); (Y.Y.)
| | - Toru Takeshita
- Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.S.); (T.T.); (Y.Y.)
| | - Ikiru Atsuta
- Division of Advanced Dental Devices and Therapeutics, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;
| | - Yoichiro Ogino
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan;
| | - Noriyuki Yasunami
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (T.H.); (N.Y.); (K.K.)
| | - Yoshihisa Yamashita
- Section of Preventive and Public Health Dentistry, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (Y.S.); (T.T.); (Y.Y.)
| | - Kiyoshi Koyano
- Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; (T.H.); (N.Y.); (K.K.)
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Zupancic Cepic L, Dvorak G, Piehslinger E, Georgopoulos A. In vitro adherence of Candida albicans to zirconia surfaces. Oral Dis 2020; 26:1072-1080. [PMID: 32125751 DOI: 10.1111/odi.13319] [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: 10/27/2019] [Revised: 01/17/2020] [Accepted: 02/23/2020] [Indexed: 01/26/2023]
Abstract
OBJECTIVES This study aimed to characterize surface properties such as roughness (Ra) and surface-free energy (SFE) of glazed and polished yttria-stabilized zirconia and to evaluate in vitro adherence of fungus Candida albicans and salivary bacteria, Staphylococcus epidermidis, mixed with C. albicans to these substrata. Additionally, the influence of salivary proteins (albumin, mucin and α-amylase) on yeast adhesion was studied. MATERIAL AND METHODS Ra and SFE of glazed and polished zirconia discs were measured. Specimens were wetted with saliva and salivary proteins prior to incubation with C. albicans and mixed suspension of C. albicans and S. epidermidis for 24 hr, respectively. Microbial adhesion was quantified by counting colony-forming units (CFU). Differences in physicochemical properties were proved by t test. "Linear mixed model" with the factors "type of surface" and "wetting media" was applied to analyse the effects on fungal adhesion (p < .05). RESULTS SFE and Ra of glazed specimens were significantly higher than corresponding values of polished ones. The wetting media significantly changed the fungal binding (p = .0016). Significantly higher quantities of adhering fungi were found after mucin incubation compared to saliva (p = .004). For the factor "surface" as well as the interaction between "surface" and "wetting media," no statistically significant differences have been found. In mixed suspension, the growth of Candida was completely prevented. CONCLUSIONS Glazed and polished zirconia differs in terms of physicochemical surface properties. These differences appear to be modulated by pellicle coating affecting the biomass of adhered Candida. Mucin seems to be good binding sites for adhesion of C. albicans.
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Affiliation(s)
- Lana Zupancic Cepic
- Department of Prosthodontics, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Gabriella Dvorak
- Department for Conservative Dentistry and Periodontology, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Eva Piehslinger
- Department of Prosthodontics, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
| | - Apostolos Georgopoulos
- Core Facility Oral Microbiology and Hygiene, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria
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Gvetadze RS, Dmitrieva NA, Voronin AN. [Adhesion of microorganisms to various dental materials used to form a gum contour in implant-retained restorations]. STOMATOLOGII︠A︡ 2019; 98:118-123. [PMID: 31701941 DOI: 10.17116/stomat201998051118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The article the literature review on dental materials for the manufacture of gum formers used in dental implantology. Adhesion of microorganisms to titanium, PMMA and PEEK resins is discussed. According to published studies PEEK polymer is characterized by a similar bacterial contamination compared to titanium but shows lower degree of contamination when compared to acrylic resins in equal conditions.
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Affiliation(s)
- R Sh Gvetadze
- Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
| | - N A Dmitrieva
- Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
| | - A N Voronin
- Central Research Institute of Dentistry and Maxillofacial Surgery, Moscow, Russia
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12
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Gallegos SI, Parsaei S, Siddiqui DA, Biguetti CC, Palmer KL, Rodrigues DC. Can Dental Cement Composition Affect Dental Implant Success? ACS Biomater Sci Eng 2019; 5:5116-5127. [PMID: 33455259 DOI: 10.1021/acsbiomaterials.9b00956] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cement-retained restorations on dental implants are a well-established method to replace missing teeth. However, undetected residual cement left during crown cementation procedures encourages microorganism growth, and it has been identified as a risk factor for peri-implant disease. Currently, there is no official guidance for dental cement selection, and the increasing variety of available compositions intensifies the complexity of the clinicians' decision process. The present study aimed to evaluate the in vitro host and bacterial cellular response to four different commercial dental cements as well as their effects on cement surface morphology. Disk specimens (n = 3) of bioceramic, zinc phosphate, resin-modified glass ionomer, and resin cements were exposed to host (murine pre-osteoblasts, human gingival fibroblasts, and undifferentiated human macrophages) and oral bacterial (Streptococcus mutans, Streptococcus salivarius, Streptococcus sanguinis, and Aggregatibacter actinomycetemcomitans) cells. Results indicated that oral bacteria degraded the cement surface, but bacterial viability was not significantly affected by the presence of dental cement. Conversely, the biocompatibility and morphology of host cells were severely impacted by the cement composition. Only the bioceramic cement achieved >70% viability for all cell lines investigated. Within the limitations of this study, the results indicated the importance of considering the biological interactions of a dental cement composition during selection as it played a significant role in the host cellular response and the degree of surface degradation due to bacterial attack.
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Affiliation(s)
| | | | | | - Claudia C Biguetti
- Department of Biological Sciences, Bauru School of Dentistry, Bauru, São Paulo 17012, Brazil
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Dixon DR, London RM. Restorative design and associated risks for peri‐implant diseases. Periodontol 2000 2019; 81:167-178. [DOI: 10.1111/prd.12290] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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In Vitro Evaluation of Bacterial Adhesion and Bacterial Viability of Streptococcus mutans, Streptococcus sanguinis, and Porphyromonas gingivalis on the Abutment Surface of Titanium and Zirconium Dental Implants. Int J Dent 2019; 2019:4292976. [PMID: 31312218 PMCID: PMC6595387 DOI: 10.1155/2019/4292976] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/25/2019] [Accepted: 05/28/2019] [Indexed: 12/14/2022] Open
Abstract
Objective To evaluate the in vitro adherence and viability of 3 bacterial species Streptococcus mutans (ATCC 25175), Streptococcus sanguinis (ATCC 10556), and Porphyromonas gingivalis (ATCC 33277) on the surfaces of dental implants of titanium, zirconium, and their respective fixing screws. Methods Two analysis groups were formed: group 1 with 3 titanium pillars and group 2 with 3 zirconium pillars, each with their respective fixing screws. Each of these groups was included in tubes with bacterial cultures of Streptococcus mutans (ATCC 25175), Streptococcus sanguinis (ATCC 10556), and Porphyromonas gingivalis (ATCC 33277). These samples were incubated at 37°C under anaerobic conditions. Bacterial adherence was assessed by measurement of the change in colony-forming units (CFU), and bacterial viability was evaluated with the colorimetric test of 3-(4,5-dimethylthiazol-2)-2,5 diphenyl tetrazolium bromide (MTT). Results The bacterial adhesion in the titanium abutments was higher for Streptococcus mutans (190.90 CFU/mL), and the viability was greater in Porphyromonas gingivalis (73.22%). The zirconium abutment group showed the highest adherence with Streptococcus mutans (331.82 CFU/mL) and the highest bacterial viability with the S. sanguinis strain (38.42%). The titanium fixation screws showed the highest adhesion with S. sanguinis (132.5 CFU/mL) compared to the zirconium fixation screws where S. mutans had the highest adhesion (145.5 CFU/mL). The bacterial viability of S. mutans was greater both in the titanium fixation screws and in the zirconium fixation screws 78.04% and 57.38%, respectively. Conclusions Our results indicate that there is in vitro bacterial adherence and viability in both titanium abutments and zirconium abutments and fixation screws for both. Streptococcus mutans is the microorganism that shows the greatest adherence to the surfaces of both titanium and zirconium and the fixing screws of the latter. On the contrary, bacterial viability is greater on the titanium abutments with P. gingivalis than on the zirconium abutments with S. sanguinis. With respect to the fixation screws, in both cases, the viability of S. mutans was greater with respect to the other bacteria. In general, the titanium abutments showed less adherence but greater bacterial viability.
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Oh JK, Yegin Y, Yang F, Zhang M, Li J, Huang S, Verkhoturov SV, Schweikert EA, Perez-Lewis K, Scholar EA, Taylor TM, Castillo A, Cisneros-Zevallos L, Min Y, Akbulut M. The influence of surface chemistry on the kinetics and thermodynamics of bacterial adhesion. Sci Rep 2018; 8:17247. [PMID: 30467352 PMCID: PMC6250697 DOI: 10.1038/s41598-018-35343-1] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 10/29/2018] [Indexed: 11/29/2022] Open
Abstract
This work is concerned with investigating the effect of substrate hydrophobicity and zeta potential on the dynamics and kinetics of the initial stages of bacterial adhesion. For this purpose, bacterial pathogens Staphylococcus aureus and Escherichia coli O157:H7 were inoculated on the substrates coated with thin thiol layers (i.e., 1-octanethiol, 1-decanethiol, 1-octadecanethiol, 16-mercaptohexadecanoic acid, and 2-aminoethanethiol hydrochloride) with varying hydrophobicity and surface potential. The time-resolved adhesion data revealed a transformation from an exponential dependence to a square root dependence on time upon changing the substrate from hydrophobic or hydrophilic with a negative zeta potential value to hydrophilic with a negative zeta potential for both pathogens. The dewetting of extracellular polymeric substances (EPS) produced by E. coli O157:H7 was more noticeable on hydrophobic substrates, compared to that of S. aureus, which is attributed to the more amphiphilic nature of staphylococcal EPS. The interplay between the timescale of EPS dewetting and the inverse of the adhesion rate constant modulated the distribution of E. coli O157:H7 within microcolonies and the resultant microcolonial morphology on hydrophobic substrates. Observed trends in the formation of bacterial monolayers rather than multilayers and microcolonies rather than isolated and evenly spaced bacterial cells could be explained by a colloidal model considering van der Waals and electrostatic double-layer interactions only after introducing the contribution of elastic energy due to adhesion-induced deformations at intercellular and substrate-cell interfaces. The gained knowledge is significant in the context of identifying surfaces with greater risk of bacterial contamination and guiding the development of novel surfaces and coatings with superior bacterial antifouling characteristics.
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Affiliation(s)
- Jun Kyun Oh
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, 77843, USA
| | - Yagmur Yegin
- Department of Nutrition and Food Science, Texas A&M University, College Station, Texas, 77843, USA
| | - Fan Yang
- Department of Chemistry, Texas A&M University, College Station, Texas, 77843, USA
| | - Ming Zhang
- Department of Polymer Engineering, University of Akron, Akron, Ohio, 44325, USA
| | - Jingyu Li
- Department of Polymer Engineering, University of Akron, Akron, Ohio, 44325, USA
| | - Shifeng Huang
- Department of Polymer Engineering, University of Akron, Akron, Ohio, 44325, USA
| | | | - Emile A Schweikert
- Department of Chemistry, Texas A&M University, College Station, Texas, 77843, USA
| | - Keila Perez-Lewis
- Department of Animal Science, Texas A&M University, College Station, Texas, 77843, USA
| | - Ethan A Scholar
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, 77843, USA
| | - T Matthew Taylor
- Department of Animal Science, Texas A&M University, College Station, Texas, 77843, USA
| | - Alejandro Castillo
- Department of Animal Science, Texas A&M University, College Station, Texas, 77843, USA
| | - Luis Cisneros-Zevallos
- Department of Horticultural Sciences, Texas A&M University, College Station, Texas, 77843, USA
| | - Younjin Min
- Department of Polymer Engineering, University of Akron, Akron, Ohio, 44325, USA.
| | - Mustafa Akbulut
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas, 77843, USA.
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas, 77843, USA.
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Sanz-Sánchez I, Sanz-Martín I, Carrillo de Albornoz A, Figuero E, Sanz M. Biological effect of the abutment material on the stability of peri-implant marginal bone levels: A systematic review and meta-analysis. Clin Oral Implants Res 2018; 29 Suppl 18:124-144. [DOI: 10.1111/clr.13293] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/05/2018] [Accepted: 05/08/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Ignacio Sanz-Sánchez
- Section of Graduate Periodontology; University Complutense; Madrid Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group; University Complutense; Madrid Spain
| | | | | | - Elena Figuero
- Section of Graduate Periodontology; University Complutense; Madrid Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group; University Complutense; Madrid Spain
| | - Mariano Sanz
- Section of Graduate Periodontology; University Complutense; Madrid Spain
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group; University Complutense; Madrid Spain
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Stanković-Pešić J, Kostić M, Igić M, Đorđević V. Biofilm formation on dental materials. ACTA STOMATOLOGICA NAISSI 2018. [DOI: 10.5937/asn1877821p] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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18
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Effect of titanium and zirconia dental implant abutments on a cultivable polymicrobial saliva community. J Prosthet Dent 2017; 118:481-487. [DOI: 10.1016/j.prosdent.2017.01.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 01/10/2017] [Accepted: 01/10/2017] [Indexed: 12/23/2022]
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Alhilou A, Do T, Mizban L, Clarkson BH, Wood DJ, Katsikogianni MG. Physicochemical and Antibacterial Characterization of a Novel Fluorapatite Coating. ACS OMEGA 2016; 1:264-276. [PMID: 27656690 PMCID: PMC5026462 DOI: 10.1021/acsomega.6b00080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Peri-implantitis remains the major impediment to the long-term use of dental implants. With increasing concern over the growth in antibiotic resistance, there is considerable interest in the preparation of antimicrobial dental implant coatings that also induce osseointegration. One such potential coating material is fluorapatite (FA). The aim of this study was to relate the antibacterial effectiveness of FA coatings against pathogens implicated in peri-implantitis to the physicochemical properties of the coating. Ordered and disordered FA coatings were produced on the under and upper surfaces of stainless steel (SS) discs, respectively, using a hydrothermal method. Surface charge, surface roughness, wettability, and fluoride release were measured for each coating. Surface chemistry was assessed using X-ray photoelectron spectroscopy and FA crystallinity using X-ray diffraction. Antibacterial activity against periodontopathogens was assessed in vitro using viable counts, confocal microscopy, and scanning electron microscopy (SEM). SEM showed that the hydrothermal method produced FA coatings that were predominately aligned perpendicular to the SS substrate or disordered FA coatings consisting of randomly aligned rodlike crystals. Both FA coatings significantly reduced the growth of all examined bacterial strains in comparison to the control. The FA coatings, especially the disordered ones, presented significantly lower charge, greater roughness, and higher area when compared to the control, enhancing bacteria-material interactions and therefore bacterial deactivation by fluoride ions. The ordered FA layer reduced not only bacterial viability but adhesion too. The ordered FA crystals produced as a potential novel implant coating showed significant antibacterial activity against bacteria implicated in peri-implantitis, which could be explained by a detailed understanding of their physicochemical properties.
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Affiliation(s)
- Ahmed Alhilou
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Thuy Do
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Laith Mizban
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Brian H. Clarkson
- Cariology,
Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor 48109-1078, United States
| | - David J. Wood
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Maria G. Katsikogianni
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
- Advanced
Materials Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, U.K.
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Surface characterization and biological evaluation of silver-incorporated DLC coatings fabricated by hybrid RF PACVD/MS method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 63:462-74. [DOI: 10.1016/j.msec.2016.03.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 01/25/2016] [Accepted: 03/02/2016] [Indexed: 02/04/2023]
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Pita MS, do Nascimento C, dos Santos CGP, Pires IM, Pedrazzi V. Experimental conical-head abutment screws on the microbial leakage through the implant-abutment interface: an in vitro
analysis using target-specific DNA probes. Clin Oral Implants Res 2016; 28:e68-e75. [DOI: 10.1111/clr.12876] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2016] [Indexed: 12/01/2022]
Affiliation(s)
- Murillo S. Pita
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; 14040-904 São Paulo SP Brazil
| | - Cássio do Nascimento
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; 14040-904 São Paulo SP Brazil
| | - Carla G. P. dos Santos
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; 14040-904 São Paulo SP Brazil
| | - Isabela M. Pires
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; 14040-904 São Paulo SP Brazil
| | - Vinícius Pedrazzi
- Department of Dental Materials and Prosthodontics; Faculty of Dentistry of Ribeirão Preto; University of São Paulo; 14040-904 São Paulo SP Brazil
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Gomes JA, Sartori IAM, Able FB, de Oliveira Silva TS, do Nascimento C. Microbiological and clinical outcomes of fixed complete-arch mandibular prostheses supported by immediate implants in individuals with history of chronic periodontitis. Clin Oral Implants Res 2016; 28:734-741. [PMID: 27167329 DOI: 10.1111/clr.12871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2016] [Indexed: 01/09/2023]
Abstract
OBJECTIVES The aim of this study was to assess the microbiological and clinical outcomes of immediate implants placed in chronically infected sockets for rehabilitation with fixed full-arch mandibular prostheses. MATERIAL AND METHODS Fourteen individuals (mean age 60.14 ± 7.69 years) were enrolled in this investigation and followed up until 8 months of function. Microbiological (microbial count and profile) and clinical (probing depth, clinical attachment level, bleeding on probing, and bone resorption) parameters were conducted before teeth extraction (T0 - baseline) and after 4 (T1 ) and 8 (T2 ) months of loading. Thirty-nine microbial species including periodontopathogenic species and Candida spp. were detected and quantified by DNA checkerboard analysis. RESULTS Moderate to high levels of pathogenic and non-pathogenic species were found colonizing teeth and implant-related sites. No significant differences in total or individual microbial counts and microbial profile were found over time (P = 0.4929). Probing depth values from teeth (T0 : 3.05 ± 1.45) were significantly higher when compared with implants (T1 : 1.81 ± 0.56; T2 : 1.66 ± 0.53; P < 0.0001). High percentages of bleeding sites were found for both teeth and implants, with the highest values recorded for teeth (P < 0.05). No significant differences were detected comparing marginal bone resorption over time. CONCLUSIONS Total and individual counts of target species did not differ between teeth and implants for 8 months of investigation. The mean proportions of pathogenic and non-pathogenic species remained unaltered, and no clinical complications were reported over time. Data obtained suggest that immediate loading of complete mandibular prostheses retained by implants placed immediately after extraction may be a viable treatment option for edentulous individuals with previous history of periodontal disease.
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Affiliation(s)
- Jefferson A Gomes
- Latin American Institute of Research and Education in Dentistry, ILAPEO, Curitiba, PR, Brazil
| | - Ivete A M Sartori
- Latin American Institute of Research and Education in Dentistry, ILAPEO, Curitiba, PR, Brazil
| | - Francine B Able
- Latin American Institute of Research and Education in Dentistry, ILAPEO, Curitiba, PR, Brazil
| | - Thalisson S de Oliveira Silva
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Cássio do Nascimento
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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do Nascimento C, Pita MS, Calefi PL, de Oliveira Silva TS, Dos Santos JBS, Pedrazzi V. Different sealing materials preventing the microbial leakage into the screw-retained implant restorations: an in vitro analysis by DNA checkerboard hybridization. Clin Oral Implants Res 2016; 28:242-250. [PMID: 26822400 DOI: 10.1111/clr.12790] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2015] [Indexed: 01/15/2023]
Abstract
OBJECTIVES The aim of this controlled in vitro study was to identify and quantify up to 38 microbial species penetrating through the screw-retained implant prostheses with different sealing materials. MATERIAL AND METHODS Sixty morse cone implants were restored with single-unit screw-retained prostheses. All the components were randomly divided into five groups (n = 12) according to the proposed materials: (1) polytetrafluoroethylene tape+composite resin; (2) polytetrafluoroethylene tape+gutta-percha; (3) polytetrafluoroethylene tape+light-polymerized provisional composite; (4) cotton pellet+gutta-percha; and (5) cotton pellet+light-polymerized provisional composite. Human saliva was used as contaminant media, and DNA checkerboard hybridization was used to identify and quantify microbial species. RESULTS Microbial leakage was observed in all groups: M. salivarium, S. pasteuri, P. nigrescens, and P. melaninogenica were the species presenting the highest values of genome count, prevalence, and proportion within the groups. The total microbial mean counts (×105 , ±SD) were as follows: Group 1 (2.81 ± 0.38), Group 2 (3.41 ± 0.38), Group 3 (6.02 ± 1.48), Group 4 (6.40 ± 1.42), and Group 5 (17.45 ± 1.67). Group 5 showed the higher microbial counts (P < 0.001). CONCLUSIONS Moderate to high counts of pathogenic/nonpathogenic species were detected in the inner parts of implants from all groups. The lowest values of microbial counts were recorded for polytetrafluoroethylene tape associated with composite resin or gutta-percha; cotton pellet associated with light-polymerized provisional composite presented the highest microbial counts.
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Affiliation(s)
- Cássio do Nascimento
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Murillo Sucena Pita
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Paulo Linares Calefi
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Thalisson Saymo de Oliveira Silva
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Juliane Bustamante Sá Dos Santos
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Vinícius Pedrazzi
- Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil
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do Nascimento C, Pita MS, Santos EDS, Monesi N, Pedrazzi V, de Albuquerque Junior RF, Ribeiro RF. Microbiome of titanium and zirconia dental implants abutments. Dent Mater 2016; 32:93-101. [DOI: 10.1016/j.dental.2015.10.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/08/2015] [Accepted: 10/29/2015] [Indexed: 10/22/2022]
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Kuhn K, Rudolph H, Graf M, Moldan M, Zhou S, Udart M, Böhmler A, Luthardt RG. Interaction of titanium, zirconia and lithium disilicate with peri-implant soft tissue: study protocol for a randomized controlled trial. Trials 2015; 16:467. [PMID: 26470711 PMCID: PMC4608119 DOI: 10.1186/s13063-015-0979-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 09/28/2015] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Against the background of increasing use of dental implants, and thus an increasing prevalence of implant-associated complications, a deeper understanding of the biomolecular mechanisms in the peri-implant tissue is needed. Peri-implant soft tissue is in direct contact with transmucosal dental implant abutments. The aim of this trial is to distinguish the biomolecular and histological interactions of various dental abutment materials with peri-implant soft tissue. METHODS/DESIGN The study is designed as a prospective, randomized, investigator-initiated clinical pilot trial with blinded assessment. We will ultimately include 24 eligible patients who opt for implant treatment to replace a single missing posterior tooth. Three months after implantation (submerged procedure), the study begins with the second-stage surgery. Each of the 24 patients will be given three different transmucosal abutments (zirconia, lithium disilicate, titanium) consecutively. The sequence in which the three materials are used is randomized. Peri-implant crevicular fluid is sampled weekly around the respective abutment for biomolecular analyses. After one month of wearing time, the stamping press from the second-stage surgery is used to gain a narrow gingival ring biopsy around the abutment for immunohistochemical analyses. The next abutment is then inserted. The same procedure is used for all three abutments. After sampling is completed, the patients will receive a definitive crown. The primary outcome measure of the trial is biomolecular detection of specific markers in the peri-implant crevicular fluid: matrix metalloproteinase 8, interleukin- 1β, polymorphonuclear elastase, and myeloid-related protein MRP8/14 (calprotectin). Secondary outcome measures include immunohistochemical analyses and clinical parameters. DISCUSSION The study design will allow us to perform correlation analyses between the clinical indices with biomarkers' expression in the interface of the transmucosal abutments and the peri-implant soft tissue. A deeper understanding of the three abutment materials' interactions with peri-implant soft tissue will help us understand the formation mechanisms of implant-associated complications and then develop prevention strategies. TRIAL REGISTRATION The trial is registered at the German Clinical Trial Register and the International Clinical Trials Registry Platform by the WHO under DRKS00006555 (Registered on 27 October 2014).
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Affiliation(s)
- Katharina Kuhn
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Heike Rudolph
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Michael Graf
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Matthias Moldan
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
| | - Shaoxia Zhou
- Department of Clinical Chemistry, Ulm University, Ulm, Germany.
| | - Martin Udart
- Institut für Lasertechnologien in der Medizin und Messtechnik, Ulm University, Ulm, Germany.
| | - Andrea Böhmler
- Institut für Lasertechnologien in der Medizin und Messtechnik, Ulm University, Ulm, Germany.
| | - Ralph G Luthardt
- Department of Prosthetic Dentistry, Center of Dentistry, Ulm University, Ulm, Germany.
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Lops D, Bressan E, Cea N, Sbricoli L, Guazzo R, Scanferla M, Romeo E. Reproducibility of Buccal Gingival Profile Using a Custom Pick-Up Impression Technique: A 2-Year Prospective Multicenter Study. J ESTHET RESTOR DENT 2015; 28:43-55. [DOI: 10.1111/jerd.12171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Diego Lops
- Department of Prosthodontics, Dental Clinic; School of Dentistry University of Milan; Milan Italy
| | - Eriberto Bressan
- Department of Periodontology, School of Dentistry; University of Padova; Padova Italy
| | - Nicolò Cea
- Department of Prosthodontics, Dental Clinic; School of Dentistry University of Milan; Milan Italy
| | - Luca Sbricoli
- Department of Periodontology, School of Dentistry; University of Padova; Padova Italy
| | - Riccardo Guazzo
- Department of Periodontology, School of Dentistry; University of Padova; Padova Italy
| | - Massimo Scanferla
- Department of Prosthodontics, Dental Clinic; School of Dentistry University of Milan; Milan Italy
| | - Eugenio Romeo
- Department of Prosthodontics, Dental Clinic; School of Dentistry University of Milan; Milan Italy
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An investigation of the effect of scaling-induced surface roughness on bacterial adhesion in common fixed dental restorative materials. J Prosthet Dent 2014; 112:1265-70. [DOI: 10.1016/j.prosdent.2014.04.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 04/07/2014] [Accepted: 04/08/2014] [Indexed: 11/17/2022]
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URUSHIBARA Y, OHSHIMA T, SATO M, HAYASHI Y, HAYAKAWA T, MAEDA N, OHKUBO C. An analysis of the biofilms adhered to framework alloys using in vitro denture plaque models. Dent Mater J 2014; 33:402-14. [DOI: 10.4012/dmj.2013-325] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Implications of Surface and Bulk Properties of Abutment Implants and Their Degradation in the Health of Periodontal Tissue. MATERIALS 2013; 6:5951-5966. [PMID: 28788432 PMCID: PMC5452748 DOI: 10.3390/ma6125951] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Revised: 12/04/2013] [Accepted: 12/05/2013] [Indexed: 11/17/2022]
Abstract
The aim of the current review was to investigate the implications of the surface and bulk properties of abutment implants and their degradation in relation to periodontal health. The success of dental implants is no longer a challenge for dentistry. The scientific literature presents several types of implants that are specific for each case. However, in cases of prosthetics components, such as abutments, further research is needed to improve the materials used to avoid bacterial adhesion and enhance contact with epithelial cells. The implanted surfaces of the abutments are composed of chemical elements that may degrade under different temperatures or be damaged by the forces applied onto them. This study showed that the resulting release of such chemical elements could cause inflammation in the periodontal tissue. At the same time, the surface characteristics can be altered, thus favoring biofilm development and further increasing the inflammation. Finally, if not treated, this inflammation can cause the loss of the implant.
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Djordje A, Denis B, Nenadovic M, Petar M, Marija D, Zlatko R. An in vitro atomic force microscopic study of commercially available dental luting materials. Microsc Res Tech 2013; 76:924-30. [DOI: 10.1002/jemt.22249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 05/24/2013] [Accepted: 06/08/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Antonijevic Djordje
- Laboratory for Anthropology; Institute of Anatomy; School of Medicine; University of Belgrade; Belgrade; Serbia
| | - Brajkovic Denis
- Clinic for Dentistry; Faculty of Medical Sciences; University of Kragujevac; Kragujevac; Serbia
| | - Milos Nenadovic
- Laboratory for Atomic Physics; Institute of Nuclear Sciences Vinca, University of Belgrade; Belgrade; Serbia
| | - Milovanovic Petar
- Laboratory for Anthropology; Institute of Anatomy; School of Medicine; University of Belgrade; Belgrade; Serbia
| | - Djuric Marija
- Laboratory for Anthropology; Institute of Anatomy; School of Medicine; University of Belgrade; Belgrade; Serbia
| | - Rakocevic Zlatko
- Laboratory for Atomic Physics; Institute of Nuclear Sciences Vinca, University of Belgrade; Belgrade; Serbia
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