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Müller F, Al-Nawas B, Storelli S, Quirynen M, Hicklin S, Castro-Laza J, Bassetti M, Srinivasan M. Small-diameter titanium grade IV and titanium-zirconium implants in edentulous mandibles: Ten-year results from a double-blind, randomised controlled split-mouth core-trial. Clin Oral Implants Res 2024; 35:77-88. [PMID: 37942666 DOI: 10.1111/clr.14199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/11/2023] [Accepted: 10/18/2023] [Indexed: 11/10/2023]
Abstract
The goal of this extension study was to compare the 10-year outcome of 3.3 mm diameter titanium-zirconium (TiZr) or grade IV titanium (Ti) implants in mandibular implant-overdentures. MATERIALS AND METHODS This study is the 10-year follow-up from a randomised, controlled, double-blind, split-mouth multicentre clinical trial. Patients with edentulous mandibles had received two implants in the interforaminal region (bone-level, diameter 3.3 mm, microrough surface), one of TiZr (test) and one of Ti (control). Implant survival and success, plaque and sulcus bleeding indices, probing pocket depth, gingival margin, clinical attachment level and radiographic crestal bone levels were evaluated. RESULTS Fifty of 91 patients with implants were available for the 10-year examination and 36 patients were valid for the intent-to-treat (ITT) analysis. The implant success rate was calculated as 94.6% and 91.9% for the TiZr implants and the Ti implants respectively. Four implants were lost (TiZr = 1; Ti = 3) in the entire study period. Kaplan-Meier survival analyses estimated 10- year implant survival rate for TiZr to 98.9% and Ti 95.8%.The mean of total and functional crestal bone loss was 1.49 mm (±1.37 mm) and 0.82 mm (±1.09 mm) in the TiZr group and 1.56 mm (±1.34 mm) and 0.85 mm (±1.16 mm) in the Ti group. CONCLUSIONS This split-mouth design RCT on mandibular implant-overdentures evidenced, bearing in mind its follow-up time-related reduced cohort size, high 10-year implant success- and survival rates. These results confirm TiZr as well-suited implant material for realising small-diameter implants. Registered on www. CLINICALTRIALS gov: NCT01878331.
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Affiliation(s)
- Frauke Müller
- Division of Gerodontology and Removable Prosthodontics, University of Geneva, Geneva, Switzerland
| | | | - Stefano Storelli
- Dental Clinic, San Paolo Hospital, University of Milan, Milan, Italy
| | - Marc Quirynen
- School of Dentistry, Catholic University Leuven, Leuven, Belgium
| | - Stefan Hicklin
- Clinic of Preventive Dentistry, Periodontology and Cariology, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
- Clinic of General, Special Care and Geriatric Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | | | - Mario Bassetti
- Clinic for Oral and Maxillofacial Surgery, Cantonal Hospital Lucerne, Lucerne, Switzerland
| | - Murali Srinivasan
- Division of Gerodontology and Removable Prosthodontics, University of Geneva, Geneva, Switzerland
- Clinic of General, Special Care and Geriatric Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
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Özmeriç N, Çakal GÖ, Gökmenoğlu C, Özmeriç A, Oduncuoğlu BF, Hacaloğlu T, Kaftanoğlu B. Histomorphometric and biomechanical evaluation of the osseointegration around micro- and nano-level boron-nitride coated titanium dental implants. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e694-e700. [PMID: 35724866 DOI: 10.1016/j.jormas.2022.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/08/2022] [Accepted: 06/16/2022] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Titanium dental implants has been coated with different materials such as polymers and biomimetic agents, bone morphogenetic protein, calcium phosphate to enhance surface properties of the titanium implants for osseointegration. The aim of this study was to evaluate the bone tissue healing around Boron Nitride-coated (BN-coated) titanium implants histomorphometrically and biomechanically and also observe the effect of different coating thicknesses on osseointegration. MATERIALS AND METHODS BN was coated on dental titanium implants with two different coating thicknesses by using RF magnetron sputtering system. Totally fifty-four implants were inserted into the tibias' of 12 New Zealand rabbits bilaterally under general anesthesia. All animals were sacrificed after 4-weeks. Bone-implant contact (BIC) and new bone area/total area ratios (BATA) were calculated. Also, the removal torque (RT) test was performed. RESULTS The highest new bone area in the medullary cavity was around the nano-BN-coated surface with 15.70%. In micro-BN-coated surface and control group, this ratio was determined as 10.48% and 8.23%, respectively. The BIC ratios in upper-side of implants and cortical-associated BIC ratios in lower-side were found significantly higher in control and micro-BN-coated group than nano-BN-coated group (p < 0.05). Similar BIC values were observed between control and micro-BN-coated groups (p > 0.05). BATA values did not show statistically significant differences between all three groups (p > 0.05). The RT values measured in all groups were found comparable and no statistically significant differences were found (p > 0.05). CONCLUSION No inflammatory reaction developed around any implant. Relatively more new bone formation around nano-BN-coated titanium implants indicates the promising osseoinductive effect of BN coating. BN-coated implants showed similar biomechanical and histomorphometrical outcomes to that of the conventional titanium implants through a 4-week evaluation period.
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Affiliation(s)
- Nurdan Özmeriç
- Department of Periodontology, Faculty of Dentistry, Gazi University, Bişkek Caddesi, 06510 Ankara, Turkey
| | - Gaye Özgür Çakal
- Institute of Nuclear Sciences, Ankara University, Tandoğan Campus, 06100 Ankara, Turkey
| | - Ceren Gökmenoğlu
- Department of Periodontology, Faculty of Dentistry, Ordu University, 52100, Ordu, Turkey.
| | - Ahmet Özmeriç
- Department of Orthopedics and Traumatology, SBU Ankara Training and Research Hospital, 06340 Ankara, Turkey
| | - Bahar Füsun Oduncuoğlu
- Department of Periodontology, Faculty of Dentistry, Baskent University, 06590 Ankara, Turkey
| | - Tuğçe Hacaloğlu
- Department of Manufacturing Engineering, Atilim University, Kizilcasar Mah 06836 Ankara, Turkey
| | - Bilgin Kaftanoğlu
- Department of Manufacturing Engineering, Atilim University, Kizilcasar Mah 06836 Ankara, Turkey
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Hultin K, Eriksson A, Backe C, Johansson U, Bougas K. A Pilot Study with Randomised Controlled Design Comparing TiZr Alloy Dental Implants to Ti Implants. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2020; 11:e3. [PMID: 33598111 PMCID: PMC7875101 DOI: 10.5037/jomr.2020.11403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/28/2020] [Indexed: 11/16/2022]
Abstract
Objectives Evidence on the clinical performance of recently introduced dental implants in titanium-zirconium alloy is sparse. The aim of the present pilot study with randomized controlled design is to compare changes in supporting structures around dental titanium-zirconium alloy implants to commercially pure titanium implants. Material and Methods The present material includes consecutive patients referred to a specialist clinic in Sweden. Two patient groups treated with dental implants in two different materials - titanium (Ti) and titanium-zirconium (TiZr) - were defined after block randomisation for smoking. In total, 40 implants installed in 21 patients were available for one-year follow-up. Marginal bone level, soft tissue height and width of keratinised mucosa were registered at baseline and at one-year follow-up. Results At implant level, the test group (TiZr) yielded significant marginal bone loss (P < 0.001) after one year. Additionally, marginal bone loss after one year was significantly higher for TiZr implants (P < 0.001) as compared to traditional Ti implants. Soft tissue dimensions were stable throughout the evaluation time for both implant materials. Conclusions One-year results indicate more pronounced initial marginal bone loss for dental implants in titanium-zirconium alloy as compared to implants made of commercially pure titanium.
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Affiliation(s)
- Kristina Hultin
- Department of Prosthodontics, Södra Älvsborg Hospital, BoråsSweden
| | - Annelie Eriksson
- Department of Oral and Maxillofacial Surgery, Södra Älvsborg Hospital, BoråsSweden
| | - Christina Backe
- Department of Oral and Maxillofacial Surgery, Södra Älvsborg Hospital, BoråsSweden
| | - Ulf Johansson
- Department of Oral and Maxillofacial Surgery, Södra Älvsborg Hospital, BoråsSweden
| | - Kostas Bougas
- Department of Periodontology, Södra Älvsborg Hospital, BoråsSweden
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The Trends of TiZr Alloy Research as a Viable Alternative for Ti and Ti16 Zr Roxolid Dental Implants. COATINGS 2020. [DOI: 10.3390/coatings10040422] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Despite many discussions about Ti versus Zr, Ti remains the golden standard for dental implants. With the extended use of implants, their rejection in peri-implantitis due to material properties is going to be an important part of oral health problems. Extended use of implants leading to a statistical increase in implant rejection associated with peri-implantitis raises concerns in selecting better implant materials. In this context, starting in the last decade, investigation and use of TiZr alloys as alternatives for Ti in oral dentistry became increasingly more viable. Based on existing new results for Ti16Zr (Roxolid) implants and Ti50Zr alloy behaviour in oral environments, this paper presents the trends of research concerning the electrochemical stability, mechanical, and biological properties of this alloy with treated and untreated surfaces. The surface treatments were mostly performed by anodizing the alloy in various conditions as a non-sophisticated and cheap procedure, leading to nanostructures such as nanopores and nanotubes. The drug loading and release from nanostructured Ti50Zr as an important perspective in oral implant applications is discussed and promoted as well.
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Araki H, Nakano T, Ono S, Yatani H. Three-dimensional finite element analysis of extra short implants focusing on implant designs and materials. Int J Implant Dent 2020; 6:5. [PMID: 31993827 PMCID: PMC6987289 DOI: 10.1186/s40729-019-0202-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/11/2019] [Indexed: 12/24/2022] Open
Abstract
AIM When using short implants, fracture of the implant body and bone resorption are a concern because stress concentrates on and around a short implant. The purpose of this research is to investigate the differences in stress distribution between tissue level (TL) and bone level (BL) implant body designs, and between commercially pure titanium (cpTi) and the newer titanium-zirconium (TiZr) alloy in using short implants. MATERIALS AND METHODS Models of TL and BL implants were prepared for three-dimensional finite element analysis. The implants were produced in 10 mm, 8 mm, and 6 mm lengths, and the TL was also produced in a 4-mm length. A static load of 100 N inclined at 30° to the long axis was applied to the buccal side of the model. The largest maximum principal stress value in the cortical bone and the largest von Mises stress value in the implant body were evaluated. RESULTS Stress concentration was observed at the connection part of the implant, especially above the bone in TL and within the bone in BL. In the TL design, tensile stress occurred on the buccal side and compressive stress on the lingual side of the cortical bone. Conversely, in the BL design, tensile stress occurred on the lingual side of the cortical bone. CpTi and TiZr showed a similar stress distribution pattern. The maximum stress values were lower in the TL design than the BL design, and they were lower with TiZr than cpTi for both the cortical bone and implant body. The maximum value tended to increase as the length of the implant body decreased. In addition, the implant body design was more influential than its length, with the TL design showing a stress value similar to the longer BL design. CONCLUSION Using TiZr and a TL design may be more useful mechanically than cpTi and a BL design when the length of the implant body must be shorter because of insufficient vertical bone mass in the mandible.
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Affiliation(s)
- Haruka Araki
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
| | - Tamaki Nakano
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan.
| | - Shinji Ono
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
| | - Hirofumi Yatani
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, 565-0871, Japan
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Chen X, Chen Y, Shen J, Xu J, Zhu L, Gu X, He F, Wang H. Positive modulation of osteogenesis on a titanium oxide surface incorporating strontium oxide: An in vitro and in vivo study. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:710-718. [PMID: 30889744 DOI: 10.1016/j.msec.2019.02.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 01/15/2019] [Accepted: 02/04/2019] [Indexed: 02/06/2023]
Abstract
Surface chemistry and topography can determinatively affect the osseointegration of dental implants. Strontium (Sr) has a significant effect on the promotion of bone formation and inhibitation of bone resorption. The emphasis of this study lies on the evaluation of a new surface treatment that aims to improve the early osseointegration of dental implantation both in vitro and in vivo. A hydrothermal method was used to prepare an SrTiO3 incorporation on sandblasted large-grit double acid-etched (SLA) titanium surfaces in SrCl2 solution. The composition and morphology of the SrTiO3 doped surface were analyzed by X-ray diffraction, X-ray photoelectron spectroscopy,and scanning electron microscopy. In addition, the external release figure of Sr was examined by inductively coupled plasma mass spectrometry. The proliferation, adhesion and differentiation of MC3T3-E1 cells on this surface were evaluated in vitro and presented a significant increase in SLA-Sr group compared with that in SLA group. An in vivo study in 24 New Zealand rabbits indicated a remarkable growth in the volume of direct bone-to-implant contact and peri-implant bone in SLA-Sr group, which were compared with SLA group after 3 and 6 weeks, and removal torque tests exhibited a higher torque removal value of SLA-Sr implants. The study gave the result that the biological effect of SLA-Sr implants was significantly superior to that of the SLA implants at the early stage of osseointegration.
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Affiliation(s)
- Xiaoyi Chen
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Yun Chen
- Department of oral Implantology, Xiamen Stomatology Hospital, Xiamen 361003, China
| | - Jianwei Shen
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Junhua Xu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Liqin Zhu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Xinhua Gu
- Oral Medical Center, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China
| | - Fuming He
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
| | - Huiming Wang
- Department of Oral Implantology, The Affiliated Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou 310006, China.
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Chappuis V, Maestre L, Bürki A, Barré S, Buser D, Zysset P, Bosshardt D. Osseointegration of ultrafine-grained titanium with a hydrophilic nano-patterned surface: an in vivo examination in miniature pigs. Biomater Sci 2018; 6:2448-2459. [PMID: 30065987 DOI: 10.1039/c8bm00671g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Advances in biomaterials science and implant surface technology have made dental implants more predictable and implant therapy more attractive to patients. Surgical interventions are becoming less invasive, and patients heal faster and suffer less morbidity. In this preclinical in vivo study, we compared a new ultra-fine grained titanium (ufgTi) implant material with a hydrophilic nano-patterned surface to commercially pure titanium (cpTi) in a well-established animal model. CpTi grade 4 was subjected to Equal Channel Angular Pressing (ECAP), followed by a cold drawing process that provided ultra-fine-grained titanium (ufgTi) with a mean grain size of 300 nm. After metallographic assessment, the surface topography was characterized by laser confocal microscopy and atomic force microscopy. UfgTi and cpTi implants were inserted in the mandible and maxilla of miniature pigs that healed for 4 and for 8 weeks. Osseointegration was assessed by biomechanical torque out analysis, histomorphometric evaluation, and micro-CT analysis. The metallographic properties of UfgTi were significantly better than those of cpTi. Their surface topographies had similar hydrophilic nano-patterned characteristics, with no significant differences in the nanometre range. Histomorphometric and biomechanical torque out analysis revealed no significant differences between ufgTi and cpTi in environments of either low (maxilla) or high (mandible) bone density. We obtained high bone-to-implant contact values irrespective of the bony microarchitecture even when the bone mineral density was low. Overall, this investigation suggests that ufgTi forms a hydrophilic nano-patterned surface with superior metallographic properties compared to cpTi and high levels of osseointegration. Thus, ufgTi has therapeutic potential as a future strategy for the development of small diameter implants to enable less invasive treatment concepts, reduce patient morbidity and may also lower the costs of patient care.
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Affiliation(s)
- Vivianne Chappuis
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, 3010 Bern, Switzerland.
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Cruz RS, Lemos CAA, Oliveira HFF, de Souza Batista VE, Pellizzer EP, Verri FR. Comparison of the Use of Titanium–Zirconium Alloy and Titanium Alloy in Dental Implants: A Systematic Review and Meta-Analysis. J ORAL IMPLANTOL 2018; 44:305-312. [DOI: 10.1563/aaid-joi-d-17-00233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to compare the values of bone-implant contact (BIC) and removal torque (RTQ) reported in different animal studies for titanium–zirconium (TiZr) and titanium (Ti) dental implants. This review has been registered at PROSPERO under number CRD42016047745. We undertook an electronic search for data published up until November 2017 using the PubMed/Medline, Embase, and The Cochrane Library databases. Eligibility criteria included in vivo studies, comparisons between Ti and TiZr implants in the same study, and studies published in English that evaluated BIC and RTQ. After inclusion criteria, 8 studies were assessed for eligibility. Of the 8 studies, 7 analyzed BIC outcome and 3 analyzed RTQ outcome. Among such studies, 6 studies were considered for meta-analysis of quantitative for BIC and 2 studies for RTQ. There was no significant difference for BIC analysis (P = .89; random ration [RR]: −0.21; 95% confidence interval [CI]: −3.14 to 2.72). The heterogeneity of the primary outcome studies was considered low (7.19; P = .21; I2: 30%). However, the RTQ analysis showed different results favoring the TiZr dental implants (P = .001; RR: 23.62; 95%CI: 9.15 to 38.10). Low heterogeneity was observed for RTQ (χ2: 1.25; P = .26; I2: 20%). Within the limitations of this study, there was no difference between TiZr and Ti alloys implants in terms of BIC. However, TiZr implants had higher RTQ than Ti alloys.
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Affiliation(s)
- Ronaldo Silva Cruz
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Cleidiel Aparecido Araujo Lemos
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Hiskell Francine Fernandes Oliveira
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Victor Eduardo de Souza Batista
- Department of Prosthodontics, Presidente Prudente Dental School, University of Western São Paulo - UNOESTE, Presidente Prudente, Brazil
| | - Eduardo Piza Pellizzer
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
| | - Fellippo Ramos Verri
- Department of Dental Materials and Prosthodontics, Aracatuba Dental School, UNESP – Univ Estadual Paulista, Aracatuba Dental School, Sao Paulo, Brazil
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Shah FA, Jergéus E, Chiba A, Palmquist A. Osseointegration of 3D printed microalloyed CoCr implants-Addition of 0.04% Zr to CoCr does not alter bone material properties. J Biomed Mater Res A 2018; 106:1655-1663. [DOI: 10.1002/jbm.a.36366] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/31/2018] [Accepted: 02/06/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Furqan A. Shah
- Department of Biomaterials; Sahlgrenska Academy at University of Gothenburg; Göteborg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Göteborg Sweden
| | - Edvin Jergéus
- Department of Biomaterials; Sahlgrenska Academy at University of Gothenburg; Göteborg Sweden
| | - Akihiko Chiba
- Institute for Materials Research, Tohoku University; Sendai Japan
| | - Anders Palmquist
- Department of Biomaterials; Sahlgrenska Academy at University of Gothenburg; Göteborg Sweden
- BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy; Göteborg Sweden
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Medvedev AE, Molotnikov A, Lapovok R, Zeller R, Berner S, Habersetzer P, Dalla Torre F. Microstructure and mechanical properties of Ti–15Zr alloy used as dental implant material. J Mech Behav Biomed Mater 2016; 62:384-398. [DOI: 10.1016/j.jmbbm.2016.05.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 05/02/2016] [Accepted: 05/04/2016] [Indexed: 02/01/2023]
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Galli S, Jimbo R, Naito Y, Berner S, Dard M, Wennerberg A. Chemically modified titanium-zirconium implants in comparison with commercially pure titanium controls stimulate the early molecular pathways of bone healing. Clin Oral Implants Res 2016; 28:1234-1240. [DOI: 10.1111/clr.12947] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/16/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Silvia Galli
- Department of Prosthodontics; Faculty of Odontology; Malmö University; Malmö Sweden
| | - Ryo Jimbo
- Department of Prosthodontics; Faculty of Odontology; Malmö University; Malmö Sweden
- Department of Oral and Maxillofacial Surgery and Oral Medicine; Faculty of Odontology; Malmö University; Malmö Sweden
| | - Yoshihito Naito
- Oral Implant Center; Tokushima University Hospital; Tokushima Japan
| | | | - Michel Dard
- Institut Straumann AG; Basel Switzerland
- College of Dentistry; New York University; New York NY USA
| | - Ann Wennerberg
- Department of Prosthodontics; Faculty of Odontology; Malmö University; Malmö Sweden
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12
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Feng SW, Ho KN, Chan YH, Chang KJ, Lai WY, Huang HM. Damping Factor as a Diagnostic Parameter for Assessment of Osseointegration during the Dental Implant Healing Process: An Experimental Study in Rabbits. Ann Biomed Eng 2016; 44:3668-3678. [DOI: 10.1007/s10439-016-1675-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/07/2016] [Indexed: 11/30/2022]
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Wen B, Chen J, Dard M, Cai Z. The Performance of Titanium-Zirconium Implants in the Elderly: A Biomechanical Comparative Study in the Minipig. Clin Implant Dent Relat Res 2016; 18:1200-1209. [PMID: 26834004 DOI: 10.1111/cid.12389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 12/03/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Bo Wen
- Professor, Division of Implant Dentistry, Department of Oral & Maxillofacial Surgery, Nanjing Stomatology Hospital; Medical School of Nanjing University; Nanjing China
| | - Jiang Chen
- professor, Department of Implant Dentistry, School and Hospital of Stomatology; Fujian Medical University; Fuzhou China
| | - Michel Dard
- head and director, Preclinical Research; Institut Straumann AG; Basel Switzerland
- professor, Department of Periodontology and Implant Dentistry; College of Dentistry, New York University; New York NY USA
| | - Zhiyu Cai
- professor, Department of Implant Dentistry, School and Hospital of Stomatology; Fujian Medical University; Fuzhou China
- associate professor, Department of Stomatology; Fujian Medical University Union Hospital; Fuzhou China
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14
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Shah FA, Trobos M, Thomsen P, Palmquist A. Commercially pure titanium (cp-Ti) versus titanium alloy (Ti6Al4V) materials as bone anchored implants - Is one truly better than the other? MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:960-6. [PMID: 26952502 DOI: 10.1016/j.msec.2016.01.032] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 12/10/2015] [Accepted: 01/14/2016] [Indexed: 01/17/2023]
Abstract
Commercially pure titanium (cp-Ti) and titanium alloys (typically Ti6Al4V) display excellent corrosion resistance and biocompatibility. Although the chemical composition and topography are considered important, the mechanical properties of the material and the loading conditions in the host have, conventionally, influenced material selection for different clinical applications: predominantly Ti6Al4V in orthopaedics while cp-Ti in dentistry. This paper attempts to address three important questions: (i) To what extent do the surface properties differ when cp-Ti and Ti6Al4V materials are manufactured with the same processing technique?, (ii) Does bone tissue respond differently to the two materials, and (iii) Do bacteria responsible for causing biomaterial-associated infections respond differently to the two materials? It is concluded that: (i) Machined cp-Ti and Ti6Al4V exhibit similar surface morphology, topography, phase composition and chemistry, (ii) Under experimental conditions, cp-Ti and Ti6Al4V demonstrate similar osseointegration and biomechanical anchorage, and (iii) Experiments in vitro fail to disclose differences between cp-Ti and Ti6Al4V to harbour Staphylococcus epidermidis growth. No clinical comparative studies exist which could determine if long-term, clinical differences exist between the two types of bulk materials. It is debatable whether cp-Ti or Ti6Al4V exhibit superiority over the other, and further comparative studies, particularly in a clinical setting, are required.
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Affiliation(s)
- Furqan A Shah
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden.
| | - Margarita Trobos
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
| | - Peter Thomsen
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
| | - Anders Palmquist
- Department of Biomaterials, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Göteborg, Sweden; BIOMATCELL VINN Excellence Center of Biomaterials and Cell Therapy, Göteborg, Sweden
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