A new testing protocol for zirconia dental implants

被引:86
作者
Sanon, Clarisse [1 ,2 ]
Chevalier, Jerome [1 ,3 ]
Douillard, Thierry [1 ]
Cattani-Lorente, Maria [4 ]
Scherrer, Susanne S. [4 ]
Gremillard, Laurent [1 ]
机构
[1] INSA Lyon, UMR CNRS MATEIS 5510, 7 Ave Jean Capelle, F-69621 Villeurbanne, France
[2] Univ Lyon 1, Fac Odontol, Dept Biomat, F-69372 Lyon 08, France
[3] Inst Univ France, F-75005 Paris, France
[4] Univ Geneva, Sch Dent Med, Dept Prosthodont Biomat, CH-1205 Geneva, Switzerland
关键词
Zirconia; Implants; Phase transformation; Fracture; Surface; Aging; LOW-TEMPERATURE DEGRADATION; TITANIUM; CERAMICS; MAXILLA;
D O I
10.1016/j.dental.2014.09.002
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objectives. Based on the current lack of standards concerning zirconia dental implants, we aim at developing a protocol to validate their functionality and safety prior their clinical use. The protocol is designed to account for the specific brittle nature of ceramics and the specific behavior of zirconia in terms of phase transformation. Methods. Several types of zirconia dental implants with different surface textures (porous, alveolar, rough) were assessed. The implants were first characterized in their as-received state by Scanning Electron Microscopy (SEM), Focused Ion Beam (FIB), X-Ray Diffraction (XRD). Fracture tests following a method adapted from ISO 14801 were conducted to evaluate their initial mechanical properties. Accelerated aging was performed on the implants, and XRD monoclinic content measured directly at their surface instead of using polished samples as in ISO 13356. The implants were then characterized again after aging. Results. Implants with an alveolar surface presented large defects. The protocol shows that such defects compromise the long-term mechanical properties. Implants with a porous surface exhibited sufficient strength but a significant sensitivity to aging. Even if associated to micro cracking clearly observed by FIB, aging did not decrease mechanical strength of the implants. Signcance. As each dental implant company has its own process, all zirconia implants may behave differently, even if the starting powder is the same. Especially, surface modifications have a large influence on strength and aging resistance, which is not taken into account by the current standards. Protocols adapted from this work could be useful. (C) 2014 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:15 / 25
页数:11
相关论文
共 30 条
[1]   Are ceramic implants a viable alternative to titanium implants? A systematic literature review [J].
Andreiotelli, Marina ;
Wenz, Hans J. ;
Kohal, Ralf-Joachim .
CLINICAL ORAL IMPLANTS RESEARCH, 2009, 20 :32-47
[2]  
Babbush CA., 2011, Dental implants: The Art and Science, V2nd
[3]   OSSEOINTEGRATION AND ITS EXPERIMENTAL BACKGROUND [J].
BRANEMARK, PI .
JOURNAL OF PROSTHETIC DENTISTRY, 1983, 50 (03) :399-410
[4]  
Chevalier J, 2000, ADV MATER, V12, P1619, DOI 10.1002/1521-4095(200011)12:21<1619::AID-ADMA1619>3.0.CO
[5]  
2-O
[6]   Low-temperature degradation in zirconia with a porous surface [J].
Chevalier, Jerome ;
Loh, Joel ;
Gremillard, Laurent ;
Meille, Sylvain ;
Adolfson, Erik .
ACTA BIOMATERIALIA, 2011, 7 (07) :2986-2993
[7]   The Tetragonal-Monoclinic Transformation in Zirconia: Lessons Learned and Future Trends [J].
Chevalier, Jerome ;
Gremillard, Laurent ;
Virkar, Anil V. ;
Clarke, David R. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2009, 92 (09) :1901-1920
[8]   Osseointegration of zirconia implants compared with titanium: An in vivo study [J].
Depprich R. ;
Zipprich H. ;
Ommerborn M. ;
Naujoks C. ;
Wiesmann H.-P. ;
Kiattavorncharoen S. ;
Lauer H.-C. ;
Meyer U. ;
Kübler N.R. ;
Handschel J. .
Head & Face Medicine, 4 (1)
[9]   Influence of surface finish and residual stresses on the ageing sensitivity of biomedical grade zirconia [J].
Deville, S ;
Chevalier, J ;
Gremillard, L .
BIOMATERIALS, 2006, 27 (10) :2186-2192
[10]   THE USE OF A ZIRCONIA CUSTOM IMPLANT-SUPPORTED FIXED PARTIAL DENTURE PROSTHESIS TO TREAT IMPLANT FAILURE IN THE ANTERIOR MAXILLA: A CLINICAL REPORT [J].
Dunn, David B. .
JOURNAL OF PROSTHETIC DENTISTRY, 2008, 100 (06) :415-421