Publication: Osseointegration of zirconia implants compared with titanium: An in vivo study
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Issued Date
2008-12-01
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ISSN
1746160X
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2-s2.0-58149310756
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Mahidol University
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SCOPUS
Bibliographic Citation
Head and Face Medicine. Vol.4, No.1 (2008)
Suggested Citation
Rita Depprich, Holger Zipprich, Michelle Ommerborn, Christian Naujoks, Hans Peter Wiesmann, Sirichai Kiattavorncharoen, Hans Christoph Lauer, Ulrich Meyer, Norbert R. Kübler, Jörg Handschel Osseointegration of zirconia implants compared with titanium: An in vivo study. Head and Face Medicine. Vol.4, No.1 (2008). doi:10.1186/1746-160X-4-30 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/19156
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Title
Osseointegration of zirconia implants compared with titanium: An in vivo study
Abstract
Background. Titanium and titanium alloys are widely used for fabrication of dental implants. Since the material composition and the surface topography of a biomaterial play a fundamental role in osseointegration, various chemical and physical surface modifications have been developed to improve osseous healing. Zirconia-based implants were introduced into dental implantology as an altenative to titanium implants. Zirconia seems to be a suitable implant material because of its tooth-like colour, its mechanical properties and its biocompatibility. As the osseointegration of zirconia implants has not been extensively investigated, the aim of this study was to compare the osseous healing of zirconia implants with titanium implants which have a roughened surface but otherwise similar implant geometries. Methods. Forty-eight zirconia and titanium implants were introduced into the tibia of 12 minipigs. After 1, 4 or 12 weeks, animals were sacrificed and specimens containing the implants were examined in terms of histological and ultrastructural techniques. Results. Histological results showed direct bone contact on the zirconia and titanium surfaces. Bone implant contact as measured by histomorphometry was slightly better on titanium than on zirconia surfaces. However, a statistically significant difference between the two groups was not observed. Conclusion. The results demonstrated that zirconia implants with modified surfaces result in an osseointegration which is comparable with that of titanium implants. © 2008 Depprich et al; licensee BioMed Central Ltd.