Igarashi Kensuke, Nakahara Ken, Haga-Tsujimura Maiko, Kobayashi Eizaburo, Watanabe Fumihiko
Department of Crown and Bridge Prosthodontics, The Nippon Dental University School of Life Dentistry at Niigata.
Dent Mater J. 2015;34(5):692-701. doi: 10.4012/dmj.2014-361.
The aim of this study was to assess hard and soft tissue responses using three dental implants made of different materials. Implants made of titanium (Ti), yttria-stabilized tetragonal zirconia polycrystals (Y-TZP) and ceria partially stabilized zirconia/alumina nanocomposite (Ce-TZP/Al2O3) were used in a dog model. Five male beagles were sacrificed at three months after implantation, and harvested mandible were observed and analyzed. Histological observations were similar in all groups. There were no significant differences in any histomorphometric parameters. Our results suggested the possibility of Ce-TZP/Al2O3 as a dental implant material, similar to Ti and Y-TZP.
本研究的目的是使用三种由不同材料制成的牙科植入物来评估软硬组织反应。在犬模型中使用了由钛（Ti）、钇稳定四方氧化锆多晶体（Y-TZP）和二氧化铈部分稳定的氧化锆/氧化铝纳米复合材料（Ce-TZP/Al2O3）制成的植入物。五只雄性比格犬在植入后三个月被处死，对获取的下颌骨进行观察和分析。所有组的组织学观察结果相似。在任何组织形态计量学参数上均无显著差异。我们的结果表明，Ce-TZP/Al2O3作为一种牙科植入材料具有可能性，类似于Ti和Y-TZP。
