Roehling Stefan, Ghazal Georges, Borer Thomas, Thieringer Florian, Gahlert Michael
Clinic for Oral- and Cranio-Maxillofacial Surgery, Hightech Research Center, University Hospital Basel, University of Basel, Spitalstr. 21, 4031 Basel, Switzerland.
Clinic for Oral- and Cranio-Maxillofacial Surgery, Kantonsspital Aarau, Tellstr., 5001 Aarau, Switzerland.
Dent J (Basel). 2015 Sep 17;3(3):79-92. doi: 10.3390/dj3030079.
Currently, titanium or specific titanium alloys are the most often used materials for the fabrication of dental implants. Many studies have confirmed the osseointegrative capacity and clinical long-term performance of moderately rough titanium implants. However, disadvantages have also been reported with regard to peri-implant infections and the titanium metal properties. Tooth colored ceramic implants have attracted the interest of clinicians since the end of the 1960s. Initially, alumina was used for the fabrication of ceramic implants; however, due to the poor biomechanical properties, alumina implants are not commercially available any more. Since end of the 1990s, zirconia has been established in dentistry due to its superior biomechanical properties compared to other oxide ceramics such as alumina. Currently, zirconia is the material of choice for the fabrication of ceramic implants. Zirconia implants show superior biocompatibility compared to titanium and other metals. Additionally, it has been reported that zirconia implants with a micro-rough surface topography show at least a comparable osseointegrative capacity and similar clinical survival rates to moderately rough titanium implants. The present case reports a fixed implant-supported reconstruction of a large edentulous space with compromised local bone conditions using new monotype zirconia dental implants with a micro-rough surface topography.
目前，钛或特定的钛合金是制造牙种植体最常用的材料。许多研究已经证实了中等粗糙度钛种植体的骨结合能力和临床长期性能。然而，关于种植体周围感染和钛金属特性也有相关缺点的报道。自20世纪60年代末以来，牙齿颜色的陶瓷种植体引起了临床医生的关注。最初，氧化铝被用于制造陶瓷种植体；然而，由于其生物力学性能较差，氧化铝种植体已不再商业化供应。自20世纪90年代末以来，由于氧化锆与其他氧化物陶瓷（如氧化铝）相比具有优越的生物力学性能，它已在牙科领域确立了地位。目前，氧化锆是制造陶瓷种植体的首选材料。与钛和其他金属相比，氧化锆种植体表现出优越的生物相容性。此外，有报道称，具有微粗糙表面形貌的氧化锆种植体显示出至少与中等粗糙度钛种植体相当的骨结合能力和相似的临床存活率。本病例报告了使用具有微粗糙表面形貌的新型单型氧化锆牙种植体对局部骨条件受损的大无牙间隙进行固定种植体支持的修复。
