Boudrias P, Hutnik P
Department of Restorative Dentistry, Université de Montréal, Montreal, Quebec, Canada.
J Can Dent Assoc. 2001 Oct;67(9):508-14.
A single implant-supported restoration is one treatment alternative to consider for the replacement of a missing tooth. Technological advances in materials and machining have led to the development of a densely sintered aluminum oxide ceramic abutment, designed and machined using CAD/CAM technology. This manufacturing method improves management of the subgingival depth of the crown/abutment interface and enhances the esthetic qualities of the restoration. However, since this ceramic abutment has less mechanical resistance than metal abutments, its use should be confined to the restoration of incisors and premolars not subjected to excessive occlusal forces.
单颗种植体支持的修复体是缺失牙替代治疗可考虑的一种选择。材料和加工技术的进步促使了一种采用CAD/CAM技术设计和加工的高密度烧结氧化铝陶瓷基台的发展。这种制造方法改善了牙冠/基台界面龈下深度的管理,并提高了修复体的美学质量。然而,由于这种陶瓷基台的机械抗力比金属基台小,其应用应限于不受过大咬合力影响的切牙和前磨牙的修复。