Implant-abutment microgap (IAM) exists in two-piece implant systems. Researchers have proved that IAM influences success rate of dental implants in the long term. The relationship between IAM and the biological, mechanical complication of dental implants has been proven in some studies. Implant-abutment connection type, abutment material and insertion torque may all have impact on IAM size. On the other hand, ways to reduce or seal this gap are discussed in some literature. The relationship between IAM and bacteria colonization, long-term implantation complication and its influencing factors are discussed in this review.
两段式种植系统存在种植体-基台微间隙，近年研究显示，种植体-基台微间隙的存在与种植修复的远期生物和机械并发症相关。种植体-基台的连接方式、基台材料、旋入扭矩均可影响微间隙大小。本文就种植体-基台微间隙与细菌定植的关系、对种植修复远期并发症的影响以及减小或消除种植体-基台微间隙的研究进展进行综述。.
Keywords: Dental abutments; Dental implants; Microgap; Review.