平台转换技术对上颌前牙区单枚种植修复影响的临床观察

目的：评估应用平台转换技术对上颌前牙区单枚种植修复的影响,探讨该技术的临床应用效果。方法：选择45例上颌前牙区单颗牙缺失患者,随机分为三组,A组为对照组,植入种植体与基台平台对接设计的3i种植体,B、C组为实验组,分别植入具有光滑斜面平台转换技术的Osstem GSⅡ种植体及具有粗糙水平平台转换技术的Ankylos种植体。负载12个月后测量种植体周骨高度丧失量并评价软组织情况。结果：与A组比较,B、C组种植体周围边缘骨丧失量及软组织情况差异均有高度显著性（p〈0.01）,B、C组间相比差异无显著性（p〉0.05）。结论：平台转换设计有利于减少种植体颈部骨丧失、增进前牙种植修复美学效果,其远期效果可期。

Effect of platform-switching technique on single dental implant restoration in the anterior maxilla:a clinical observation

Objects:To evaluate the influences of platform switching technique on both hard and soft tissues of single implant in esthetic zone and explore the clinical effect of this technique with the aim of providing guidance for clinical work.Methods:45 patients who were partially edentulous in esthetic zone were randomly divided into 3 groups,with 15 patients in each.3i implants with the platform butt-joint technique were placed in patients of group A.Osstem GS II implants with the smooth slop platform switching t...