摘要
目的：观察桩核冠修复后牙不同缺损程度残冠的疗效。方法：根据牙冠缺损程度（残存洞壁数）将后牙残冠分为4类,随访观察226个后牙残冠桩核冠修复的疗效。结果：226个后牙残冠治疗后,随访观察3~7年,随访到201个,其中成功190个（成功率94.5%）,失败11个;在4类缺损后牙残冠中,缺损3洞壁的Ⅲ类残冠成功率（83.9%）明显低于缺损1、2和4洞壁的Ⅰ、Ⅱ、Ⅳ类残冠;在Ⅲ类残冠中树脂桩核和纤维桩核修复的疗效略好于金属铸造桩核,前磨牙桩核冠修复的疗效略好于磨牙,但均无统计学差异（P〉0.05）。结论：后牙残冠的桩核冠修复疗效与其缺损洞壁数目有关,残存1洞壁并丧失完整肩领结构的Ⅲ类残冠修复效果最差。
AIM： To observe the effect of post-and-core crown in the treatment of molar residual crowns with different degree of defects. METHODS： 226 residual crowns were devided into 4 types according to the defect degree of residual crowns. The crowns were restored with post-and-core crowns and 201 crowns were followed-up for 3 ~7 years. RESULTS： 190 of the 201 teeth（94.5% ） were successfully restored. The treatment success rate of residual crown type Ⅲ （ defects of 3 walls） was lower（83.9% ） than that of other types. CONCLUSION ： The effect of post-and-core crown in the treatment of residual crowns is related to the number of defected walls. The lowest success rate is produced in the treatment of Type Ⅲ residual crown.
出处
《牙体牙髓牙周病学杂志》
CAS
北大核心
2014年第8期477-480,共4页
Chinese Journal of Conservative Dentistry
关键词
残冠
分类
桩核冠
修复
residual crowns
classification
post-and-core crowns
restoration
