全瓷高嵌体和全瓷冠修复前磨牙牙体缺损的临床效果比较

Comparision of the treatment efficacy of onlay and full crown on root-canal-treated premolars

摘要:

目的 评价全瓷高嵌体或全瓷冠修复前磨牙牙体缺损的远期临床效果。方法 随机选取2017年 1月—2018年5月贵阳市口腔医院诊治的137例患者（163颗）前磨牙进行研究，经过完善的根管治疗后，随机分为高嵌体组以及全冠组，其中高嵌体组65例（81颗患牙），全冠组72例（82颗患牙）。3年后，比较两组间成功率和存活率的差异。结果 3年后，高嵌体组成功率为91.4%，存活率为98.8%；全冠组成功率为89.0%，存活率为90.2%。两组间成功率比较差异无统计学意义（P?>0.05），但存活率比较，差异有统计学意义（P?< 0.05）。结论 高嵌体更适合作为根管治疗后前磨牙的修复方式。

Abstract:

Objective To investigate the effectiveness of onlay or full crown to treat root-canal-treated premolars. Methods A total number of 163 premolars from 137 patients were included in this study. After treated with root canal therapy, these teeth were randomly assigned to the onlay group and the full crown group. Three years later, the success rate and survival rate of implants were compared between these two modalities. Results The success rate and survival rate of onlay were 91.4% and 98.8% respectively, while those for full crown were 89.0% and 90.2% respectively. No significance was detected between the success rate of two groups (P?>?0.05). But the survival rate of the onlay group is significantly higher than the full crown group (P?