摘要
目的:比较两种方法用于修复后牙游离缺失伴残根残冠的修复效果。方法:选择38例后牙游离缺失伴残根残冠的患者,按随机数字表法将其分为两组,分别采用冠外栓道式精密附着体义齿(n=17)和卡环固位活动义齿修复(n=21),5年后对修复效果进行评价。结果:冠外栓道式精密附着体义齿组出现1例崩瓷,无冠桩松动脱落、根折、桩折、牙周炎和根尖周炎,无活动部分破损,成功率为94.1%;卡环固位活动义齿组出现8例失败,成功率为61.9%,两组成功率比较差异有统计学意义(P<0.05)。结论:对于后牙游离缺失伴残根残冠的牙列缺损病例,选用冠外栓道式精密附着体义齿修复的临床效果较好,值得临床推广使用。
Objective： To compare the effect of two methods in restoration of bilaterally disto-extensive loss of posterior teeth, residual roots and crowns. Method： 38 patients with bilaterally disto-extensive loss of posterior teeth were divided into two groups according to random number table method, and were treated by extra coronal key-way precision attachment （ n=17 ） and clasp retention removable dentures （ n=21 ） respectively. The restoration effect after 5 years was evaluated. Result： Only 1 case had porcelain fracture in the extra coronal key-way precision attachment group, and crown and post loose, shedding, root fracture, post fracture, periodontitis, periapical inflammation or damage of removable part were not reported; the success rate was 94.1%. 8 patients were failed in the clasp retention removable dentures group, Its success rate was only 61.9%. The success rate of two groups had significant difference （ P〈 0.05 ） . Conclusion： For the case of defective dentition with bilaterally disto-extensive loss of posterior teeth, it would be better to choose extra coronal key- way precision attachment, and it is worthy of clinical promotion.
出处
《中国医学创新》
CAS
2014年第11期20-23,共4页
Medical Innovation of China
关键词
牙列缺损
栓道式附着体
卡环
Defective dentition
Key-way attachment
Clasp
