Black S M, Charlton G
Conservative Dentistry, University of Edinburgh EG1 1NR.
Restorative Dent. 1990 Aug;6(3):26-30.
The longevity of 782 items of crown and bridgework was investigated in a retrospective study. The effect of different cement lutes was assessed for periods varying from 70 to 89 months using a survival analysis technique. The analysis of all types of restoration showed slightly better survival figures for restorations cemented with polycarboxylate but were not statistically significant when compared with those cemented with glass-ionomer. However, those cemented with polycarboxylate were significantly more successful than zinc phosphate. The restorations cemented with glass-ionomer showed no statistically significant improvement in survival rate compared with those cemented with zinc phosphate. Restorations cemented with zinc/oxide eugenol reinforced EBA cement had the lowest survival rate of the four cement types. Analysis of the survival of crowns alone showed the same ranking of the cements compared with all restorations. Comparison of bridges, ranked those cemented with glass-ionomer above those cemented with polycarboxylate, but not statistically different. Posts cemented with phosphate were ranked first and lasted significantly longer than those cemented with glass-ionomer.
在一项回顾性研究中，对782件冠桥修复体的使用寿命进行了调查。使用生存分析技术，评估了不同粘结剂在70至89个月的不同时间段内的效果。对所有类型修复体的分析表明，用聚羧酸锌粘结的修复体的存留率略高，但与用玻璃离子体粘结的修复体相比，差异无统计学意义。然而，用聚羧酸锌粘结的修复体比磷酸锌粘结的修复体成功率显著更高。与用磷酸锌粘结的修复体相比，用玻璃离子体粘结的修复体在存留率上没有统计学上的显著提高。用氧化锌丁香酚增强EBA粘结剂粘结的修复体在四种粘结剂类型中存留率最低。仅对冠的存留情况进行分析时，粘结剂的排名与所有修复体的情况相同。桥体的比较结果显示，用玻璃离子体粘结的桥体排在用聚羧酸锌粘结的桥体之上，但差异无统计学意义。用磷酸盐粘结的桩核排名第一，并且比用玻璃离子体粘结的桩核存留时间显著更长。
