套筒冠式固定桥对牙周炎伴牙列缺损患者基牙牙周状况的影响

Effects of Telescope Retained Fixed Bridge on the Periodontal Status of Abutment Tooth Having Periodontitis with Den tition Defect

目的:比较套筒冠式固定桥和常规方式固定桥对牙周炎伴牙列缺损患者基牙牙周状况的影响。方法:选择双侧对称第一磨牙缺失的牙周炎患者15例,每位患者随机一侧基牙共30颗为实验组,另一侧基牙常规固定桥修复作为对照组,分别于修复后即刻,3个月,6个月,1年时对基牙进行松动度(TM)、龈沟出血指数(SBI)、牙周探诊深度(PD)及附着丧失(AL)的检测,记录其数据。结果:实验组比对照组的龈沟出血指数、基牙牙周探诊深度、附着丧失和松动度的指标有改善,其差异有统计学意义。结论:套筒冠式固定桥对牙周病患者缺牙的修复比常规固定桥修复更能维护基牙的牙周健康,有利于牙周病患者基牙长期存留。

Objective： To compare the different effect between the method of telescope retained fixed bridge and the method of traditional fixed bridge on the periodontal status of abutment tooth having periodontitis with dentition de fect. Methods： In accordance with the choosing criteria, 15 patients, each with symmetrical missing of the first mo- lar ,were chosen. The selected 15 patients with 60 abutment teeth were divided into experimental and comparative groups, each with 30 abutments. The abutments on both sides of each patient were classified into experimental and comparative groups at random, the abutments in experimental group were repaired by telescope retained fixed bridge, while that in comparative group by traditional fixed bridge. The SBI , TM, PD, AL of abutments in both groups were tested immediately after the repairing and in 3, 6, and 12 months respectively. The testing data were recorded. Results： On basis of test data for both of experimental and comparative groups, it can certify that condi tion of SBI ,TM,PD, AL of experimental groups was more remarkable improved than comparative group＇s. Conclu- sion： Telescope retained fixed bridge can keep the periodontal variations of abutments more clean and healthy status than traditional fixed bridge, and it is benefit for keeping patient＇s abutments available for long time.