覆盖义齿基牙牙周状况的评价

Assessment of the Periodontal Health of Overlay Denture Abutments

对55例戴用五年后的覆盖义齿206只基牙,每只基牙做了菌斑指数、可龈指数、牙齿松动度、牙龈萎缩程度及龋沟深度的检查比较;牙周状况的调查。并分组对结果提示三组牙周组织变化的指标具有一定的共性和各自的特性,符合临床表现。表明覆盖义齿修复后基牙的牙周损害不是普遍的和必然的,与修复前的基牙自然条件有一定的关系。菌斑及牙齦炎症的发病率较高,有待研究其对基牙牙周组织的长期影响。

In this paper, the periodontal conditions of 206 abutment teeth were investigated in 55 patients using overlay denture abutment for 5 years. According to the pre-reparative natural conditions of the abutments,they were classified into caries group, periodontitis group and the others group. The inspection of the plague index, the gingival index, the tooth mobility, the degree of gingival atrophy and the salcular depth were recorded for each abutment. The result of statistical treatment showed that the five indexes of evaluating change of periodontal tissue possessed certain common characteristics and its own specific characteristics in the 3 sets of abutment of different natural condition. They are fitted with their clinical manifistations. It is shown that after the repair of overlay denture, the periodontal damages of abutments are not general and inexorable and have definite segnificance with the natural conditions of abutments before repair. The incidences of dental plaque and gingivitis are higher. Further investigation should be made to evaluate the long-term effects of the periodontal tissues of abutments.