暂时固定桥对双端固定桥桥体龈端密合度的影响

目的:探讨暂时固定桥对双端固定桥桥体龈端密合度的影响。方法:选择37例拟行后牙三单位双端固定桥修复的患者,按常规步骤制作修复体,选用Luxatemp材料制作暂时固定桥,复诊时检查双端固定桥桥体龈端密合情况,同时针刺法检测并记录缺牙区黏膜厚度。结果:初次复诊时13例双端固定桥桥体龈端不密合,缺牙区黏膜厚度2.215±0.410mm;24例密合,缺牙区黏膜厚度1.918±0.128mm,二者有显著性差异。13例不密合者磨去暂时固定桥桥体部分,观察1周,再次复诊时12例恢复密合。结论:暂时固定桥在牙合力作用下使桥体覆盖区的黏膜发生弹性形变,导致双端固定桥桥体龈端出现间隙。黏膜的变形与黏膜厚度有关,且具有可复性。

The influence of provisional crown on the tightness of the denture pontic adheres to the gingival mucosa

Objective:To investigate the in fluence of provisional crown on the tightness of the denture pontic adheres to the gingival mucosa. Methods: 37 patients who are going to wear 3-unit molar fixed partial dentures are selected in this study. The prosthesises were made according to the common regulations. Luxatemp materials were used to make provisional dentures. The tightness of the denture was observed in the appointment. Meanwhile, the thickness of mucosa of edentulous area was detected and recorded by needl...