窝沟封闭剂的封闭性的临床效果评价

Scanning electron microscopic study on the penetration and adaptation of enameloplasty sealant technique(est)

目的评价传统窝沟封闭术(CST)与洞型制备窝沟封闭术(EST)的治疗效果。方法实验以新鲜离体牙20只为实验对象,分为实验组(EST)与对照组(CST)两组进行,用SEM观察封闭剂的密合度及窝沟的深度。结果SEM观察实验组具有较为完善的封闭效果,传统方法往往形成表浅封闭(super-filling)。结论通过洞型制备处理窝洞后,能达到真正意义的封闭。

Objective To study the effect of mechanically removing the outmost layer of prismless enamel on the resin tags,and detect the mechanism that enameloplasty sealant technique can improve the sealant retentive rate.Methods The author observed the penetration and adaptation of Enameloplasty Sealant Technique(EST) with scanning electron microscope(SEM),and compared with Conventional Sealant Technique(CST).Results The resin tag length of the group of mechanically removing the outmost layer was more longer than th...