冷光漂白对复合树脂充填体边缘微渗漏的影响

发布时间：2019-01-26 17:45

【摘要】：目的评价冷光漂白对在不同充填时机使用不同粘接剂的复合树脂充填体边缘微渗漏的影响。方法选取新鲜拔除的健康前磨牙40颗,在其颊面制备Ⅴ类洞,按随机数字表法分为A~J共10组,每组4颗。A~E组使用AdperTM Single Bond2全酸蚀粘接剂,分别于漂白前、漂白后即刻、漂白后1周、漂白后2周及未漂白时充填,F~J组使用AdperTM Easy One自酸蚀粘接剂分别于上述时间充填,其中E组与J组为对照组(未漂白组),所有牙使用FilitekTMZ350XT复合树脂进行充填。冷热循环并染色后,颊舌向剖开,牙科显微镜下测量记录染料渗入洞壁的深度。结果①在相同充填时间使用AdperTMSingle Bond2的充填物微渗漏较使用AdperTMEasy One小(P0.05,P0.01)。②冷光漂白前、漂白后即刻与漂白后1周使用2种粘接剂树脂充填,均较未漂白边缘微渗漏增加(P0.05);漂白后2周使用2种粘接剂树脂充填,与未漂白微渗漏比较差异无统计学意义(P0.05)。结论使用全酸蚀粘接剂的树脂充填物微渗漏较小,最好在冷光漂白2周后进行树脂充填,而漂白前已经存在的充填物则应该在漂白后更换。
[Abstract]:Objective to evaluate the effect of cold light bleaching on microleakage of composite resin fillers with different bonding agents at different filling times. Methods Forty freshly extracted healthy premolars were selected and made into V cavities on their buccal surface. They were randomly divided into 10 groups (4 in each group). Group A was treated with AdperTM Single Bond2 total acid etching adhesive before bleaching and immediately after bleaching. One week after bleaching, two weeks after bleaching and two weeks after unbleached filling, AdperTM Easy One self-etching adhesive was used to fill the teeth in group F, and group E and group J were used as control group (unbleached group). All teeth were filled with FilitekTMZ350XT composite resin. After cooling and dyeing, the buccal tongue was dissected, and the depth of dye penetration into the wall was measured under dental microscope. Results 1the microleakage of AdperTMSingle Bond2 at the same filling time was less than that of AdperTMEasy One (P0.05P0.01). 2 before cold light bleaching, immediately after bleaching and 1 week after bleaching, two kinds of adhesive resin were used for filling. Compared with unbleached edge, microleakage increased (P0.05). Two weeks after bleaching, two kinds of adhesive resin were used to fill, and there was no significant difference compared with unbleached microleakage (P0.05). Conclusion the microleakage of resin fillers with total acid etching adhesive is relatively small. It is better to fill with resin after 2 weeks of cold light bleaching, while the existing fillings before bleaching should be replaced after bleaching.
【作者单位】：重庆医科大学附属口腔医院牙体牙髓科口腔疾病与生物医学重庆市重点实验室;
【分类号】：R783.3

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