中国美容医学2018，Vol.27Issue(5)：73-76,4.
两种粘接系统下树脂水门汀厚度对纤维桩粘接强度的影响
Effect of Resin Cement Thickness on Bonding Strength of Fiber Post under Two Kinds of Bonding System
摘要
Abstract
Objective To evaluate the effect of different thickness of resin cements on the bonding properties of fiber post under the two different bonding systems of total-etching and self-etching, and to provide theoretical basis for the application of fiber post in the clinical operation process. Methods The 40 anterior molars with orthodontic extraction were randomly divided into two groups after being treated with a perfect root canal, named the total Acid etching Group (Group A) and the self-acid etching group (Group B). Each group was then pressed 1.2 mm (1), 1.4 mm (2), 1.6 mm (3), 1.8 mm (4) was divided into four groups to prepare the post path. Recorded as A1, B1, A2, B2, A3, B3, A4, B4 Group. Using a universal adhesive and a dual cured resin cement, bonded the diameter is 1.1mm fiber posts with the prepared experimental teeth. Slice cut to thickness of 1.5 mm specimens, By scanning electron microscope (SEM), the surface of the specimen and the bonding place of the material were observed, Use the micro push-out test results of its bonding strength, The failure mode of the specimen was observed under a 20-ploidy microscope after the completion of the test. Results Total-etching1.4 mm group(A2) has the highest bonding strength, self-etching1.8 mm group (B4) has the lowest bonding strength(P<0.05);In the two groups of specimens, the failure mode between dentin and resin cement was the main failure mode. Conclusion The adhesive strength of resin cement with total acid etching technology is better than that with self-acid etching technology, and with the increase of the thickness of resin cement, the bonding strength increases first and then decreases, and the overall downward trend is shown.关键词
粘接系统/粘接强度/树脂水门汀厚度/纤维桩Key words
adhesive system/bonding strength/the thickness of resin cement/fiber post分类
医药卫生引用本文复制引用
谢佳雨,施梦汝,谢伟丽..两种粘接系统下树脂水门汀厚度对纤维桩粘接强度的影响[J].中国美容医学,2018,27(5):73-76,4.基金项目
黑龙江省科技攻关课题(GC12C305-3) （GC12C305-3）
