高强纤维树脂贴面在前牙美容修复中的应用评价  

An evaluation of fiber reinforced composites veneer in anterior esthetic restoration

作　　者：钟群 贾爽 叶荣荣 陈栋 王德芳 包向军 ZHONG Qun;JIA Shuang;YE Rong-rong;CHEN Dong;WANG De-fang;BAO Xiang-jun(Department of Prosthodontics,Shanghai Stomatological Hospital.Shanghai 200001,China;Department of Endodontics,Shanghai Stomatological Hospital.Shanghai 200001,China)

机构地区：[1]上海市口腔病防治院口腔修复科,上海200001 [2]上海市口腔病防治院牙体牙髓病科,上海200001

出　　处：《上海口腔医学》2021年第2期120-123,共4页Shanghai Journal of Stomatology

基　　金：上海市卫生局基金(20134162)。

摘　　要：目的:探讨高强纤维树脂贴面用于修复变色及缺损前牙的优势。方法 :制作长、宽均为2 cm,厚1 mm的20个瓷贴面试件及20个相同规格的高强纤维树脂贴面试件,其中一侧纵截面制作成45°斜面,再制作40个相同规格的高强纤维树脂贴面。将瓷贴面及高强纤维树脂贴面按照临床常规抛光、酸蚀处理后,使用粘接剂将树脂贴面对应粘结到瓷贴面及树脂贴面的斜面处。制备完成的试件置于40℃温水中浸泡24 h,取出后自然干燥。将2组试件置于万能材料测试机的抗压测试平台上,测试压力1 mm/min,加载器头部为1 cm2正方形,与粘结界面的表面呈整体接触,计算机自动记录2组试件的碎裂过程及粘结界面的最大抗压强度,测试在同等条件下粘结界面的抗压强度。采用SPSS 12.0软件包对数据进行统计学分析。结果:高强纤维树脂贴面破损后以相同材料粘结,粘结界面的抗压强度显著高于瓷贴面破损后以高强纤维树脂材料粘结的界面(P<0.05)。结论:瓷贴面修复前牙破损后无法修补。高强纤维树脂贴面修复变色及部分缺损前牙出现的破损,可以同种材料适当修补,具有明显优势。PURPOSE: To explore the advantages of fiber reinforced composites veneer in repairing discolorated and defective anterior teeth. METHODS: Twenty porcelain veneers and 20 fiber reinforced composites veneers specimens of 2 cm long, 2 cm wide and 1 mm in thickness, with a longitudinal cross section of 45° incline were made. Another 40 fiber reinforced composites specimens of the same shape were used for comparison. After polishing and acid treatment of all the specimens according to clinical routine, resin cement was used for bonding the porcelain cover with resin veneers slope,and the conjunct specimens were soaked in 40 ℃ warm water for 24 h and drying;then the two groups of specimens were put were put on the pressure testing platform of the universal testing machine, with 1 mm/min testing pressure, and1 cm2 square head was contacted on the surface of the bonding interface. Computer was used to record the fracture process of the two groups of specimens and the maximum compressive strength of bonding interface automatically. The compressive strength of the bonding interface under the same conditions was evaluated. SPSS 12.0 software package was used for sta-tistical analysis. RESULTS: The compressive strength of the bonding interface between fiber reinforced composites was significantly higher than that between porcelain and fiber reinforced composites(P <0.05). CONCLUSIONS: Compared with porcelain veneers that can not be repaired when damaged in the anterior teeth, high-strength fiber resin veneers can partially be repaired with the same material, which has obvious advantages.

关 键 词：高强纤维树脂贴面 瓷贴面 抗压强度 

分 类 号：R783.1[医药卫生—口腔医学]