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1、邻面去釉后牙釉质再矿化的体外研究刘新强束传亮陈秀娟摘要 目的 探讨邻面去釉后牙釉质再矿化的方法。方法 以正畸减数的双尖牙为实验样本，共60个，随机平分为A，B组。A组采用去釉砂条去釉+35磷酸抛光；B组采用片切盘去釉+35磷酸抛光。每组再根据不同的氟保护剂随机平分为三个亚组。组去釉后应用氟保护漆，组应用氟化泡沫，组未处理，为对照组。经体外PH循环15 d后采用定量的显微硬度检测，进行统计学处理。结果 每组内的三个亚组间的显微硬度值差异均有统计学意义(P值分别为0.0015和0.0016)，其中，组最高，A为(282.6425. 20) kg/mm2，B为（264.9024.32）kg/mm2；
2、组最低，A为(187.9245. 53) kg/mm2，B为(170. 9030. 73)kg/mm2。每组内，、组间均无统计学差别，而组比组均高，差异有统计学意义；组比组均高，差异有统计学意义。结论 体外实验提示，经去釉砂条或片切盘去釉+35磷酸抛光后，氟保护漆和氟化泡沫对去釉后的牙釉质均有良好的再矿化作用。邻面去釉；牙釉质；氟；再矿化In vitro study of enaml remineralization after interproximal enamel reduction LIU Xin-qiang SHU Chuan-liang*CHEN Xiu-juanDepartmen
3、t of Orthodontics, the Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, China Abstract Objective To compare the methods of enaml remineralization after interproximal enamel reduction. Methods Sixty premolars from orthodontic extraction were included. The teeth were divided
4、 evenly into group A and B randomly. In group A, the interproximal enamel reduction (IER) was done with stripping strip and polished with 35 orthophosphoric acid. In group B, IER was done with stripping disk and polished with 35 orthophosphoric acid. Each group was divided into 3 subgroups evenly an
5、d randomly. Subgroup was treated with fluor protector. Subgroup was treated with fluoride foam. Subgroup was served as control group. All the samples were treated with PH cycle in vitro for 15 days. The IER surface was detected by microhardness testing machine The data were statistically analyzed us
6、ing SPSS13. 0. Results Both in group A and B, subgroup was the highest in mean microhardness, A was (282. 6425. 20)kg/mm2, B was (264. 9024. 32)kg/mm2,subgruop the lowest, A was (187. 9245. 53)kg/mm2, B was (170. 9030. 73)kg/rnm2. There were highly significant differences between subgroups and . The
7、 mean microhardness in subgroup was significantly greater than that in subgroup . There were no statistically significant differences between subgroups and . Conclusions Both fluor protector and fluoride foam had good remineralization effect after. interproximal enamel reduction. Interproximal ename
8、l reduction (IER,IPR); Enaml; Fluoride; Remineralization 10. 3760/cma. i. issn. 1674-5760. 2011.04. 007266003 青岛大学医学院附属医院口腔正畸科面去釉是否：1 Rossouw PE, Tortorella A. Enamel reduction procedures in orthodontic treatment. J Can Dent Assoc,2003,69(6) :378-383.2 Cheng L, Li J, Hao Y, et al. Effect of compound
9、s of Galla chinensis and their combined effects with fluoride on remineralization of initial enamel lesion in vitro. J Dent,2008,36(5):369-373.3 Schiff N, Boinet M, Morgon L, et al. Galvanic corrosion between orthodontic wires and brackets in fluoride mouthwashes. Eur J Orthod, 2006,28(3) : 298-304.
10、4 Joseph VP, Rossouw PE, Basson NJ. Orthodontic microabrasive reproximation. Am J Orthod Dentofacial Orthop, 1992,102(4) : 351-359.5吴红，周学东，谭红，等.微量元素矿化液促进釉质龋再矿化层形成机理的研究.华西口腔医学杂志，2000，18(4)：219-221.转接225.6 Kodaka T, Debari K, Yamada M, et al. Correlation between microhardness and mineral content in so
11、und human enamel (short communication). Caries Res, 1992,26(2) : 139-141.7 Wilson TG, Love B. Clinical effectiveness of fluoride-releasing elastomers. Enamel microhardness levels. Am J Orthod Dentofacial Orthop, 1995,107(4) : 379-381.2011-06-29目）。邻面去釉后牙釉质再矿化的体外研究作者： 刘新强， 束传亮， 陈秀娟， LIU Xin-qiang， SHU Chuan-liang， CHEN Xiu-juan作者单位： 266003,青岛大学医学院附属医院口腔正畸科刊名： 中华口腔正畸学杂志英文刊名： Chinese Journal of Orthodontics年，卷(期)： 2011,18(4)本文链接：http:/
