中华口腔正畸学杂志
中華口腔正畸學雜誌
중화구강정기학잡지
CHINESE JOURNAL OF ORTHODONTICS
2011年
4期
206-208
,共3页
邻面去釉%牙釉质%氟%再矿化
鄰麵去釉%牙釉質%氟%再礦化
린면거유%아유질%불%재광화
Interproximal enamel reduction (IER,IPR)%Enaml%Fluoride%Remineralization
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.Ⅰ组去釉后应用氟保护漆,Ⅱ组应用氟化泡沫,Ⅲ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,Ⅰ组最高,ⅠA为(282.64±25.20) kg/mm2,ⅠB为(264.90±24.32)kg/mm2；Ⅲ组最低,ⅢA为(187.92±45.53) kg/mm2,ⅢB为(170.90±30.73)kg/mm2.每组内,Ⅰ、Ⅱ组间均无统计学差别,而Ⅰ组比Ⅲ组均高,差异有统计学意义；Ⅱ组比Ⅲ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.
目的 探討鄰麵去釉後牙釉質再礦化的方法.方法 以正畸減數的雙尖牙為實驗樣本,共60箇,隨機平分為A,B組.A組採用去釉砂條去釉+35％燐痠拋光；B組採用片切盤去釉+35％燐痠拋光.每組再根據不同的氟保護劑隨機平分為三箇亞組.Ⅰ組去釉後應用氟保護漆,Ⅱ組應用氟化泡沫,Ⅲ組未處理,為對照組.經體外PH循環15 d後採用定量的顯微硬度檢測,進行統計學處理.結果 每組內的三箇亞組間的顯微硬度值差異均有統計學意義(P值分彆為0.0015和0.0016),其中,Ⅰ組最高,ⅠA為(282.64±25.20) kg/mm2,ⅠB為(264.90±24.32)kg/mm2；Ⅲ組最低,ⅢA為(187.92±45.53) kg/mm2,ⅢB為(170.90±30.73)kg/mm2.每組內,Ⅰ、Ⅱ組間均無統計學差彆,而Ⅰ組比Ⅲ組均高,差異有統計學意義；Ⅱ組比Ⅲ組均高,差異有統計學意義.結論 體外實驗提示,經去釉砂條或片切盤去釉+35％燐痠拋光後,氟保護漆和氟化泡沫對去釉後的牙釉質均有良好的再礦化作用.
목적 탐토린면거유후아유질재광화적방법.방법 이정기감수적쌍첨아위실험양본,공60개,수궤평분위A,B조.A조채용거유사조거유+35％린산포광；B조채용편절반거유+35％린산포광.매조재근거불동적불보호제수궤평분위삼개아조.Ⅰ조거유후응용불보호칠,Ⅱ조응용불화포말,Ⅲ조미처리,위대조조.경체외PH순배15 d후채용정량적현미경도검측,진행통계학처리.결과 매조내적삼개아조간적현미경도치차이균유통계학의의(P치분별위0.0015화0.0016),기중,Ⅰ조최고,ⅠA위(282.64±25.20) kg/mm2,ⅠB위(264.90±24.32)kg/mm2；Ⅲ조최저,ⅢA위(187.92±45.53) kg/mm2,ⅢB위(170.90±30.73)kg/mm2.매조내,Ⅰ、Ⅱ조간균무통계학차별,이Ⅰ조비Ⅲ조균고,차이유통계학의의；Ⅱ조비Ⅲ조균고,차이유통계학의의.결론 체외실험제시,경거유사조혹편절반거유+35％린산포광후,불보호칠화불화포말대거유후적아유질균유량호적재광화작용.
Objective To compare the methods of enaml remineralization after interproximal enamel reduction.Methods Sixty premolars from orthodontic extraction were included.The teeth were divided 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 and randomly.Subgroup Ⅰ was treated with fluor protector.Subgroup Ⅲ was treated with fluoride foam.Subgroup Ⅲ 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 using SPSS13.0.Results Both in group A and B,subgroup Ⅰ was the highest in mean microhardness,ⅠA was (282.64±25.20)kg/mm2,ⅠB was (264.90±24.32)kg/mm2,subgruop Ⅲ the lowest,ⅢA was (187.92±45.53)kg/mm2,ⅢB was (170.90±30.73)kg/rnm2.There were highly significant differences between subgroups Ⅰ and Ⅲ.The mean microhardness in subgroup Ⅱ was significantly greater than that in subgroup Ⅲ.There were no statistically significant differences between subgroups Ⅰ and Ⅱ.Conclusions Both fluor protector and fluoride foam had good remineralization effect after.interproximal enamel reduction.
