CAJ | 학술논문

目的评价漂白对复合树脂颜色的影响,为临床提供参考.方法选用2种间接修复复合树脂(Adoro SR和Ceramage)和3种直接充填复合树脂(Filtek Z350、Gradia Direct Anterior、Clearfil Majesty Esthetic).每种树脂制作20个试样(直径10 mm、厚1.0 mm),查询随机数字表随机分为5个组(每组样本量为4),分别使用2种家庭漂白剂(10％和15％过氧化脲)、2种诊室漂白剂(38％过氧化氢和35％过氧化氢)以及去离子水(空白对照组)处理.使用光谱扫描色度仪测量处理前后试样的色度值,计算彩度值和色差值.结果家庭漂白或诊室漂白前后所有树脂试样的色差值均小于2.0,为肉眼不可察觉.与空白对照组相比,漂白后各组试样均表现为明度值(L*)轻度增加、彩度值(C*ah)下降.双因素方差分析显示,漂白剂种类和复合树脂种类对试样漂白前后色差值有影响(P=0.001).结论本项实验条件下,漂白处理未能影响复合树脂的颜色.
목적 평개표백대복합수지안색적영향,위림상제공삼고.방법 선용2충간접수복복합수지(Adoro SR화Ceramage)화3충직접충전복합수지(Filtek Z350、Gradia Direct Anterior、Clearfil Majesty Esthetic).매충수지제작20개시양(직경10 mm、후1.0 mm),사순수궤수자표수궤분위5개조(매조양본량위4),분별사용2충가정표백제(10％화15％과양화뇨)、2충진실표백제(38％과양화경화35％과양화경)이급거리자수(공백대조조)처리.사용광보소묘색도의측량처리전후시양적색도치,계산채도치화색차치.결과 가정표백혹진실표백전후소유수지시양적색차치균소우2.0,위육안불가찰각.여공백대조조상비,표백후각조시양균표현위명도치(L*)경도증가、채도치(C*ah)하강.쌍인소방차분석현시,표백제충류화복합수지충류대시양표백전후색차치유영향(P=0.001).결론 본항실험조건하,표백처리미능영향복합수지적안색.
Objective To evaluate the effect of bleaching agents on the color of indirect and direct composite resins.Methods Five resin composite materials were tested in this in vitro study.The five composites were as follow:two indirect composite resins (Adoro SR,Ceramage) and three direct composite resins (Filtek Z350,Clearfil Majesty Esthetic,and Gradia Direct Anterior).For each material,twenty disk-shaped specimens were prepared and randomly divided into five groups according to the color parameters of specimens before bleaching treatment.The composite resin specimens were treated by one of five sample solutions which were at-home bleaching agents (10％ and 15％ carbarmide peroxide),in-office bleaching agents (38％ H2O2 and 35％ H2O2) and deionized water (control group).The color parameters of specimens were measured by spectrophotometer at baseline and after bleaching treatments.The color differences (ΔE values) between baseline and post-treatments were calculated.The data of color differences were evaluated statistically using two-way analysis with a significance level of 0.05.Results The color changes of the resin composites were less than 2.0 after bleaching agent treatment,therefore were not perceptible.Slight increase of L* values and decrease of C*ab values in color parameters of specimens were observed.There were statistically significant differences in ΔE values for different bleaching treatments and resin materials(P=0.001).Conclusions The bleaching agents did not affect the color of indirect and direct composite resins tested.