光固化树脂表面处理剂对冷光美白牙齿反色效应的影响  

Effect of light-cured adhesives on color relapse after cold light tooth whitening

作　　者：许诺[1] 邵苗苗[2] 胡书海[2] 何建亚 王君玲[2] 李晓杰[2] Xu Nuo;Shao Miao-miao;Hu Shu-hai;He Jian-ya;Wang Jun-ling;Li Xiao-jie(Zhongshan College of Dalian Medical University, Dalian 116000, Liaoning Province, China;Stomatology Medical College, Dalian Medical University Dalian 116000, Liaoning Province, China)

机构地区：[1]大连医科大学中山学院,辽宁省大连市116000 [2]大连医科大学口腔医学院,辽宁省大连市116044

出　　处：《中国组织工程研究》2017年第30期4799-4805,共7页Chinese Journal of Tissue Engineering Research

基　　金：国家自然科学基金项目(51575078):面向牙科义齿性能测试与评估的仿生咀嚼机器人关键技术研究;辽宁省科技厅立项(201602230):基于微流控芯片平台研究长链非编码RNA MIR31HG促进唾液腺腺囊性癌转移的分子机制~~

摘　　要：背景:大多研究认为牙齿美白会造成牙釉质表面粗糙,易吸引外源性染色物质再次沾染而形成反色现象,在美白后尝试选用树脂表面处理剂使牙釉质表面光滑,以期降低反色效应。目的:分析光固化树脂表面处理剂Adper Single Bond 2 Adhesive对冷光(氙激光)美白牙齿反色效应的影响。方法:将24颗离体牙涂布体积分数35%的过氧化氢并氙激光照射美白,美白后,其中12颗颊侧涂布光固化树脂表面处理剂Adper Single Bond 2 Adhesive(实验组),另12颗不涂布光固化树脂表面处理剂(对照组),两组组内再分2亚组,分别浸泡于蒸馏水与茶水中进行老化实验,老化实验的第1,3,5,7,14,21,28,35,42天,观察样本色差变化;于美白前、美白后、涂布树脂表面处理后、老化实验的第28天观察样本表面微观结构。结果与结论:①色差变化:实验组样本美白处理前后、涂布树脂表面处理前后及蒸馏水保存前后的色差值无差异(P>0.05);浸泡于蒸馏水后,实验组与对照组色差值无差异;浸泡于茶水后,实验组第1-42天的色差值均小于对照组(P<0.05);②扫描电镜观察:美白处理后的牙釉质表面存在破坏、空洞;涂布树脂表面处理剂后,实验组牙釉质光滑,少有空洞。浸泡于茶水后,实验组表面呈现渐层平滑面,有部分裂痕,片状染色层颜色分解不明显;对照组样本表面有孔洞较大的粗糙面,并清楚可见到茶水留下的斑驳染色层。浸泡于蒸馏水后,所有样本均只见少量块状染色层、孔洞,粗糙程度弱于浸泡于茶水的效果;③结果表明:涂布光固化树脂表面处理剂Adper Single Bond 2 Adhesive能够使冷光美白后的牙釉质表面变得平滑,降低染色物质黏附,起到降低美白后反色效应的作用。BACKGROUND:Most studies suggest tooth whitening can create a coarse enamel surface which is likely to attract exogenous dyeing material and form the phenomenon of color relapse.After dental bleaching procedure,the use of resin surface treatment agent is expected to make the enamel surface smooth and alleviate tooth color relapse.OBJECTIVE:To unravel the efficacy of Adper Single Bond2Adhesive on color relapse phenomenon after dental bleaching treatment by cold light(xenon laser)whitening.METHODS:Twenty-four extracted teeth were collected and coated with35%hydrogen peroxide followed by xenon laser whitening.The test group was made up of12samples coated with light-cured resin surface treatment agent and the left samples as control group were treated with no-coating agent after tooth whitening.Then the two groups were divided into two subgroups which were soaked in distilled water and tea for aging test respectively.The color differences(ΔE)which provided comparative values for statistical analysis was recorded at1,3,5,7,14,21,28,35and42days after the aging test.The enamel surface microstructure of the samples was observed before and after bleaching,after resin agent coating,and28days after the aging test.RESULTS AND CONCLUSION:(1)Results from color differences observation:there was no significant difference between samples soaked in distilled water before and after whitening treatment(P>0.05).Similarly,there was no statistical difference between test group and control group soaked in distilled water(P>0.05).However,after soaking in tea,the color differences in the test group at1-42days showed statistically significant differences from those in the control group(P<0.05).(2)Results from scanning electron microscope observation:after the tooth whitening producers,the enamel surface was damaged in the presence of cavities.After coated with resin surface treatment agent,the enamel surface became smooth and had few cavities.After soaking in tea,gradient smooth surface,some crack,inconspicuous flake dyeing color layer dec

关 键 词：生物材料 口腔生物材料 树脂表面处理剂 反色效应 过氧化氢 冷光美白 国家自然科学基金 

分 类 号：R318[医药卫生—生物医学工程]