Er:YAG激光处理对牙釉质及牙本质修复效果的影响  

The Influence of Er: YAG Laser Treatment on Repairing Effect of Enamel and Dentin

作　　者：鄂丽华[1] 达林泰[1] 宝力道[2] 韩长竹 

机构地区：[1]内蒙古医科大学附属医院口腔科,内蒙古呼和浩特010050 [2]内蒙古赤峰学院,内蒙古赤峰024000 [3]内蒙古医科大学附属人民医院,内蒙古呼和浩特010020

出　　处：《激光生物学报》2014年第1期25-28,共4页Acta Laser Biology Sinica

基　　金：内蒙古自然科学基金(2013MS1158)

摘　　要：研究不同表面处理条件下Er:YAG激光照射对牙釉质及牙本质修复效果的影响。80个样本随机分成牙釉质和牙本质2大组,再根据处理方式随机分为4小组:①酸蚀(37%磷酸);②Er:YAG激光;③自酸蚀粘接处理剂;④Er:YAG激光+自酸蚀粘接处理剂。与树脂加强型玻璃离子水门汀(RMGIC)粘接后37℃水浴中储存24 h,用万能测试机测定粘接剪切强度。牙釉质及牙本质组结果均为3、4小组粘结强度接近(P>0.05),显著高于其他组(P<0.05),1、2小组间粘结强度差别无统计学差异(P>0.05)。Er:YAG激光照射可替代37%磷酸酸蚀处理方法;G-Bond自酸蚀粘接处理剂可提高牙面与RMGIC间的粘结力,Er:YAG激光处理不影响该效果。To study the influence of Er：YAG laser treatment on repairing effect of enamel and dentin treated by different surface managements.Eighty specimens were randomly divided into enamel and dentin groups,each group was assigned to 4 subgroups according to the different surface treatments：①Etching（37%phosphoric acid）,②Er：YAG laser,③Self-etching adhesive,④Er：YAG laser＋self-etching adhesive.Resin-modified glass-ionomer cement （RMGIC）was bonded to the previous treated surfaces.After storing in 37 ℃ incubator for 24 hours,shear bond strength was measured with a universal testing machine.In both enamel and dentin groups,3 and 4 subgroups showed no statistically significant differ-ence （P〉0.05）,showed higher value compared with the other subgroups（P＆lt;0.05）.There was no statistically signif-icant difference between 1 and 2 subgroups（P〉0.05 ）.Er：YAG laser irradiation can replace the way that treated by 37% phosphoric acid etching.G-Bond adhesive may improve the bond strengths between tooth surface and RMGIC,and Er：YAG laser have no influence on that.

关 键 词：ER YAG激光 牙釉质 牙本质 粘接剪切强度 树脂加强型玻璃离子水门汀 

分 类 号：R783.1[医药卫生—口腔医学]