不同酸蚀时间对空气喷砂去龋后牙本质界面影响  

Effects of different acid etching time on dentin surface after prepared by air abrasion

作　　者：张进[1] 吴补领[1] 吕昕[1] 张亚庆[1] 杨利明[1] 杨亚宁[1] 屈瑞玲[1] 

机构地区：[1]第四军医大学口腔医学院,陕西西安710032

出　　处：《牙体牙髓牙周病学杂志》2003年第4期209-211,共3页Chinese Journal of Conservative Dentistry

摘　　要：目的 :探讨不同酸蚀时间对空气喷砂去龋后牙本质界面组织学变化。方法 :空气喷砂机对龋坏牙本质制洞后 ,对牙本质界面进行不同时间酸蚀 ,扫描电镜下观察牙本质界面的组织学变化。结果 :牙本质酸蚀 30s后界面呈珊瑚状相互交联 ,有大量牙本质小管开口 ,小管内无栓塞。结论 :喷砂制洞后对龋损牙本质界面酸蚀AIM:To evaluate the effects of different ac id etching time on dentin surface tissue after prepared with air abrasion.METHODS:The tooth with caries was prepared with air abrasion, then the dentin surface was etched in different times. Changes of dentin surface tissue were observed by SEM.RESULTS:After 30 s of acid etching, denti n surface tissue appeared coralloid connection.A plenty of dentin tubules opened ,without thrombus in them.CONCLUSION:Acid etching 30 s is an a ppropriate time for dentin after prepared with air abrasion.

关 键 词：空气喷砂机 玷污层 酸蚀 牙本质 扫描电镜 组织学 龋病 

分 类 号：R781.1[医药卫生—口腔医学]