激光促进氟保护漆对牙本质小管的封闭作用  

The combined occluding effect of fluor protector and Nd:YAG laser irradiation on human dentinal tubules

作　　者：张成飞[1] 林琼光[1] 赵宝红[1] 邱华[2] 

机构地区：[1]北京大学口腔医学院特诊科,100081 [2]中央电视台医务室

出　　处：《中华口腔医学杂志》2001年第2期105-107,T002,共4页Chinese Journal of Stomatology

摘　　要：目的　探讨Nd :YAG激光与氟保护漆联合应用对牙本质小管的封闭作用。方法　将 2 4个牙本质块随机分为A、B、C、D4组 ,均用 37%H3PO4 处理表面。A组作为对照。B、C、D组均涂以一薄层氟保护漆 ,然后D组标本经Nd :YAG激光照射。以正常刷牙力度同时刷C、D 2组牙本质块 10min。所有标本以扫描电镜 (scanningelectronmicroscope ,SEM)观察并照相。结果　A组显示大量牙本质小管口开放 ,管口直径约 2～ 3μm。B组显示牙本质表面被氟保护漆均匀覆盖。C组显示氟保护漆大部分被刷去。D组显示仍有超过 80 %的牙本质小管口被氟保护漆所封闭。结论　在同样的刷牙条件下 ,将Nd :YAG激光与氟保护漆联合应用 。Objective To evaluate the combined occluding effect of fluor protector and Nd:YAG Laser irradiation on human dentinal tubules Methods Twenty four dentin specimens with exposed dentinal tubule orifices treated by 37% H 3PO 4 were randomly divided into four groups Group B, C and D were vanished by fluor protector, group A served as a control. Group D was lased by Nd:YAG laser. Group C and D were brushed with normal force Results Under SEM, group A showed numerous exposed dentinal tubule orifices, the diameter of which is 2 3 μm Group B showed closure of dentinal tubule orifices Group C showed that most of the fluor protector were brushed away and group D showed over 80% of the dentinal tubule orifices were occluded Conclusions Fluor protector combined with Nd:YAG laser can make most of the dentinal tubule orifices occluded even after brushed

关 键 词：ND:YAG激光 牙本质 氟保护漆 小管封闭 牙齿敏感症 

分 类 号：R781.2[医药卫生—口腔医学]