不同方法去除不同材质正畸托槽及粘接剂的对比实验研究  

Comparison of various debracketing and adhesive clearance methods for different kinds of brackets

作　　者：范晓川 陈莉[2] 黄晓峰[1] 

机构地区：[1]首都医科大学附属北京友谊医院口腔科,北京100050 [2]首都医科大学口腔医学院正畸科

出　　处：《北京口腔医学》2017年第6期337-342,共6页Beijing Journal of Stomatology

基　　金：北京市卫计委成果推广项目(TG-2015-018)

摘　　要：目的研究不同方法去除不同材质正畸托槽及残余粘接剂对釉质表面的影响,评价一种适宜高效的去粘接方法,为正畸临床工作提供指导。方法取因正畸原因拔除的人上颌前磨牙56颗,分别粘接金属或陶瓷托槽,使用2种方法去除正畸托槽后再使用3种不同方法去除残余粘接剂并对牙面抛光。分别检测粘接剂残留指数(ARI),操作时间及牙面粗糙度指数,并使用扫描电镜观察釉质表面微观结构。结果托槽去除钳及釉质凿组去除托槽后的ARI无显著性差异(P>0.05)。金刚砂车针+矽粒子组去除粘接效率最高,Super-Snap抛光碟组次之,矽粒子组最低。矽粒子组处理后釉质表面形貌及粗糙度与天然釉质最接近,Super-Snap抛光碟组次之,金刚砂车针+矽粒子组最差。使用相同方法去除金属托槽和陶瓷托槽无显著性差异(P>0.05)。结论托槽去除钳较釉质凿去除托槽更安全,矽粒子去粘接效果最好但效率最低,Super-Snap抛光碟去粘接效果及效率均处可接受范围,金刚砂车针不适于去粘接。采用相同方法去除不同材质托槽及粘接剂对牙面的影响类似。Objective To evaluate an appropriate and efficient method for debracketing and adhesive clearance after orthodontic treatment. Methods Fifty-six human maxillary premolars, extracted for orthodontic purpose were bonded with metal or ceramic brackets. Two debracketing methods and three cleanup techniques were used for debonding process. The debracketing methods were compared by assessing adhesive remnant indexes （ARIs）. Cleanup efficiency was assessed by recording operating times. Enamel surface was evaluated with scanning electron microscopy （SEM） and surface roughometry. Results The ARIs of debracketing were similar with debonding pliers and enamel chisel （ P 〉 0. 05 ）. The diamond bur ＋ One-Gloss took the shortest operating time, followed by the Super-Snap disk, and the One-Gloss polisher. The surface roughness and SEM appearance treated by the One-Gloss polisher was the closest to the intact enamel surface followed by the Super-Snap disk and the diamond bur ＋ One-Gloss. There was no difference between removing metal or ceramic brackets with the same method （ P 〉 0.05 ）. Conclusion Debonding pliers was safer than enamel chisel for removing brackets. One-Gloss polisher was most effective but lowest efficient. Super-Snap disks provided acceptable enamel surfaces and efficiency. The diamond bur was not suitable for removing remnant adhesive. The effect of removing different kinds of brackets with same method on enamel surface was similar.

关 键 词：正畸去粘接 金属托槽 陶瓷托槽 

分 类 号：R783.5[医药卫生—口腔医学]