摘要
目的探讨在干燥和人工唾液条件下,自锁托槽在后牙段所产生摩擦力的差异。方法在干燥和人工唾液条件下,分别测试2种被动自锁托槽系统(Damon 33、M SmartClip)、1种主动自锁托槽系统(Time 2)与3种弓丝(0.019×0.025英寸镍钛方丝、0.019×0.025英寸不锈钢方丝、0.016×0.022英寸镍钛方丝)组合的静、动摩擦力。结果同一自锁托槽系统中,实验组(人工唾液组)的静、动摩擦力均高于对照组(干燥组),差异有统计学意义(均P<0.05)。结论在干燥和人工唾液条件下,不同自锁托槽系统摩擦力均存在显著差异,人工唾液能增加自锁托槽系统的摩擦力。
Objective To study the frictional resistance in the buccal segment between self-ligating brackets and archwires in the dry and artificial saliva states. Methods The static and kinetic friction of different combinations of 2 designs of passive self-ligating brackets （Damon 3, 3M SmartClip）, 1 design of active self-ligating bracket （Time 2） and 3 types of archwires （0. 019 × 0. 025 inch nickel-titanium archwire, 0. 019 × 0. 025 inch stainless steel archwire, 0. 016 × 0. 022 inch nickel-titanium archwire） was tested in the dry and artificial saliva states. Results The static and kinetic friction of the same self-ligating brackets in the artificial saliva state was significantly greater than that in the dry state （P（0.05）. Conclusion There were significant differences in frictional resistance of different bracket systems under the dry and artificial saliva states. The self-ligating brackets produced greater frictional resistance in the artificial saliva state.
出处
《华中科技大学学报（医学版）》
CAS
CSCD
北大核心
2007年第4期554-556,共3页
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong
关键词
自锁托槽
弓丝
摩擦力
人工唾液
self-ligating brackets
archwire
frictional resistance
artificial saliva
