Prashant P S, Nandan Hemant, Gopalakrishnan Meera
Department of Orthodontics, Indira Gandhi Institute of Dental Sciences, Kothamangalam, Ernakulam, Kerala, India.
Department of Conservative and Endodontics, Indira Gandhi Institute of Dental Sciences, Kothamangalam, Ernakulam, Kerala, India.
J Pharm Bioallied Sci. 2015 Aug;7(Suppl 2):S334-8. doi: 10.4103/0975-7406.163439.
Conventional wisdom suggests that resistance to sliding (RS) generated at the wire-bracket interface has a bearing on the force transmitted to the teeth. The relative importance of static and kinetic friction and also the effect of friction on anchorage has been a topic of debate. Lot of research work has been done to evaluate the various factors that affect friction and thus purportedly retards the rate of tooth movement. However, relevancy of these studies is questionable as the methodology used hardly simulates the oral conditions. Lately studies have concluded that more emphasis should be laid on binding and notching of archwires as these are considered to be the primary factors involved in retarding the tooth movement. This article reviews the various components involved in RS and the factors affecting friction. Further, research work should be carried out to provide cost effective alternatives aimed at reducing friction.
传统观点认为，在托槽与弓丝界面产生的滑动阻力（RS）与传递至牙齿的力有关。静摩擦力和动摩擦力的相对重要性以及摩擦力对支抗的影响一直是一个争论的话题。已经开展了大量研究工作来评估影响摩擦力从而据称会阻碍牙齿移动速度的各种因素。然而，这些研究的相关性值得怀疑，因为所采用的方法几乎没有模拟口腔环境。最近的研究得出结论，应更多地关注弓丝的结扎和开槽，因为这些被认为是阻碍牙齿移动的主要因素。本文综述了与滑动阻力相关的各种组成部分以及影响摩擦力的因素。此外，应该开展研究工作以提供旨在降低摩擦力的经济有效的替代方案。
