根管居中能力：一项牙髓治疗挑战。
Canal-centering ability: An endodontic challenge.
作者信息
Kandaswamy Deivanayagam, Venkateshbabu Nagendrababu, Porkodi Ilango, Pradeep Gali
机构信息
Department of Conservative Dentistry and Endodontics, Sri Ramachandra Dental College, Porur, Chennai - 600 116, India.
出版信息
J Conserv Dent. 2009 Jan;12(1):3-9. doi: 10.4103/0972-0707.53334.
Abstract
During instrumentation of the root canal, it is important to develop a continuously tapered form and to maintain the original shape and position of the apical foramen. However, the presence of curvatures may cause difficulty in root canal instrumentation. The ability to keep the instruments centered is essential to provide a correct enlargement, without excessive weakening of the root structure. Several studies have shown that Ni-Ti instruments remain significantly more centered and demonstrated less canal transportation than stainless steel files. Considerable research has been undertaken to understand the several factors related to an instrument's canal-centering ability. In this article, we have discussed the influence of various parameters such as alloys used in the manufacture of instruments, instrument cross-section, taper, and have given tips on canal-centering ability.
摘要
在进行根管预备时，形成连续的锥度并保持根尖孔的原始形状和位置非常重要。然而，根管弯曲可能会给根管预备带来困难。保持器械在根管中心的能力对于正确扩大根管、避免过度削弱根管结构至关重要。多项研究表明，与不锈钢锉相比，镍钛器械在根管中保持居中的能力显著更强，根管偏移也更少。为了解与器械根管居中能力相关的多种因素，人们开展了大量研究。在本文中，我们讨论了诸如器械制造中使用的合金、器械横截面、锥度等各种参数的影响，并给出了关于根管居中能力的建议。
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