Department of Dentistry and Maxillofacial Surgery, Medical University, Graz, Austria.
Oper Dent. 2012 Jan-Feb;37(1):98-106. doi: 10.2341/11-143-S. Epub 2011 Sep 27.
This article presents two cases of large invasive cervical resorption (ICR) with maintenance of pulp vitality after treatment with mineral trioxide aggregate (MTA) in a sandwich technique.Invasive cervical resorption is a relatively uncommon but aggressive form of external resorption, primarily caused by dental trauma or injury of the cervical periodontal attachment. The resorptive process does not penetrate into the root canal, and the pulp is not involved in the first phase of the resorption. This feature differentiates external resorption from internal resorption. In most cases, invasive cervical resorption is found during routine radiographic or clinical examination. Different materials have been proposed for the treatment of external cervical resorption. Therapy can be effective when it 1) removes the etiological factors and 2) interrupts the progressive resorption mechanism.The key learning points of this article are the following: treatment strategy to arrest the cervical resorption process and to prevent further resorption without changing pulpal vitality and successful seal of invasive cervical resorption defect using MTA with a sandwich technique.
本文介绍了两例外生性侵袭性牙颈部吸收（ICR）病例，经矿化三氧化物凝聚体（MTA）三明治技术治疗后保留了牙髓活力。侵袭性牙颈部吸收是一种相对少见但侵袭性较强的牙外吸收形式，主要由牙外伤或牙颈部牙周附着损伤引起。吸收过程不会穿透根管，牙髓也不会参与吸收的第一阶段。这一特征将外吸收与内吸收区分开来。在大多数情况下，侵袭性牙颈部吸收是在常规放射学或临床检查中发现的。不同的材料已被提议用于治疗外生性牙颈部吸收。当治疗能 1）去除病因和 2）中断进行性吸收机制时，治疗可能有效。本文的关键学习要点如下：治疗策略是阻止牙颈部吸收过程，防止进一步吸收，同时不改变牙髓活力，并使用 MTA 三明治技术成功封闭侵袭性牙颈部吸收缺损。
