Albadri Sondos, Chau Yang See, Jarad Fadi
Department of Paediatric Dentistry, School of Dental Sciences, University of Liverpool, Liverpool, Merseyside, UK.
Dent Traumatol. 2013 Dec;29(6):469-73. doi: 10.1111/j.1600-9657.2012.01128.x. Epub 2012 Mar 5.
The use of mineral trioxide aggregate (MTA) to achieve root end closure has many advantages over the traditional calcium hydroxide (Ca(OH)2) technique including the reduced number of visits and the reduced mechanical damage to dentine. Limited studies have reported the outcome of using MTA as an apexification material and a one-stage obturation technique in non-vital immature teeth. This article illustrates three successful clinical cases where MTA was used as an apexification material. In case study one: Type 1 Dens Invaginatus tooth with incomplete root formation, case study two: an immature tooth that suffered pulp necrosis following an enamel and dentine fracture trauma and case study three: a non-vital tooth following an apical root fracture.
使用矿物三氧化物凝聚体（MTA）实现根尖封闭比传统的氢氧化钙（Ca(OH)₂）技术有许多优势，包括就诊次数减少以及对牙本质的机械损伤减少。有限的研究报道了在非活髓未成熟牙中使用MTA作为根尖诱导成形材料和一步法充填技术的结果。本文阐述了三个成功的临床病例，其中MTA被用作根尖诱导成形材料。病例一：1型牙内陷且牙根形成不全的牙齿；病例二：一颗因釉质和牙本质骨折创伤导致牙髓坏死的未成熟牙；病例三：根尖根折后的非活髓牙。
