Lichota Damian, Lipski Mariusz, Woźniak Krzysztof, Buczkowska-Radlińska Jadwiga
Department of Conservative Dentistry, Pomeranian Medical University, Szczecin, Poland.
J Endod. 2008 Jun;34(6):756-8. doi: 10.1016/j.joen.2008.01.013. Epub 2008 Mar 19.
Dens invaginatus type 3 is an anomaly characterized by an infolding of enamel and dentin that can extend up to the root apex and might present difficulties with respect to its diagnosis and treatment because of canal morphology. This article describes an unusual case of the maxillary canine having a type 3 dens invaginatus, necrotic pulp, and an associated large periradicular lesion treated by conventional root canal therapy. After gaining access to the pulp chamber, the primary canal and the invagination were localized, negotiated, enlarged, and filled with calcium hydroxide. Three weeks later the canal and the invagination were obturated with gutta-percha and restored. At 24-month recall satisfactory bone healing had occurred.
3型牙内陷是一种异常情况，其特征为釉质和牙本质向内折叠，可延伸至根尖，由于根管形态的原因，其诊断和治疗可能会存在困难。本文描述了一例上颌尖牙患有3型牙内陷、牙髓坏死并伴有较大根尖周病变的不寻常病例，该病例采用传统根管治疗方法进行治疗。在进入髓腔后，确定了主根管和内陷部位，对其进行疏通、扩大，并充填氢氧化钙。三周后，用牙胶对根管和内陷部位进行充填并修复。在24个月的复查时，已出现满意的骨愈合。
