Lim Adrian, Le Clerc Justine
UFR Odontologie, Univ Rennes 1, Rennes, France.
Pôle Odontologie, CHU Rennes, Rennes, France.
Aust Endod J. 2019 Dec;45(3):414-419. doi: 10.1111/aej.12291. Epub 2018 Aug 16.
Taurodontism is a rare embryologic anomaly of teeth, defined by an apical displacement of the furcation of roots and enlarged pulp chambers. Taurodontism has been classified as hypo-, meso- or hypertaurodontism according to the severity of the anomaly. The aim of this case report was to illustrate a clinical case with multiple bilateral taurodonts and to describe the endodontic management of the hypertaurodontic mandibular left second molar with a C-shaped canal and extensive dental pulp calcifications. A healthy 20-year-old male patient was referred for the endodontic treatment of his lower left second molar. Cone beam computed tomography revealed a C-shaped root canal configuration and several dental pulp calcifications in this tooth. The endodontic treatment was performed in two appointments under an operating dental microscope. A panoramic radiograph, made during the 18 months follow-up appointment, revealed nine other taurodontic molars, most of them associated with dental pulp calcifications.
牛牙样牙是一种罕见的牙齿胚胎学异常，其定义为牙根分叉向根尖移位且髓腔扩大。根据异常的严重程度，牛牙样牙已被分为低、中或高牛牙样牙。本病例报告的目的是举例说明一例双侧多发性牛牙样牙的临床病例，并描述伴有C形根管和广泛牙髓钙化的高牛牙样下颌左第二磨牙的根管治疗。一名20岁健康男性患者因左下第二磨牙的根管治疗前来就诊。锥形束计算机断层扫描显示该牙为C形根管结构且有多处牙髓钙化。根管治疗在手术显微镜下分两次进行。在18个月的随访复诊时拍摄的全景X线片显示还有另外9颗牛牙样磨牙，其中大多数伴有牙髓钙化。
