Canoglu Ebru, Canoglu Harun, Aktas Alper, Cehreli Zafer C
Department of Pediatric Dentistry, Faculty of Dentistry, Hacettepe University, Ankara, TURKIYE.
Eur J Dent. 2012 Jul;6(3):330-4.
Isolated bilateral macrodontia of mandibular second premolars is an extremely rare dental anomaly with only 5 cases reported to date. This case report presents clinical and radiographic findings of isolated bilateral macrodontia in a 12-year-old child. The patient was referred to the clinic with local crowding of mandibular posterior teeth. Radiographic findings revealed the presence of impacted macrodont mandibular second premolars and their distinct morphological appearance, characterized by large, multitubercular, molariform crowns, and tapering, single roots. Following surgical removal of the impacted premolars, orthodontic therapy was initiated to correct the malocclusion. Along with the features and treatment of this rare anomaly, this case report also illustrates the benefits, in terms of treatment planning and surgical technique, of supplementing conventional radiography with cone-beam computed tomography to localize the macrodont premolars and accurately establish their relationship with the neighboring roots and anatomic structures.
孤立性双侧下颌第二前磨牙巨大牙是一种极其罕见的牙齿异常，迄今为止仅报道过5例。本病例报告展示了一名12岁儿童孤立性双侧下颌第二前磨牙巨大牙的临床和影像学表现。该患者因下颌后牙局部拥挤被转诊至诊所。影像学检查发现存在埋伏阻生的巨大下颌第二前磨牙及其独特的形态外观，其特征为冠大、多结节、磨牙样，牙根呈锥形且单一。在手术拔除埋伏阻生前磨牙后，开始进行正畸治疗以纠正错牙合畸形。除了这种罕见异常的特征和治疗方法外，本病例报告还说明了在治疗计划和手术技术方面，用锥形束计算机断层扫描补充传统放射摄影以定位巨大牙前磨牙并准确确定其与相邻牙根和解剖结构关系的益处。
