Mohammadi Melika, Zarei Mina
Department of endodontics, Faculty of dentistry, Mashhad University of medical science, Mashhad, Iran.
Iran Endod J. 2024;19(3):228-231. doi: 10.22037/iej.v19i3.45174.
A complete understanding of canal morphology is essential to achieve successful endodontic treatment. Although mandibular second premolars are reported to have usually only one root canal at the apex, in this case we reported a mandibular second premolar with three root canals and taurodont morphology. A patient was referred to the endodontic department at Mashhad Faculty of Dentistry with a chief complaint of pain in her mandibular right second premolar tooth. The diagnosis of pulpal necrosis and chronic apical periodontitis was established. The initial radiograph showed a taurodont premolar with two roots. However, with cone-beam computed tomography assistance, three root canals were confirmed. The root canal treatment process was successfully managed with a dental operating microscope. Using cone-beam computed tomography and a dental operating microscope greatly facilitated the determination of tooth morphology and successful following nonsurgical endodontic treatment.
全面了解根管形态对于成功进行牙髓治疗至关重要。尽管据报道下颌第二前磨牙根尖通常只有一个根管，但在此病例中，我们报告了一例具有三个根管和牛牙样形态的下颌第二前磨牙。一名患者因右下颌第二前磨牙疼痛为主诉被转诊至马什哈德牙科学院牙髓科。确诊为牙髓坏死和慢性根尖周炎。最初的X线片显示为一颗有两个牙根的牛牙样前磨牙。然而，在锥形束计算机断层扫描的辅助下，确认有三个根管。使用牙科手术显微镜成功完成了根管治疗过程。使用锥形束计算机断层扫描和牙科手术显微镜极大地有助于确定牙齿形态并成功完成非手术牙髓治疗。
