Makowiecki P, Witek A, Pol J, Buczkowska-Radlińska J
Department of Conservative Dentistry, Pomeranian Medical University, Szczecin, Poland.
Int Endod J. 2014 Sep;47(9):889-95. doi: 10.1111/iej.12221. Epub 2014 Jan 9.
To demonstrate the maintenance of pulp health in a tooth with a fractured root without any complications or endodontic treatment and the advantage of cone bean computed tomography (CBCT) compared with traditional radiographs in the diagnosis of root fractures.
The horizontal fracture of a maxillary central incisor is described that was an incidental finding on a routine radiographic examination 17 years after trauma. The tooth was asymptomatic. Intra-oral radiography revealed a complicated multiple root fracture with separation of the root fragments, which was not confirmed by CBCT. This case report illustrates spontaneous healing of root fracture and the reparative potential in the area of root fracture including preservation of pulp health and also demonstrates that CBCT is a more reliable imaging technique than conventional radiographs regarding root fracture diagnosis.
The dental pulp is characterized by the ability to heal spontaneously in cases of root fracture. CBCT has advantages in diagnosing root fractures over intra-oral radiographs. CBCT should be employed with caution due to its increased radiation dose compared with periapical radiography.
证明牙根折断的牙齿在未经任何并发症处理或牙髓治疗的情况下牙髓健康得以维持，以及锥形束计算机断层扫描（CBCT）相较于传统X线片在诊断牙根折断方面的优势。
描述了一例上颌中切牙水平折断病例，该病例是在创伤17年后的常规X线检查中偶然发现的。患牙无症状。口内X线片显示为复杂的多根折断，根段分离，但CBCT未证实这一情况。本病例报告说明了牙根折断的自发愈合以及牙根折断区域的修复潜力，包括牙髓健康的保存，同时也表明在牙根折断诊断方面，CBCT是一种比传统X线片更可靠的成像技术。
牙髓的特点是在牙根折断情况下具有自发愈合的能力。CBCT在诊断牙根折断方面优于口内X线片。由于与根尖片相比，CBCT的辐射剂量增加，因此应谨慎使用。
