Department of Conservative Dentistry and Endodontics, Academy of Medical Education's Dental College and Hospital, IV/29, Kalamma St., Bellary District 583101, Raichur District, Karnataka State, India.
J Am Dent Assoc. 2011 Jun;142(6):646-50. doi: 10.14219/jada.archive.2011.0246.
Crown-root fractures of anterior teeth are relatively common but often time consuming and difficult to treat. In some cases, the clinician can complete the treatment in a single visit by reattaching the fractured fragment.
In this case report, the authors describe the treatment of a complicated crown-root fracture of the maxillary right central and lateral incisors. Among the treatment options for such cases, the treating clinician considered a single-visit rebonding procedure to be the best choice. The treatment consisted of a multidisciplinary approach involving coronal fragment removal, gingivectomy to expose the margins and single-visit endodontic therapy, followed by a rebonding of the fractured fragment by means of prefabricated posts.
Evaluation at 12 months indicated stable re-attachment of the fragments, good esthetics and good periodontal health.
The reattachment of a tooth fragment is a viable, conservative technique that restores function and esthetics, and clinicians should consider it when treating patients with coronal fractures of the anterior teeth.
前牙冠根折较为常见，但往往耗时且治疗难度大。在某些情况下，临床医生可以通过重新粘接折断的碎片在一次就诊中完成治疗。
本病例报告描述了上颌右侧中切牙和侧切牙复杂冠根折的治疗。对于此类病例的治疗方案，临床医生认为单就诊次再粘接术是最佳选择。该治疗包括多学科方法，涉及冠部碎片去除、牙龈切除术以暴露边缘和单就诊次根管治疗，然后通过预制桩将折断的碎片重新粘接。
12 个月的评估表明碎片的重新附着稳定，美观效果好，牙周健康状况良好。
牙体碎片的再附着是一种可行的保守技术，可恢复功能和美观，临床医生在治疗前牙冠部骨折的患者时应考虑该技术。
