Lin C C, Tsai Y L, Li U M, Chang Y C, Lin C P, Jeng J H
Section of Endodontics, Department of Dentistry, National Taiwan University Hospital and National Taiwan University Medical College, Taipei, Taiwan.
Int Endod J. 2008 May;41(5):442-7. doi: 10.1111/j.1365-2591.2007.01360.x. Epub 2008 Jan 19.
To report two cases of palatal root fracture in maxillary molars that were successfully managed in the short term by root canal treatment and root amputation.
In the first case, a 48-year-old woman with bony destruction and a deep periodontal pocket on the palatal root of tooth 26 (FDI) underwent root canal treatment. Bleeding into the palatal canal and radiolucent lines over the root suggested a fracture. Further evidence was provided by an electronic apex locator. Subsequent surgery confirmed the presence of a horizontal root fracture and the fractured root was removed. In the second case, a 75-year-old woman presented with pain from the left posterior teeth. Clinical examination revealed an oblique root fracture of tooth 27 palatal roots with abscess formation and a deep periodontal pocket. Palatal root amputation and odontoplasty were performed. This was followed by root canal treatment. Both teeth were preserved in the short term and early healing of these two cases was uneventful.
Horizontal/oblique root fracture of the palatal root in molars is rare. A combination of periodontal and root canal treatment and palatal root amputation may allow short-term preservation of functional teeth.
报告两例上颌磨牙腭根骨折病例,通过根管治疗和牙根切除术在短期内成功治疗。
第一例,一名48岁女性,26号牙(FDI)腭根有骨质破坏和深牙周袋,接受了根管治疗。腭根管内出血及牙根上的透射线提示骨折。电子根尖定位仪提供了进一步证据。后续手术证实存在水平根折,折断的牙根被拔除。第二例,一名75岁女性,左后牙疼痛。临床检查发现27号牙腭根斜行根折伴脓肿形成和深牙周袋。进行了腭根切除术和牙体成形术。随后进行了根管治疗。两颗牙齿均在短期内得以保留,这两例的早期愈合过程顺利。
磨牙腭根水平/斜行根折罕见。牙周治疗、根管治疗和腭根切除术相结合可使功能性牙齿在短期内得以保留。