Hepworth M J, Friedman S
Faculty of dentistry, University of Toronto, ON.
J Can Dent Assoc. 1997 May;63(5):364-71.
The principal modalities available to manage endodontic treatment failures are orthograde retreatment and apical surgery. Both modalities have specific advantages, clinical implications, and risks, and their selection involves a complex decision-making process. A review of the literature pertaining to the treatment outcome of each modality was undertaken to establish an objective reference for practitioners involved in the management of endodontic treatment failures. Based on a weighted average calculation of the results reported in the reviewed studies, the orthograde retreatment of teeth associated with apical periodontitis results in a success rate of 66 per cent, an uncertain healing rate of 11 per cent, and a failure rate of 23 per cent. Apical surgery results in a success rate of 59 per cent, an uncertain healing rate of 22 per cent, and a failure rate of 19 per cent. These figures are discussed with reference to the characteristics of the reviewed studies. It appears that many of the reviewed studies have lesser relevance today, due to the current technical improvements in both treatment and modalities.
处理牙髓治疗失败的主要方法是根管再治疗和根尖手术。这两种方法都有特定的优势、临床意义和风险，其选择涉及复杂的决策过程。为参与牙髓治疗失败处理的从业者建立一个客观参考，对与每种方法治疗结果相关的文献进行了综述。根据综述研究报告结果的加权平均计算，与根尖周炎相关牙齿的根管再治疗成功率为66%，愈合情况不确定率为11%，失败率为23%。根尖手术成功率为59%，愈合情况不确定率为22%，失败率为19%。结合综述研究的特点对这些数据进行了讨论。由于目前治疗和方法方面的技术改进，似乎许多综述研究如今的相关性较低。
