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89例根管治疗失败原因分析

Modern Diagnosis & Treatment(2012)

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Abstract
选择第一次进行根管治疗失败的126颗患牙的临床资料进行回顾性分析。该组病例中,进行根管治疗后,78颗根管填充失败,其中32颗(42.03%)根尖周围发生病变,28颗(35.90%)因为根管欠填充,4颗(5.13%)根管超填充,15颗(19.23%)根管被感染,6颗(7.69%)根管遗漏,全部根管填充失败患牙均进行再次治疗,一年后要求患者进行复检,69颗回访(88.46%)。回访的患牙中,成功59颗,好转7颗,失败3颗,总有效率为95.65%。根管治疗失败的临床原因主要有冠渗漏、遗漏根管、根管充填欠佳,而预防治疗失败的两大原则是杜绝继发性感染和去除感染源。
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