J Endod:牙髓再生治疗的临床数据:是即刻还是延迟诱导再生?

2017-08-30 MedSci MedSci原创

临床医师在治疗年轻患者未发育完成的恒牙时会面对许多挑战。一些病例报告显示,即刻血块诱导是一种治疗未发育完成恒牙较为成功的选择。但是,还没有实验性研究或临床试验对这个问题进行系统阐述。这篇报道的研究者通过设计一项临床试验试图阐明即刻或延迟诱导方案对于治疗成功与否没有差异。

临床医师在治疗年轻患者未发育完成的恒牙时会面对许多挑战。一些病例报告显示,即刻血块诱导是一种治疗未发育完成恒牙较为成功的选择。但是,还没有实验性研究或临床试验对这个问题进行系统阐述。这篇报道的研究者通过设计一项临床试验试图阐明即刻或延迟诱导方案对于治疗成功与否没有差异。在确定牙髓坏死后,研究对患者随机分配即刻或延迟诱导治疗的方法。在延迟诱导组中,研究按照美国牙髓病学家协会的指导方针,使用氢氧化钙对15颗患牙实施根管内药疗法。在即刻诱导组中,研究对13颗患牙在第一次就诊时实施即刻血块诱导治疗法。施治牙齿在术后1、3和12个月进行评估。由3名评估者分别对根尖愈合情况进行鉴定。采用Pearson卡方检验或Fisher精确检验比较2组方法治疗成功率的差异。结果显示,在参与此项目的25个受试者 (28颗牙齿)中,有19人完成了为期12个月的随访。延期诱导组的治疗成功率为71%,而即刻诱导组的成功率为33%。外伤是大多数病例(79%)发生的病因。所有治疗成功的病例都始发于牙根发育的阶段9 (Nolla),并且大多数都表现为2型愈合。牙根形成的阶段和致病原因可能是采取任何治疗策略的决定性因素。结论:

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    2017-11-29 jxrzshh
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