J Endod:根内材料对施以MTA根尖诱导的未发育成熟牙齿发生根裂的影响比较:一项回顾性研究

2019-07-05 lishiting MedSci原创

这篇研究的目的是为了比较施以MTA根尖诱导的未发育成熟牙齿通过加强根内修复(复合树脂或纤维状)或未加强根内修复(牙胶尖或MTA)而发生根裂导致牙齿拔除的几率。

这篇研究的目的是为了比较施以MTA根尖诱导的未发育成熟牙齿通过加强根内修复(复合树脂或纤维状)或未加强根内修复(牙胶尖或MTA)而发生根裂导致牙齿拔除的几率。

研究基于纳入和淘汰标准选取了1996至2017年间的施以MTA根尖诱导的牙髓坏死未发育完成牙齿作为评估对象。从牙科图标和X线影像中获取根内材料以及术前和治疗因素。鉴定发生严重根裂的几率。采用Kaplan-Meier survival分析和Cox proportional hazard模型展示存留率和倾向因素,显著性水平设置为.05。

结果显示,平均召回期为30个月。加强性材料进行牙齿修复发生折裂的几率为5.5%,与未施以加强性材料修复(8.3%)之间无明显差异。并且,纤维桩和复合树脂组之间发生折裂的几率无显著性差异。研究检测到2种明显影响根裂发生率的倾向因素:术前炎症性根外吸收(hazard ratio = 26.86; P < .05)和患者年龄> 15岁(hazard ratio = 8.60, P < .05)。

结论:MTA根尖诱导的未发育完成牙齿施以加强或未加强根内材料修复展现出相似的折裂几率。术前炎症性根外吸收和患者年龄> 15岁是明显增加根裂发生的2个倾向因素。

原始出处:

Danwittayakorn S, Banomyong D, et al. Comparison of the Effects of Intraradicular Materials on the Incidence of Fatal Root Fracture in Immature Teeth Treated with Mineral Trioxide Aggregate Apexification: A Retrospective Study. J Endod. 2019 Jun 24. pii: S0099-2399(19)30366-8. doi: 10.1016/j.joen.2019.05.008.

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    2019-07-07 neurowu
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    2019-07-07 liuxiaona
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    2019-07-07 zhouqu_8
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    2019-07-07 shanyongle
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