J Endod:外伤性撕脱恒牙再植的存留分析

2020-01-26 lishiting MedSci原创

牙齿再植是治疗撕脱牙齿的一种选择,尽管其长期预后显示出很大的可变性。此外,对于此类牙齿存留率的分析以评估牙齿的最终命运的研究较少。这篇研究的目的是为了评估外伤性撕脱恒牙再植后的存留率以及它的临床和人口统计学决定因素。

牙齿再植是治疗撕脱牙齿的一种选择,尽管其长期预后显示出很大的可变性。此外,对于此类牙齿存留率的分析以评估牙齿的最终命运的研究较少。这篇研究的目的是为了评估外伤性撕脱恒牙再植后的存留率以及它的临床和人口统计学决定因素。

研究收集了576名在巴西Federal University of Minas Gerais牙创伤外科就诊的患者病例,分析他们的临床和X线影像数据。采用Kaplan-Meier曲线和多元Cox回归模型检测再植牙齿口内存在功能的可能性并确定影响预后的因素。

结果显示,再植牙齿5.5年后的存留率为50%。未发育成熟牙齿的缺失率增加至51.3% (P = .002)。距离外伤的时间,患者年龄每增长一岁(上限至16年),再植牙齿的缺失率下降15% (P < .001)。保存在牛奶内的撕脱牙齿再植后的缺失率比那些干燥保存的牙齿下降56.4% (P = .015)。

结论:再植牙齿5.5年后的整体存留率为50%。牙根发育的晚期阶段与外伤后患者的年龄增长(直至16年)对于牙齿的存留是良好的预后因素。撕脱牙齿存储于牛奶中也会增加再植后牙齿的存留。

原始出处:

Coste SC, Silva EFE, et al. Survival of Replanted Permanent Teeth after Traumatic Avulsion. J Endod. 2020 Jan 17. pii: S0099-2399(19)30918-5. doi: 10.1016/j.joen.2019.11.013.

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