Survival analysis of mandibular complete dentures with acrylic-based resilient liners
Survival analysis of mandibular complete dentures with acrylic-based resilient liners
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DOI：
10.1111/j.1741-2358.2012.00658.x
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发表时间：
2013-09-01
期刊：
影响因子：
2
通讯作者：
Kawai, Yasuhiko
中科院分区：
文献类型：
--
作者：
Kimoto, Suguru;Kimoto, Katsuhiko;Kawai, Yasuhiko
目的：这个长期的随机对照试验的目的是比较使用传统的丙烯酸树脂（CAR）构建的义齿使用丙烯酸树脂为基础的弹性衬垫（ARL）构建的义齿的寿命：材料和方法：基本上进行了后续研究，每年的电话给每个67名参与者。单因素分析采用Kaplan-Meier法和寿命表分析。考克斯比例风险检验被用作最终模型，用于统计学调整预测变量，如性别，临床医生类型，下颌义齿类型和年龄在denture delivery.Results：义齿类型可能会影响义齿的生存时间，而性别和临床医生类型没有。使用丙烯酸基弹性义齿衬垫的组的义齿存活时间比使用传统丙烯酸树脂义齿的组短两倍。年轻的参与者有可能有较短的义齿生存时间比老年participator.Conclusion：我们得出结论，下颌全口义齿使用ARL构建的可能性是两倍的义齿使用CAR构建有较短的义齿生存时间，主要是因为材料的恶化。
Objective: The purpose of this long-term randomised controlled trial was to compare the longevity of dentures constructed using a conventional acrylic resin (CAR) to that of dentures constructed using an acrylic-based resilient liner (ARL).Materials and methods: The follow-up study was essentially carried out by annual telephone calls to each of the 67 participants. The Kaplan-Meier method and life-table analysis were used for univariate analyses. The Cox proportional-hazards test was used as a final model for statistically adjusting predictor variables such as sex, clinician type, mandibular denture type and age at denture delivery.Results: The denture type was likely to affect the survival time of the dentures, while the sex and clinician type were not. The group using acrylic-based resilient denture liners had twice the risk of having shorter denture-survival times than those using conventional acrylic resin dentures. Younger participants were likely to have a reduced risk of having shorter denture-survival times than older participants.Conclusion: We conclude that mandibular complete dentures constructed using ARL are twice as likely as dentures constructed using CAR to have shorter denture survival times, mainly because of material deterioration.