Jonas Adrian Helmut Vogler, William Abrahamian, Sarah Marie Reich, Bernd Wöstmann, Peter Rehmann
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引用次数: 0
摘要
伸缩冠固位义齿(TCD)是部分无牙颌患者最常见的修复体类型之一;然而,如果牙齿被用作 TCD 的基牙,则桩核治疗(PC)的存活率最差。由于额外的轴向力,基牙折断是导致 TCD 失败的常见原因;因此,通常需要进行 PC 治疗来重新安装现有的伸缩冠(TC)。然而,关于 PC 治疗是用于基牙折断后重新安装 TC(PC2),还是在 TCD 治疗时已经安装 PC(PC1),目前还没有临床存活数据。共对 246 名患者的 399 次 PC 治疗进行了回顾性评估,随访时间长达 17.33 年。对档案进行了 PC1 和 PC2 分析。此外,还记录了颌骨、牙齿类型、粘结材料、PC 材料、骨附着、治疗师和失败原因的影响。统计分析采用了卡普兰-梅耶(Kaplan-Meier)和考克斯回归分析。PC2 的存活概率明显低于 PC1(p < 0.001)。此外,安装 PC 冠时患者的骨附着情况和年龄对存活率也有影响(p < 0.001)。因此,PC2 应与患者仔细讨论,而 PC1 则应优先用于牙髓治疗基牙的 TCD。
Post and Core Treatment to Refit Telescopic Crown-Retained Dentures after Abutment Tooth Fracture: An Evaluation of Therapy by Retrospective Survival Analysis.
Telescopic crown-retained dentures (TCDs) are one of the most common types of prosthetic restorations for partially edentulous patients; however, post and core (PC) treatment shows the worst survival probability if the tooth is used as an abutment for the TCD. Due to extra axial forces, abutment tooth fracture is a common cause of failure for TCDs; thus, PC treatment is often needed to refit the existing telescopic crown (TC). However, there are no clinical survival data on whether the PC treatment was used to refit the TC after abutment tooth fracture (PC2) or the PC was already fitted at the time of TCD treatment (PC1). A total of 246 patients with 399 PC treatments were retrospectively evaluated for follow-ups up to 17.33 years. The files were analysed for PC1 and PC2. Furthermore, the influence of the jaw, type of tooth, luting material, PC material, bone attachment, therapist and cause of failure was recorded. For statistical analysis, Kaplan-Meier and Cox regression analyses were conducted. PC2 showed highly significant lower survival probabilities than PC1 (p < 0.001). Moreover, the bone attachment and the age of the patient at the time of fitting the PC crown had an influence on the survival (p < 0.001). Therefore, PC2 should be carefully discussed with the patient and PC1 should be favoured in endodontically treated abutment teeth for TCDs.