Department of Conservative Dentistry and Periodontology, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany.
Dent Traumatol. 2021 Apr;37(2):208-214. doi: 10.1111/edt.12613. Epub 2020 Dec 4.
BACKGROUND/AIM: When patients have saved tooth fragments in case of crown fractures, reattachment is considered as the treatment of choice. With respect to the need to provide clinical outcome data regarding adhesively reattached fragments, the aim of this practice-based clinical study was to evaluate the survival of reattached fragments after crown fractures in permanent teeth.
Records from patients treated at Ludwig-Maximilians-University between 2004 and 2017 were analyzed to collect clinical and radiographic data regarding the management of fractured teeth that were treated with an adhesive reattachment. The study population consisted of 109 patients comprising 135 reattached fragments divided into uncomplicated (N = 84/135) and complicated (N = 51/135) crown fractures. The Kaplan-Meier Survival estimator was used to estimate the survival probability of primary reattachments after uncomplicated and complicated crown fractures.
Overall, 77.4% (N = 65/84) and 66.6% (N = 34/51) of the primarily applied reattachments in uncomplicated fractured teeth and complicated fractured teeth, respectively, survived over the period of observation. The survival rate for adhesive reattachment in all teeth was 84.4% (N = 114/135) after 608.2 days (±983.1 days). The data further suggest that in the case of a detachment, repeated reattachment might be a valuable restoration strategy.
Adhesive reattachment is a good first-choice treatment option in cases of crown fractures when the fractured fragment has been saved.
背景/目的：当患者保存了牙冠折裂片时，通常会选择将其重新黏合。鉴于需要提供关于黏合重新黏附的牙折裂片的临床结果数据，本基于实践的临床研究旨在评估恒牙冠折后重新黏附的牙折裂片的存活率。
分析了 2004 年至 2017 年期间在路德维希-马克西米利安-慕尼黑大学接受治疗的患者的记录，以收集有关使用黏合重新黏附治疗牙折的临床和影像学数据。研究人群由 109 名患者组成，共 135 个重新黏附的折裂片，分为无并发症（N=84/135）和复杂（N=51/135）牙冠折。Kaplan-Meier 生存估计器用于估计无并发症和复杂牙冠折后初次黏附的生存概率。
总体而言，无并发症牙折中初次应用的黏附修复体的存活率为 77.4%（N=65/84），复杂牙折中为 66.6%（N=34/51）。在观察期间，所有牙齿的黏附修复体的存活率为 84.4%（N=114/135），黏附修复体的随访时间为 608.2±983.1 天。数据进一步表明，在发生脱落的情况下，重复重新黏附可能是一种有价值的修复策略。
当保存了牙冠折裂片时，黏合重新黏附是牙冠折的首选治疗方法。
