Influence of the Timing of Post-endodontic Restoration Placement on the Survival of Root Canal-treated Teeth
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 541
- 试验地点
- 1
- 主要终点
- Success of endodontic treatment
研究概览
简要总结
The aim of this study is to assess the influence (i.e. type and timing) of post-endodontic restorations on the survival of root canal-treated teeth and to determine the influence of patient-, tooth-, treatment-, and restoration-specific parameters on longevity.
Patients who received a root-canal treatment between 1998 and 1999 with subsequent placement of an indirect restoration (e.g. crown, partial crown) will be retrospectively analyzed. Patient-, tooth-, treatment-, and restoration-specific parameters will be obtained from digital and paper-based dental records.
Survival and success of the root-canal treatments will be assessed using Kaplan-Meier statistics. Mean annual failure rates (mAFR) and median survival time will be calculated (Kaplan-Meier statistics). Potential predictive factors will be tested using log-rank tests and multi-variate Cox-regression analysis.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients who received a root-canal treatment followed by the placement of an indirect post-endodontic restoration (e.g. partial crowns, crowns) within the Department of Preventive Dentistry, Periodontology and Cariology between 1998 and 1999.
排除标准
- 未提供
研究组 & 干预措施
Indirect post-endodontic restorations
Indirect post-endodontic restorations (e.g. crown, partial crown).
干预措施: No patient treatment is associated with the study (Other)
结局指标
主要结局
Success of endodontic treatment
时间窗: 1998-2023
Success is defined as the time-interval without a subsequent endodontic re-intervention or extraction of the tooth.
次要结局
- Survival of the tooth(1998-2023)
研究者
Philipp Kanzow, Prof. Dr. med. dent., Dr. rer. medic.
Senior Lecturer
University Medical Center Goettingen