Department of Conservative Dentistry, Yonsei University College of Dentistry, Seoul, Korea.
Institute of Health Insurance and Clinical Research, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
J Endod. 2019 Oct;45(10):1192-1199. doi: 10.1016/j.joen.2019.07.004. Epub 2019 Aug 19.
The purpose of the current population-based study was to analyze the 5-year survival rate of teeth that received nonsurgical endodontic treatment. Specifically, the variables affecting the 5-year survival rates of endodontically treated teeth were analyzed.
The present study included all endodontically treated teeth reported in 2010 in the National Health Insurance Cohort database of the Republic of Korea. By tracing the dental records of the sample to the end of 2015, the 5-year survival rates of the initial root canal treatment (RCT) and re-RCT were analyzed. Gender, age, institution type, diagnosis, arch type, tooth type, number of visits, and rubber dam usage were included in the analyses as confounding variables.
In total, 2,866,749 teeth received initial RCT, and 173,429 teeth received re-RCT. Five-year survival rates were 90.85% and 88.42%, respectively. The survival rate of teeth that received initial RCT was significantly higher than that of those that received re-RCT. Specifically, re-RCT showed a significantly higher rate of extraction within 12 months than during other intervals. Furthermore, the following characteristics significantly positively affected the 5-year tooth survival rate: being female, <20 years of age, hospital as the institution type, mandibular teeth, anterior teeth, initial RCT, and use of rubber dam.
Because of its high 5-year survival rate, endodontic treatment is an effective method for maintaining natural teeth.
本研究旨在分析接受非手术根管治疗的牙齿的 5 年生存率。具体来说，分析了影响根管治疗后牙齿 5 年生存率的变量。
本研究纳入了韩国国家健康保险队列数据库中 2010 年报告的所有接受根管治疗的牙齿。通过对样本的牙科记录进行追踪，直至 2015 年底，分析了初始根管治疗（RCT）和再 RCT 的 5 年生存率。性别、年龄、机构类型、诊断、牙弓类型、牙齿类型、就诊次数和橡皮障使用情况被纳入分析作为混杂因素。
共有 2866749 颗牙接受了初始 RCT，173429 颗牙接受了再 RCT。5 年生存率分别为 90.85%和 88.42%。接受初始 RCT 的牙齿的生存率明显高于接受再 RCT 的牙齿。具体来说，再 RCT 在 12 个月内拔牙的比例明显高于其他时间段。此外，以下特征显著正向影响 5 年牙齿生存率：女性、<20 岁、医院作为机构类型、下颌牙齿、前牙、初始 RCT 和使用橡皮障。
由于其 5 年生存率高，根管治疗是维持天然牙齿的有效方法。
