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Abstract：
Cross-sectional studies assess a population\'s health state and the prevalence of diseases or treatments. Few systematic reviews regarding the prevalence of periapical radiolucency (PARL) and nonsurgical root canal treatment (NSRCT) were conducted in the last decade. The goal of this study was to collect and review all updated and available cross-sectional studies that focus on the prevalence of both PARL and NSRCT in adult populations. It involves a systematic literature review of cross-sectional studies on the prevalence of PARL and NSRCT published from 1987 to 2022 in PubMed, Google Scholar, Web of Science, and Scopus with specific keywords used in the search process. A total of 52 articles were included in this systematic review. The majority of the included articles were from different populations. The overall prevalence of teeth with PARL was 43,522 (6.40%), while the prevalence of NSRCT teeth was 52,149 (7.67%). On the other hand, the overall prevalence of PARL in teeth that have received endodontic treatment and teeth that have not received endodontic treatment were 22,110 (3.25%) and 21,412 (3.15%), respectively. A meta-analysis was not performed due to underreporting of publication bias and the high degree of heterogeneity between studies. The overall risk of bias assessment revealed a low risk of bias in 25 (48%) of the included studies. The prevalence of NSRCT was higher at 7.67%, followed by PARL at approximately 6.40%. However, future studies are recommended to investigate the prevalence of both PARL and NSRCT in different patient populations.
摘要：
横断面研究评估了人群的健康状况以及疾病或治疗的患病率。在过去的十年中，很少进行有关根尖周围放射不透性（PARL）和非手术根管治疗（NSRCT）患病率的系统综述。这项研究的目的是收集和审查所有更新和可用的横断面研究，这些研究关注成人人群中PARL和NSRCT的患病率。它涉及1987年至2022年在PubMed上发表的关于PARL和NSRCT患病率的横断面研究的系统文献综述，谷歌学者，WebofScience,和Scopus与搜索过程中使用的特定关键字。本系统综述共纳入52篇文章。所包含的大多数文章来自不同的人群。PARL牙齿的总体患病率为43,522（6.40％），而NSRCT牙齿的患病率为52,149（7.67％）。另一方面,接受牙髓治疗的牙齿和未接受牙髓治疗的牙齿中PARL的总体患病率分别为22,110（3.25％）和21,412（3.15％），分别。由于发表偏倚的漏报和研究之间的高度异质性，未进行荟萃分析。总体偏倚风险评估显示，在25项(48%)研究中偏倚风险较低。NSRCT患病率较高,为7.67%,其次是PARL，约为6.40%。然而,建议未来研究调查不同患者人群中PARL和NSRCT的患病率.
