Faculty of Odonto-Stomatology, Hong Bang International University, Vietnam.
Department of Prosthodontics, Gerodontology and Oral Rehabilitation, Osaka University Graduate School of Dentistry, Osaka, Japan.
J Prosthodont Res. 2021 Oct 15;65(4):429-437. doi: 10.2186/jpr.JPR_D_20_00075. Epub 2020 Dec 4.
Purpose To clarify the rate of posterior residual ridge resorption (PRRR) in different denture treatments and the factors that can affect PRRR.Study selection A bibliographical electronic search was conducted on MeSH, Web of Science, and Ovid databases. Hand searching was also conducted. Longitudinal studies recording the average rate of PRRR in the mandible were included. The effect size was calculated based on the mean rate of PRRR with standard deviation and group size. The random-effects analysis was used to perform meta-analyses across qualified studies.Results A total of 2245 eligible studies were collected from the MeSH, Web of Science, and Ovid databases and hand searching. In the end, 19 studies met the inclusion criteria and were extracted. The average rate of PRRR in different mandibular denture treatments was assessed in this systematic review. The mean combined effect size was -1.05 ± 0.5 (95% confidence interval [CI]: -3.18-1.08) between four-implant overdentures and two-implant overdentures. The combined effect size was -0.01 ± 0.22 (95% CI: -0.93-0.82) between complete dentures and two-implant overdentures. Body mass index, number of dentures used, denture wearing habit, impression technique, artificial tooth material, and peri-implant bone resorption showed no significant effect on the rate of PRRR. Gender, denture material, and relining frequency showed a significant effect on the rate of PRRR.Conclusions This review summarized different average rates of PRRR in mandibular denture treatments. Meta-analyses have reported that four-implant overdenture treatments can lower the rate of PRRR compared to two-implant overdenture treatments. However, there was no significant difference in the treatment effect between the complete denture and two-implant overdenture treatments.
明确不同义齿治疗后下颌剩余牙槽嵴吸收（PRRR）的速率以及可能影响 PRRR 的因素。
在 MeSH、Web of Science 和 Ovid 数据库中进行文献电子检索，同时进行手工检索。纳入记录下颌 PRRR 平均速率的纵向研究。根据 PRRR 的平均速率、标准差和组大小计算效应量。使用随机效应分析对合格研究进行荟萃分析。
从 MeSH、Web of Science 和 Ovid 数据库以及手工检索中共收集到 2245 篇符合条件的研究。最终，19 项研究符合纳入标准并被提取。本系统评价评估了不同下颌义齿治疗方法的 PRRR 平均速率。四项研究的合并效应量为-1.05±0.5（95%置信区间[CI]：-3.18-1.08），两项研究的合并效应量为-0.01±0.22（95%CI：-0.93-0.82）。
本综述总结了下颌义齿治疗中不同的 PRRR 平均速率。荟萃分析报告称，与二种植体覆盖义齿治疗相比，四种植体覆盖义齿治疗可降低 PRRR 速率。然而，全口义齿与二种植体覆盖义齿治疗的效果之间没有显著差异。
