Mortazavi Hamed, Khodadoustan Amin, Kheiri Aida, Kheiri Lida
Department of Oral Medicine, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Member of Iranian Association of Periodontology, Private Practice, Tehran, Iran.
J Korean Assoc Oral Maxillofac Surg. 2021 Jun 30;47(3):153-174. doi: 10.5125/jkaoms.2021.47.3.153.
Dental implants are popular for dental rehabilitation after tooth loss. The goal of this systematic review was to assess bone changes around bone-level and tissue-level implants and the possible causes. Electronic searches of PubMed, Google Scholar, Scopus, and Web of Science, and a hand search limited to English language clinical trials were performed according to PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines up to September 2020. Studies that stated the type of implants used, and that reported bone-level changes after insertion met the inclusion criteria. The risk of bias was also evaluated. A total of 38 studies were included. Eighteen studies only used bone-level implants, 10 utilized tissue-level designs and 10 observed bone-level changes in both types of implants. Based on bias assessments, evaluating the risk of bias was not applicable in most studies. There are vast differences in methodologies, follow-ups, and multifactorial characteristics of bone loss around implants, which makes direct comparison impossible. Therefore, further well-structured studies are needed.
牙种植体在牙齿缺失后的牙修复中很受欢迎。本系统评价的目的是评估骨水平种植体和软组织水平种植体周围的骨变化及其可能原因。根据PRISMA（系统评价和Meta分析的首选报告项目）指南，截至2020年9月，对PubMed、谷歌学术、Scopus和科学网进行了电子检索，并进行了仅限于英文临床试验的手工检索。说明所使用种植体类型并报告植入后骨水平变化的研究符合纳入标准。还评估了偏倚风险。共纳入38项研究。18项研究仅使用骨水平种植体，10项采用软组织水平设计，10项观察了两种类型种植体的骨水平变化。基于偏倚评估，在大多数研究中评估偏倚风险并不适用。种植体周围骨丢失的方法、随访和多因素特征存在巨大差异，这使得直接比较变得不可能。因此，需要进一步进行结构良好的研究。
