Bone Loss-Related Factors in Tissue and Bone Level Dental Implants: A Systematic Review of Clinical Trials Publisher



Mortazavi H¹ ; Khodadoustan A² ; Kheiri A³ ; Kheiri L⁴
Source: Journal of the Korean Association of Oral and Maxillofacial Surgeons Published:2021

Abstract

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. Copyright © 2021 The Korean Association of Oral and Maxillofacial Surgeons. All rights reserved.