Lago, LauraSilva Domínguez, José Luís daFernández Formoso, NoeliaRilo Pousa, Benito2024-03-112024-03-112023Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology Volume 35, Issue 5, September 2023, Pages 375-3822212-5558http://hdl.handle.net/10347/33104Objective To systematically review the literature to compare soft tissue level implants vs. bone level implants, depending on mesiodistal edentulous space, aesthetic requirements, type of prosthetic restoration, connection-reconnection of the abutment, and denture space. Methods Medline (Pubmed) and Scopus were electronically and hand searched for any publications that evaluated STL and BL implants in relation to any advantages or disadvantages in clinical situations. Results Overall, 1098 articles were identified, of which 48 were selected for review. 7 of them were systematic reviews, 8 were randomized controlled trials (RCTs), and 33 were non-RCTs (5 case control studies, 4 cohort studies, and 24 other types of non-RCTs) Conclusions All current implant approaches offer good results in terms of marginal bone loss and survival rates. Due to the fact that in different clinical situations, one or another type of implant may offer additional advantages, the choice between soft tissue level or bone level implant must be based on the particular characteristics of each case.eng©2023 Asian AOMS, ASOMP, JSOP, JSOMS, JSOM, and JAMI. Published by Elsevier Ltd. All rights reserved. This is an open access article under the CC BY licenseAtribución 4.0 Internacionalhttp://creativecommons.org/licenses/by/4.0/Dental implantProsthodonticsSystematic reviewLevel implantjournal article10.1016/j.ajoms.2023.02.007open access