{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,4]],"date-time":"2026-11-04T22:45:15Z","timestamp":1793832315502,"version":"4.6.1"},"reference-count":28,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,4,18]],"date-time":"2023-04-18T00:00:00Z","timestamp":1681776000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Dent. Med"],"abstract":"<jats:sec><jats:title>Objectives<\/jats:title><jats:p>The aim of this study was to assess the survival rate and identify possible risk factors for failure of dental implants placed by postgraduate students in Implantology at a Brazilian Dental School.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials &amp;amp; methods<\/jats:title><jats:p>A retrospective observational study was conducted to evaluate 1,164 dental implants placed by postgraduate students in Implantology at S\u00e3o Leopoldo Mandic Dental School (Brazil) during a 3-year time period (2018\u20132020). Data collected from the patients' medical charts included the following: implant loss, gender, diabetes, smoking, continuous use of medication, type of implant connection system, implant position (maxilla or mandible), previous bone grafting and type of prosthetic provisioning (temporary prosthesis, immediate prosthesis or permanent prosthesis). The association between all the independent variables and implant loss was run using <jats:italic>\u03c7<\/jats:italic><jats:sup>2<\/jats:sup> and <jats:italic>G<\/jats:italic> tests (<jats:italic>\u03b1<\/jats:italic>\u2009=\u20095%). The implant survival rate was estimated using Kaplan-Meier curve.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Gender, diabetes, smoking, continuous use of medication, type of implant connection system, implant position, previous bone grafting and type of prosthetic provisioning showed no statistically significant association with implant loss. Of the 1,164 implants installed, 29 (2.5%) failed. The overall survival rate of dental implants placed by postgraduate students up to 52 months was 90.5% (IC95%: 74.5%\u201396.7%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Implants placed by postgraduate students in Implantology at S\u00e3o Leopoldo Mandic Dental School showed a high survival rate, with gender, diabetes, smoking, continuous use of medication, type of implant connection system, implant position, previous bone grafting and type of prosthetic provisioning not accounting for the risk of implant failure.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fdmed.2023.1170253","type":"journal-article","created":{"date-parts":[[2023,4,18]],"date-time":"2023-04-18T05:26:46Z","timestamp":1681795606000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Survival rate of dental implants installed by postgraduate students attending an implantology program in Brazil: A 52-month retrospective analysis"],"prefix":"10.3389","volume":"4","author":[{"given":"Myungjin","family":"Kang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Henrique","family":"Smanio Neto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9 Antonio","family":"Pelegrine","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cecilia Pedroso","family":"Turssi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliana Trindade","family":"Clemente-Napimoga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcelo Henrique","family":"Napimoga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,4,18]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"839","DOI":"10.1111\/j.1708-8208.2012.00456.x","article-title":"10-Year Survival and success rates of 511 titanium implants with a sandblasted and acid-etched surface: a retrospective study in 303 partially edentulous patients","volume":"14","author":"Buser","year":"2012","journal-title":"Clin Implant Dent Relat Res"},{"key":"B2","doi-asserted-by":"publisher","first-page":"2","DOI":"10.1111\/j.1600-0501.2012.02547.x","article-title":"Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow-up of 5 years","volume":"23","author":"Jung","year":"2012","journal-title":"Clin Oral Implants Res"},{"key":"B3","doi-asserted-by":"publisher","first-page":"945","DOI":"10.1097\/ID.0000000000000668","article-title":"Quality of life of implant-supported overdenture and conventional complete denture in restoring the edentulous mandible: a systematic review","volume":"26","author":"Zhang","year":"2017","journal-title":"Implant Dent"},{"key":"B4","doi-asserted-by":"publisher","first-page":"1121","DOI":"10.1111\/clr.12499","article-title":"10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients","volume":"26","author":"van Velzen","year":"2015","journal-title":"Clin Oral Implants Res"},{"key":"B5","doi-asserted-by":"publisher","first-page":"377","DOI":"10.1016\/j.ijom.2014.10.023","article-title":"Evaluation of survival and success rates of dental implants reported in longitudinal studies with a follow-up period of at least 10 years: a systematic review","volume":"44","author":"Moraschini","year":"2015","journal-title":"Int J Oral Maxillofac Surg"},{"key":"B6","doi-asserted-by":"publisher","first-page":"243","DOI":"10.1111\/clr.13338","article-title":"Is there an effect of crown-to-implant ratio on implant treatment outcomes? 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