{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T16:15:18Z","timestamp":1760890518362,"version":"3.40.5"},"reference-count":57,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2023,7,10]],"date-time":"2023-07-10T00:00:00Z","timestamp":1688947200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clin Implant Dent Rel Res"],"published-print":{"date-parts":[[2023,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Periodontitis is the main indication for dental extraction and often leads to peri\u2010implantitis (PI). Alveolar ridge preservation (ARP) is an effective means of preserving ridge dimensions after extraction. However, whether PI prevalence is lower after ARP for extraction after periodontitis remains unclear. This study investigated PI after ARP in patients with periodontitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>This study explored the 138 dental implants of 113 patients. The reasons for extraction were categorized as periodontitis or nonperiodontitis. All implants were placed at sites treated using ARP. PI was diagnosed on the basis of radiographic bone loss of \u22653\u2009mm, as determined through comparison of standardized bitewing radiographs obtained immediately after insertion with those obtained after at least 6\u2009months. Chi\u2010square and two\u2010sample <jats:italic>t<\/jats:italic> testing and generalized estimating equations (GEE) logistic regression model were employed to identify risk factors for PI. Statistical significance was indicated by <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.05.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The overall PI prevalence was 24.6% (<jats:italic>n<\/jats:italic>\u2009=\u200934). The GEE univariate logistic regression demonstrated that implant sites and implant types were significantly associated with PI (premolar vs. molar: crude odds ratios [OR]\u2009=\u20095.27, 95% confidence intervals [CI]\u2009=\u20092.15\u201312.87, <jats:italic>p<\/jats:italic>\u2009=\u20090.0003; bone level vs. tissue level: crude OR\u2009=\u20095.08, 95% CI\u2009=\u20092.10\u201312.24; <jats:italic>p<\/jats:italic>\u2009=\u20090.003, respectively). After adjustment for confounding factors, the risks of PI were significantly associated with implant sites (premolar vs. molar: adjusted OR [AOR]\u2009=\u20094.62, 95% CI\u2009=\u20091.74\u201312.24; <jats:italic>p<\/jats:italic>\u2009=\u20090.002) and implant types (bone level vs. tissue level: AOR\u2009=\u20096.46, 95% CI\u2009=\u20091.67\u201325.02; <jats:italic>p<\/jats:italic>\u2009=\u20090.007). The reason for dental extraction\u2014that is, periodontitis or nonperiodontitis\u2014was not significantly associated with PI.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>ARP reduces the incidence of periodontitis\u2010related PI at extraction sites. To address the limitations of our study, consistent and prospective randomized controlled trials are warranted.<\/jats:p><\/jats:sec>","DOI":"10.1111\/cid.13243","type":"journal-article","created":{"date-parts":[[2023,7,10]],"date-time":"2023-07-10T07:29:56Z","timestamp":1688974196000},"page":"1000-1007","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Prevalence of peri\u2010implantitis after alveolar ridge preservation at periodontitis and nonperiodontitis extraction sites: A retrospective cohort study"],"prefix":"10.1111","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3265-0361","authenticated-orcid":false,"given":"Yu\u2010Hsiang","family":"Chou","sequence":"first","affiliation":[{"name":"School of Dentistry, College of Dental Medicine Kaohsiung Medical University  Kaohsiung Taiwan"},{"name":"Division of Periodontics, Department of Dentistry Kaohsiung Medical University Hospital  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yan\u2010Jun","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Dentistry Kaohsiung Medical University Hospital  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng\u2010Pin","family":"Pan","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Dental Medicine Kaohsiung Medical University  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wen\u2010Hsi","family":"Yen","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Dental Medicine Kaohsiung Medical University  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pei\u2010Feng","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Biomedical Science and Environmental Biology Kaohsiung Medical University  Kaohsiung Taiwan"},{"name":"Department of Medical Research Kaohsiung Medical University Hospital  Kaohsiung Taiwan"},{"name":"Center for Cancer Research Kaohsiung Medical University  Kaohsiung Taiwan"},{"name":"Institute of Biomedical Sciences National Sun Yat\u2010sen University  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I\u2010Jung","family":"Feng","sequence":"additional","affiliation":[{"name":"Institute of Precision Medicine National Sun Yat\u2010sen University  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ying\u2010Chu","family":"Lin","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Dental Medicine Kaohsiung Medical University  Kaohsiung Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kai\u2010Fang","family":"Hu","sequence":"additional","affiliation":[{"name":"Division of Periodontics, Department of Dentistry Kaohsiung Medical University Hospital  Kaohsiung Taiwan"},{"name":"Institute of Clinical Medicine National Yang Ming Chiao Tung University  Taipei Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2023,7,10]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/JPER.17-0719"},{"issue":"20","key":"e_1_2_11_3_1","first-page":"S9","article-title":"Periodontal health","volume":"45","author":"Lang NP","year":"2018","journal-title":"J Clin 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