{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,2]],"date-time":"2025-12-02T06:18:15Z","timestamp":1764656295757,"version":"3.40.5"},"reference-count":39,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2024,3,15]],"date-time":"2024-03-15T00:00:00Z","timestamp":1710460800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100002322","name":"Coordena\u00e7\u00e3o de Aperfei\u00e7oamento de Pessoal de N\u00edvel Superior","doi-asserted-by":"publisher","award":["001"],"award-info":[{"award-number":["001"]}],"id":[{"id":"10.13039\/501100002322","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Prosthodontics"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The objective of this retrospective study was to evaluate the effect of the interproximal contour of single external hexagon implant restorations on the prevalence of peri\u2010implantitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>Records of 96 patients and 148 external hexagon (EH) implants with time in function ranging from 1 to 17 years were included in the study. The most recent clinical and radiographic data were collected from records and the prevalence of peri\u2010implantitis was defined according to the 2017 World Workshop on the Classification of Periodontal and Peri\u2010implant Diseases and Conditions. Marginal bone level (MBL), emergence angle (EA), emergence profile (EP), and crown\/implant platform horizontal ratio (CIHR) were obtained from periapical radiographs. Dichotomous variables at the patient\u2010 and implant level were compared with association tests. Mann\u2010Whitney <jats:italic>U<\/jats:italic>\u2010Test was performed to compare continuous quantitative values between the studied groups. Binomial logistic regression was conducted to identify risk indicators associated with the peri\u2010implantitis event at the patient\u2010 and implant level, with the significance level set at 5% for all tests.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Nineteen patients (19.2%) and 24 implants (16.2%) with a mean time in function of 5.0 \u00b1 4.7 years were classified as having peri\u2010implantitis. No statistically significant differences concerning gender, mean age, implant location in the jaw, or time in function were observed between patients with or without peri\u2010implantitis (<jats:italic>p<\/jats:italic> &gt; 0.05). Of 24 implants with peri\u2010implantitis 10 (41.7%) displayed EA \u2264 30\u00b0 (16.4%) while 14 (58.3%) presented EA &gt; 30\u00b0 with no statistical difference between the groups (<jats:italic>p<\/jats:italic> &gt; 0.05). No statistically significant associations were identified between EA, EP, or CIHR and the prevalence of peri\u2010implantitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The findings seem to indicate that the EA, EP, and CIHR of single restorations over external hexagon implants are not associated with the presence of peri\u2010implantitis. However, prospective studies with larger samples are required to better ascertain such an association in the long term.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jopr.13835","type":"journal-article","created":{"date-parts":[[2024,3,15]],"date-time":"2024-03-15T09:41:18Z","timestamp":1710495678000},"page":"655-662","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The effect of the interproximal contour of single external hexagon implant restorations on the prevalence of peri\u2010implantitis: A retrospective study"],"prefix":"10.1111","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4807-1241","authenticated-orcid":false,"given":"Luiz Carlos","family":"Volp Junior","sequence":"first","affiliation":[{"name":"Department of Dentistry State University of Maring\u00e1  Maring\u00e1 Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fl\u00e1via","family":"Matarazzo","sequence":"additional","affiliation":[{"name":"Department of Dentistry State University of Maring\u00e1  Maring\u00e1 Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5387-1753","authenticated-orcid":false,"given":"Debora Reis","family":"Dias","sequence":"additional","affiliation":[{"name":"Department of Dentistry State University of Maring\u00e1  Maring\u00e1 Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ricardo Puziol","family":"de Oliveira","sequence":"additional","affiliation":[{"name":"Ribeir\u00e3o Preto Medical School University of S\u00e3o Paulo Ribeir\u00e3o Preto Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S\u00e9rgio","family":"S\u00e1bio","sequence":"additional","affiliation":[{"name":"Department of Dentistry State University of Maring\u00e1  Maring\u00e1 Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maur\u00edcio G.","family":"Ara\u00fajo","sequence":"additional","affiliation":[{"name":"Department of Dentistry State University of Maring\u00e1  Maring\u00e1 Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,3,15]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jdent.2019.03.008"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13716"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12334"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1177\/0022034515608832"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jre.12582"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/JPER.17-0739"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/JPER.16-0350"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12738"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13381"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12954"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.12772"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.13183"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2021.11.030"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13629"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1097\/ID.0000000000000841"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13169"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-3913(90)90223-Y"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2012.01930.x"},{"issue":"1","key":"e_1_2_8_20_1","first-page":"138","article-title":"Effect of the platform\u2010switching technique on preservation of peri\u2010implant marginal bone: a systematic review","volume":"27","author":"Al\u2010Nsour MM","year":"2012","journal-title":"Int J Oral Maxillofac Implants"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12290"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12829"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13251"},{"issue":"4","key":"e_1_2_8_24_1","first-page":"1","article-title":"Influence of restorative design on the progression of peri\u2010implant bone loss: a retrospective study","volume":"92","author":"Majzoub J","year":"2020","journal-title":"J Periodontol"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2013.281053"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijsu.2014.07.013"},{"issue":"1","key":"e_1_2_8_27_1","first-page":"121","article-title":"Misfit of implant prostheses and its impact on clinical outcomes. 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