{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T19:26:39Z","timestamp":1783625199629,"version":"3.55.0"},"reference-count":45,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2022,12,20]],"date-time":"2022-12-20T00:00:00Z","timestamp":1671494400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["aap.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>The aim of this study was to investigate the inter\u2010 and intra\u2010examiner agreement among international experts on the diagnosis of gingival recession defects using the 2018 Classification of Gingival Recession Defects and Gingival Phenotype as proposed in the 2017 World Workshop.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Standardized intraoral photographs from 28 gingival recession defects were evaluated twice by 16 expert periodontists. Recession type (RT), recession depth (RD), keratinized tissue width (KTW), gingival thickness (GT), detectability of the cemento\u2010enamel junction (CEJ), and presence of root steps (RS) were recorded and used for the analysis. Intra\u2010 and inter\u2010examiner agreements were calculated for individual variables and for the overall classification. Intraclass correlation coefficient with 95% CI was used for RD and KTW; Kappa with 95% CI was used for GT, CEJ, and RS; quadratic weighted Kappa with 95% CI was used for RT.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall intra\u2010 and inter\u2010examiner agreements were highest for KTW (0.95 and 0.90), lowest for GT (0.75 and 0.41), with the other variables in between (RD: 0.93 and 0.68, RS: 0.87 and 0.65, RT: 0.79 and 0.64, CEJ: 0.75 and 0.57). Overall intra\u2010 and inter\u2010examiner agreements for the matrix were 62% and 28%, respectively. Significant effects existed between one variable's measurement and other variables\u2019 agreements.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The 2018 Classification of Gingival Recession Defects and Gingival Phenotype is clinically reproducible within the examiners, and when the variables forming the matrix are analyzed individually. The between\u2010examiner agreement for the complete matrix showed lower reproducibility. The agreement was highest for KTW and RD, and least for GT.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jper.22-0501","type":"journal-article","created":{"date-parts":[[2022,12,4]],"date-time":"2022-12-04T23:24:15Z","timestamp":1670196255000},"page":"661-672","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Diagnostic reproducibility of the 2018 Classification of Gingival Recession Defects and Gingival Phenotype: A multicenter inter\u2010 and intra\u2010examiner agreement study"],"prefix":"10.1002","volume":"94","author":[{"given":"Giovanpaolo","family":"Pini Prato","sequence":"first","affiliation":[{"name":"Tuscany Academy of Dental Research (ATRO)  Florence Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2579-9464","authenticated-orcid":false,"given":"Riccardo","family":"Di Gianfilippo","sequence":"additional","affiliation":[{"name":"Department of Periodontics and Oral Medicine The University of Michigan\u2014School of Dentistry  Ann Arbor Michigan USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4181-3975","authenticated-orcid":false,"given":"Claudio M.","family":"Pannuti","sequence":"additional","affiliation":[{"name":"Discipline of Periodontics School of Dentistry University of S\u00e3o Paulo  S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edward P.","family":"Allen","sequence":"additional","affiliation":[{"name":"Private practice  Dallas Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sofia","family":"Aroca","sequence":"additional","affiliation":[{"name":"26K Center for Clinical Research  Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gustavo","family":"Avila\u2010Ortiz","sequence":"additional","affiliation":[{"name":"Private Practice Gonzalez Solano Atelier Dental  Madrid Spain"},{"name":"Department of Oral Medicine, Infection, and Immunity Harvard School of Dental Medicine  Boston Massachusetts USA"},{"name":"Department of Periodontics University of Iowa College of Dentistry  Iowa City Iowa USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philippe","family":"Bouchard","sequence":"additional","affiliation":[{"name":"Department of Periodontology and URP2496 Universit\u00e9 Paris Cit\u00e9  Paris France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3781-1715","authenticated-orcid":false,"given":"Francesco","family":"Cairo","sequence":"additional","affiliation":[{"name":"Head Research Unit in Periodontology and Periodontal Medicine The University of Florence  Florence Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tali","family":"Chackartchi","sequence":"additional","affiliation":[{"name":"Department of Periodontology Hadassah Medical Center Faculty of Dental Medicine Hebrew University of Jerusalem  Jerusalem Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierpaolo","family":"Cortellini","sequence":"additional","affiliation":[{"name":"Private practice  Florence Italy"},{"name":"European Research Group on Periodontology (ERGOPERIO)  Genova Italy"},{"name":"Deptartment of Oral Health Sciences, KU Leuven &amp; Dentistry (Periodontology) Un Hospitals Leuven  Leuven Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Debora","family":"Franceschi","sequence":"additional","affiliation":[{"name":"Department of Experimental and Clinical Medicine The University of Florence  Florence Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ajay","family":"Mahajan","sequence":"additional","affiliation":[{"name":"H.P.Governmental Dental College and Hospital  Shimla Himachal Pradesh India"},{"name":"King's College  London UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evelyn A.","family":"Mancini","sequence":"additional","affiliation":[{"name":"Private practice  Rosario Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael K.","family":"McGuire","sequence":"additional","affiliation":[{"name":"Perio Health Professionals The McGuire Institute  Houston Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tea","family":"Natsvlishvili","sequence":"additional","affiliation":[{"name":"Albius International Perio School  Tbilisi Georgia"},{"name":"Section of Periodontology Department of Oral and Maxillofacial Sciences The University of Rome, la Sapienza  Rome Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mauro P.","family":"Santamaria","sequence":"additional","affiliation":[{"name":"Division of Periodontics Institute of Science and Technology S\u00e3o Jos\u00e9 dos Campos S\u00e3o Paulo State University (UNESP)  S\u00e3o Paulo Brazil"},{"name":"College of Dentistry University of Kentucky  Lexington Kentucky USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E. 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