{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,7]],"date-time":"2026-02-07T08:23:25Z","timestamp":1770452605842,"version":"3.49.0"},"reference-count":8,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2020,5,5]],"date-time":"2020-05-05T00:00:00Z","timestamp":1588636800000},"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":["J Clinic Periodontology"],"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>Clinical photographs have been advocated in studies dealing with the quantity of root coverage. Changes in different angles of the camera when taking a photograph may lead to parallax errors resulting in inaccurate measurements. The aim of this study was to explore the distortion of the photographs according to the shooting angle.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A dental simulation model with a recession defect on tooth 21 was used. Photographs were taken with a digital camera at 5\u00b0 intervals between 0\u00b0 to 35\u00b0, by shifting the position of the model. Recession depth and root surface area were calculated with ImageJ and implemented in a mathematical model. The relationship between the experimental measurements and the outcomes of the mathematical model was statistically evaluated. The model was confirmed by clinical data.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>When the central axis of the lens of the camera focused on the experimental tooth is within a cone angle \u226436\u00b0, the maximum distortion of the recession area ranges from 0% to 14%, the maximum percentage occurring when the angle is coronal to the central axis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Photographs without an external device connected to the camera provide a valuable support for root coverage assessment when using ImageJ as a measuring tool.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jcpe.13294","type":"journal-article","created":{"date-parts":[[2020,4,18]],"date-time":"2020-04-18T12:00:25Z","timestamp":1587211225000},"page":"875-882","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Image distortion of intra\u2010oral photographs: The root coverage model"],"prefix":"10.1111","volume":"47","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4326-6741","authenticated-orcid":false,"given":"Stephane","family":"Kerner","sequence":"first","affiliation":[{"name":"Department of Periodontology U.F.R. of Odontology Universit\u00e9 de Paris Paris France"},{"name":"Department of Periodontology Service d\u2019Odontologie AP\u2010HP Rothschild Hospital Paris France"},{"name":"Department of Periodontology Loma Linda University School of Dentistry Loma Linda CA USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6200-1584","authenticated-orcid":false,"given":"Julia","family":"Garabetyan","sequence":"additional","affiliation":[{"name":"Department of Periodontology U.F.R. of Odontology Universit\u00e9 de Paris Paris France"},{"name":"Department of Periodontology Service d\u2019Odontologie AP\u2010HP Rothschild Hospital Paris France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4228-326X","authenticated-orcid":false,"given":"Sarah","family":"Le Roch","sequence":"additional","affiliation":[{"name":"Department of Periodontology U.F.R. of Odontology Universit\u00e9 de Paris Paris France"},{"name":"Department of Periodontology Service d\u2019Odontologie AP\u2010HP Rothschild Hospital Paris France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel","family":"Damman","sequence":"additional","affiliation":[{"name":"Private practice Paris France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9905-3967","authenticated-orcid":false,"given":"Philippe","family":"Bouchard","sequence":"additional","affiliation":[{"name":"Department of Periodontology U.F.R. of Odontology Universit\u00e9 de Paris Paris France"},{"name":"Department of Periodontology Service d\u2019Odontologie AP\u2010HP Rothschild Hospital Paris France"},{"name":"Laboratory Orofacial Pathologies Imaging and Biotherapies EA 2496 Universit\u00e9 de Paris Montrouge France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,5,5]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2009.080565"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12248"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2008.01204.x"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-051X.2007.01137.x"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13182"},{"issue":"11","key":"e_1_2_8_7_1","doi-asserted-by":"crossref","first-page":"1206","DOI":"10.1111\/j.1600-0501.2012.02531.x","article-title":"Behaviour of soft tissues healing around single bone\u2010level\u2010implants placed immediately after tooth extraction A 1 year prospective cohort 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