{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,31]],"date-time":"2026-08-31T11:05:54Z","timestamp":1788174354799,"version":"build-2803163510"},"reference-count":36,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2024,4,18]],"date-time":"2024-04-18T00:00:00Z","timestamp":1713398400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52105265"],"award-info":[{"award-number":["52105265"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2023YFB4605401"],"award-info":[{"award-number":["2023YFB4605401"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Esthet Restor Dent"],"published-print":{"date-parts":[[2024,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>This study aimed to present three indicators that represent the proximal contact area gap change under intercuspal occlusion and to see if and how these indicators influence food impaction with tight proximal contact.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Ninety volunteers were recruited for bite force measurement and intraoral scanning. Three\u2010dimensional surface data and buccal bite data were obtained for 60 impacted and 60 non\u2010impacted teeth. The scanning data were imported into the Geomagic Studio 2013 to measure three indicators, which included the gap change maximum (\u0394<jats:italic>d<\/jats:italic><jats:sub>m<\/jats:sub>, \u03bcm), the buccolingual position of \u0394<jats:italic>d<\/jats:italic><jats:sub>m<\/jats:sub> (P), and the gap expanded buccolingual range (S, mm). The difference between two groups of three indicators and their relationship with food impaction with tight proximal contact were analyzed by the <jats:italic>t<\/jats:italic> test, the Pearson chi\u2010squared test, the nonparametric Mann\u2013Whitney <jats:italic>U<\/jats:italic> test, and the binary logistic regression analysis (<jats:italic>a<\/jats:italic>\u2009=\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>All indicators (\u0394<jats:italic>d<\/jats:italic><jats:sub>m<\/jats:sub>, P, and S) were statistically different (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>p<\/jats:italic>\u2009=\u20090.002, and <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001) in the impacted and non\u2010impacted groups. Food impaction with tight proximal contact was affected by \u0394<jats:italic>d<\/jats:italic><jats:sub>m<\/jats:sub> and S (<jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>p<\/jats:italic>\u2009=\u20090.039), but not by P (<jats:italic>p<\/jats:italic>\u2009=\u20090.409).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The excessive increase of the gap change maximum and the gap expanded buccolingual range under bite force promoted the occurrence of food impaction with tight proximal contact.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical Significance<\/jats:title><jats:p>The use of intraoral scanning to measure the characteristics of the proximal contact area gap change under bite force may help to deepen our understanding of the pathogenesis of food impaction with tight proximal contact. Importantly it can provide a reference basis for individualizing and quantifying occlusal adjustment treatment.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jerd.13240","type":"journal-article","created":{"date-parts":[[2024,4,18]],"date-time":"2024-04-18T07:20:35Z","timestamp":1713424835000},"page":"1258-1266","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Quantitative evaluation of the proximal contact area gap change characterization under intercuspal occlusion by intraoral <scp>3D<\/scp> scanning: Food impaction with tight proximal contact"],"prefix":"10.1111","volume":"36","author":[{"given":"Hongyan","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Prosthodontics Shanxi Medical University School and Hospital of Stomatology  Taiyuan People's Republic of 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Biomaterials and Digital Medical Devices, NHC Key Laboratory of Digital Stomatology, Beijing Key Laboratory of Digital Stomatology, Key Laboratory of Digital Stomatology Chinese Academy of Medical Sciences  Beijing People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3424-5028","authenticated-orcid":false,"given":"Yuchun","family":"Sun","sequence":"additional","affiliation":[{"name":"Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, NHC Key Laboratory of Digital Stomatology, Beijing Key Laboratory of Digital Stomatology, Key Laboratory of Digital Stomatology Chinese Academy of Medical Sciences  Beijing People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8087-4415","authenticated-orcid":false,"given":"Feng","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics Shanxi Medical University School and Hospital of Stomatology  Taiyuan People's Republic of China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,4,18]]},"reference":[{"key":"e_1_2_9_2_1","first-page":"1113","article-title":"Classification of food impaction\u2010revisited and its management","volume":"5","author":"Khairnar M","year":"2013","journal-title":"Indian J Dent Adv"},{"issue":"4","key":"e_1_2_9_3_1","first-page":"278","article-title":"Etiology and clinical technology of the food impaction with tight proximal contacts","volume":"54","author":"Li ZL","year":"2019","journal-title":"Chin J Stomatol"},{"issue":"1","key":"e_1_2_9_4_1","first-page":"229","article-title":"Food 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