{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,20]],"date-time":"2026-06-20T20:51:51Z","timestamp":1781988711960,"version":"3.54.5"},"reference-count":14,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2026,2,27]],"date-time":"2026-02-27T00:00:00Z","timestamp":1772150400000},"content-version":"vor","delay-in-days":57,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Case Reports in Dentistry"],"published-print":{"date-parts":[[2026,1]]},"abstract":"<jats:p>This case study examines the dental effects of a persistent thumb\u2010sucking habit by comparing monozygotic twins\u2014one with the habit and one without. With genetic and environmental variables largely controlled, this model isolates the impact of nonnutritive sucking on occlusal development. Clinical and diagnostic assessments revealed that the twin with the habit exhibited an anterior open bite, increased overjet, narrower maxillary arch width, deeper palatal vault, and altered incisor inclinations. A unilateral right\u2010sided functional shift crossbite was also observed. Molar relationships were similar in both twins, whereas canine relationships differed. These findings align with existing literature on the association between digit habits and malocclusion. This genetically controlled comparison strengthens the evidence that persistent thumb\u2010sucking can influence the developing dentition and contributes to a deeper understanding of behavioral influences on occlusal and arch morphology in children in the primary dentition.<\/jats:p>","DOI":"10.1155\/crid\/8643566","type":"journal-article","created":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T12:27:21Z","timestamp":1772972841000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dental Effects of Discordant Thumb\u2010Sucking in Monozygotic Twins: A Case Report"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-0911-7339","authenticated-orcid":false,"given":"Kevin","family":"Brunstein","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8603-6001","authenticated-orcid":false,"given":"Eric","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-6576-5687","authenticated-orcid":false,"given":"Jillian","family":"Shute","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,2,27]]},"reference":[{"key":"e_1_2_13_1_2","doi-asserted-by":"publisher","DOI":"10.1186\/s12903-018-0610-7"},{"key":"e_1_2_13_2_2","first-page":"133","article-title":"Oral Habits--Part 1: The Dental Effects and Management of Nutritive and Non-Nutritive Sucking","volume":"81","author":"Silva M.","year":"2014","journal-title":"Journal of Dentistry for Children"},{"key":"e_1_2_13_3_2","first-page":"187","article-title":"Non-Nutritive Sucking Behaviors in Preschool Children: A Longitudinal Study","volume":"22","author":"\u200cWarren J. 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