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The prevalence of dental caries, and the frequency of tooth brushing, the children\u2019s oral habits, molar relationships, and occlusal traits were recorded.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The percentage of children who brushed their teeth more than twice daily was statistically significantly higher in multiple births than in singletons. Higher correlation coefficients were found in dental caries index, except for decayed, filled (df) (2\u20135 age group) and filled (f) (6\u201311 age group), in the monozygotic twin pairs compared to those in the dizygotic twin pairs. In children between the ages of 6 and 11 years, mouth breathing, bruxism, lip biting, and pencil biting were higher in singletons than in children of multiple births. There were statistically significant differences between children of multiple births and singletons, with increased overjet in the 2\u20135 year age group being observed.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>When analyzing these parameters, environmental factors must also be investigated. Due to the low incidence of twin births, longitudinal follow-up studies with more twin pairs are necessary to determine whether these results are generalizable.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12903-023-03426-9","type":"journal-article","created":{"date-parts":[[2023,10,9]],"date-time":"2023-10-09T10:14:02Z","timestamp":1696846442000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["The contribution of genetics to dental caries, oral habits and occlusal traits in Turkish twins: A comparative study"],"prefix":"10.1186","volume":"23","author":[{"given":"Esra","family":"Oz","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zuhal","family":"K\u0131rz\u0131oglu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2023,10,9]]},"reference":[{"key":"3426_CR1","doi-asserted-by":"crossref","unstructured":"Hughes TE, Townsend GC, Pinkerton SK, Bockmann MR, Seow WK, Brook AH, et al. 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