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Transversal dental arch dimensions in 9-year-old children born in the 1960s and the 1980s
Jönköping University, School of Health Science, HHJ. Oral health.
2001 (English)In: American Journal of Orthodontics and Dentofacial Orthopedics, ISSN 0889-5406, E-ISSN 1097-6752, Vol. 120, no 6, p. 576-84Article in journal (Refereed) Published
Abstract [en]

The transversal arch dimension has been studied in 2 different cohorts of 9-year-old children, a group of 119 (56 girls and 63 boys) from Norway and a group of 133 (72 girls and 61 boys) from Sweden. Half of the children in each group were born in the 1960s and half in the 1980s. The maxillary and mandibular transversal dimensions did not differ between the 1960s groups and the 1980s groups when the maxilla and the mandible were studied separately. When the intermaxillary relationship was assessed, a significant reduction in the intermaxillary difference was found in the boys born in the 1980s compared with the boys born in the 1960s. This was confirmed with different measurement points. In the girls, the mesial drift of the first permanent molars, because of a greater prevalence of caries in the 1960s groups, masked this effect. When the mesial drift of the first permanent molars in the girls born in the 1960s was considered, the transversal intermaxillary difference showed the same secular pattern as in the boys. When the mesial drift of the first permanent molars was considered, the intermaxillary difference in the 1960s groups resembled that found in an American sample of northwest European ancestry born in the 1940s to a greater extent compared with the children born in the 1980s.

Place, publisher, year, edition, pages
2001. Vol. 120, no 6, p. 576-84
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Medical and Health Sciences
Identifiers
URN: urn:nbn:se:hj:diva-23068DOI: 10.1067/mod.2001.118783PubMedID: 11742301OAI: oai:DiVA.org:hj-23068DiVA, id: diva2:687186
Available from: 2014-01-13 Created: 2014-01-13 Last updated: 2017-12-06Bibliographically approved

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