Spontaneous correction and new development of posterior crossbite from the deciduous to the mixed dentition

Article Article scientifique Article Spontaneous correction and new development of posterior crossbite from the deciduous to the mixed dentition eng 2022-10-07 2022-10-07 author Khda Meryam 837709 author Kiliaridis Stavros 130544 author Antonarakis Gregory 0000-0001-6741-6922 133276 10.1093/ejo/cjac061 36203363 0141-5387 Aim: To determine (a) the prevalence of spontaneous correction of posterior crossbites from the deciduous to the mixed dentition and (b) the development of new posterior crossbite cases during the eruption of the first permanent molars, in orthodontically untreated children. Materials and methods: A cohort of pupils aged 4-12 years participated in annual dental screenings, from 2001 to 2019. Data were collected prospectively but examined retrospectively. Children were selected who had been initially screened in their deciduous dentition and on at least one consecutive year, presenting with a posterior crossbite in the deciduous or mixed dentition. Those with a posterior crossbite in the deciduous dentition were evaluated to see whether the crossbite persisted in the mixed dentition, and vice versa. Results: Of the 2571 children participating in the annual dental screenings, 1076 children were in the deciduous dentition at their first screening appointment, with 693 having attended at least two screening appointments. Of these 693 children, 70 had a posterior crossbite in the deciduous dentition (10.1%). The crossbite persisted in the mixed dentition in only 16 out of these 70 children. Twenty-six out of the 623 children who did not have a posterior crossbite in the deciduous dentition developed one in the mixed dentition. Limitations: The retrospective data collection, multiple examiners carrying out the dental screenings, and the absence of data on para-functions and oral habits were some of the limitations of the present study. Conclusions: In the present sample, 1 in 10 children have a posterior crossbite in the deciduous dentition, which is however autocorrected in about three-quarters of cases. On the other hand, 4% of children developed a new crossbite in the mixed dentition. It may thus be reasonable in cases with posterior crossbite in the deciduous dentition to wait for the first permanent molars to erupt before initiating treatment. Dewey 617.6 209 Division d'orthodontie 24Q1 false 188 Groupe Kiliaridis Stavros (médecine dentaire) 239 1448 Orthodontie 1065 European journal of orthodontics 4db4cac1-bcbc-486e-869e-6d8b465eb7f2 Article (Published version) Restricted EurJOrthod_.pdf 302560 application/pdf restrictedAccess Faculté de médecine / Section de médecine dentaire / Département de réhabilitation oro-faciale / Division d'orthodontie

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Spontaneous correction and new development of posterior crossbite from the deciduous to the mixed dentition	European journal of orthodontics			2022	178	2

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Khda, Meryam