Longitudinal study on the effect of early interceptive treatment in 4-year-old children with unilateral cross-bite.
To evaluate the results of early interceptive grinding and also the possibility of self-correction of unilateral cross-bite, 76 4-yr-old children with this malocclusion were divided into one treated and one untreated group. In the treatment group 50% of the children exhibited a normal transverse occlusion evaluated in the mixed dentition, at the age of 9. In the untreated group only 17% showed a spontaneous correction of the cross-bite. Among the studied dental variables the "max./mand. arch width difference" especially in the canine region was found to be a valuable predictor indicating whether cross-bite can be successfully treated in preschoolchildren by selective grinding. The results of this study support early treatment of unilateral cross-bite and gives the criteria whereby successful treatment by selective grinding may be expected.
Lindner
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Department of Orthodontics and Pedodontics, Faculty of Odontology, Karolinska Institute, Stockholm, Sweden.
D002648:Child; D002675:Child, Preschool; D003724:Dental Arch / Q000473:pathology; D003767:Dental Occlusion, Balanced; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008310:Malocclusion / Q000473:pathology / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D008437:Maxilla / Q000473:pathology; D009972:Orthodontics, Interceptive / Q000379:methods; D012075:Remission, Spontaneous