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Prevalence of myopia in a population with malocclusions

Type:  Articles

Pubblication date:  10/2012

Authors:  A. Monaco, F. Sgolastra, R. Cattaneo, A. Petrucci, M.C. Marci, P.D. D’Andrea*, R. Gatto

Language:  English

Institution:  School of Dentistry, University of L’Aquila, Italy Department of Health Sciences *Ophthalmologist, Private Practitioner in L’Aquila, Italy

Publication:  supplement to European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Myopia; Cross-sectional study; Epidemiology; Malocclusion

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Title:  Prevalence of myopia in a population with malocclusions

Abstract:  prevalence of myopia among a paediatric population with malocclusions. Materials and methods A total of 322 consecutive patients of the department of Orthodontics and Gnathology, Dental Clinic, University of L’Aquila, were enlisted for the study and 292 were selected according to the exclusion criteria. Pretreatment diagnostic data, which included radiographic cephalometric and dental cast evaluation, were recorded and presence of myopia was assessed through an ophthalmological examination. Differences in the prevalence of myopia by sex and malocclusion were analysed by using Pearson’s chi-square and Fisher’s exact tests. Results According to the sagittal malocclusion, patients were classified as Class I (N=162), Class II division 1 (N=75), Class II division 2 (N=38), or Class III (N=12). No gender influence was found for myopia or malocclusion. No differences were recorded when analysing the influence of sex on the prevalence of myopia in classes of malocclusion. A statistical significant higher prevalence was found for subjects showing myopia in Class II division 1 malocclusion, while no other significant differences were found for prevalence in the other classes of malocclusions. Discussion Few study investigated a possible relationship between the ocular and stomatognathic system, and no data are available in the scientific literature. A higher prevalence of myopia was found in patients with Class II division 1: as expected no other significant association was found. Conclusion The findings of the present study suggest a possible association between myopia and Class II, but further studies are needed to confirm and explain this observation.

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