La revue médicale de l'HMRUO
Volume 9, Numéro 1, Pages 17-25
2022-05-15

Epidemiology Of Class Iii Malocclusion In School Children In Constantine



Authors : Tahraoui Chakib .

Abstract

The aim of our study is to determine the prevalence of class III malocclusion in 1500 children aged 5 to 15 years (729 boys and 771 girls) enrolled in public schools of the primary and middle cycle of the wilaya of Constantine, ALGERIA and a characterization of the occlusal features of this malocclusion. It took place from January to May 2010. Materials and Method: The partial descriptive type survey. The direct clinical observation (without radiographic examination) using as an index the classification of Angle during made it possible to identify the presence or not of class III malocclusion. The relationships of canines, incisors and molar as well as inter-arch relationships in the static and dynamic transverse direction were also studied. Bivariate analysis was used to supplement our descriptive survey to identify subgroups of the study population. Results: Of the 1,500 children examined, 90 presented with class III malocclusion, i.e. a prevalence of 6% including 2.4% of functional class III (36/1500). Bivariate analysis has shown that this malocclusion is visible in young children with temporary dentition with twice the risk for men. The occlusal examination revealed a molar class III, a canine class III, an inverted or zero incisal overjet and was complicated in 31% of the cases by a lateral cross bite.

Keywords

Class III malocclusion, Prevalence, School children, Occlusal characteristics,Wilaya of Constantine

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