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Prevalence of occlusal traits and orthodontic treatment need in 14 year-old adolescents in Northeast Italy
 

Type:  Articles

Pubblication date:  03/2016

Authors:  R. Ferro*, A. Besostri*, A. Olivieri**, E. Stellini***

Language:  English

Institution:  *Dental Unit, Regional Centre for the Study, the Prevention and the Therapy of Dental Diseases, Cittadella Hospital Health District n. 15, Veneto Region, Cittadella (Padua) Italy **Epidemiology Unit, Prevention Department Health District n. 15, Veneto Region, Camposampiero (Padua) Italy ***Dental School, University of Padua, Padua, Italy

Publication:  European Journal of Paediatic Dentistry

Publisher:  Ariesdue Srl

Keywords:  Adolescents; Malocclusion; IOTN; Occlusal traits.

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Email:  roberto.ferro@ulss15.pd.it


Title:  Prevalence of occlusal traits and orthodontic treatment need in 14 year-old adolescents in Northeast Italy

Abstract:  Aim Studies on prevalence of malocclusion support the planning and provision of public dental services. The aim of the study was to assess the prevalence of malocclusion and occlusal traits in adolescents aged 14 years from public secondary schools in the area of Health District n.15 - Veneto region, Italy. Materials and methods Study design: Cross-sectional survey. Methods: Out of a randomly selected sample of 1187 subjects, 444 adolescents (55% males, 45% females) were evaluated in the school settings according to the criteria adopted by Brunelle et al. [1996]. Alginate impressions were then taken for 380 students together with a wax bite. The occlusal traits of the cast were analysed and IOTN was established. Results The most common occlusal traits measured on casts were overjet >3 mm (48%), overbite >3 mm (39%), midline misalignment (32%), crowding (30%), 99% of the sample showed at least one occlusal trait. Class I molar relationship prevailed (75.5%) and the prevalence of molar asymmetries was 21.9%. The prevalence of anterior and posterior crossbite and open bite was significantly higher in females, while the mean values of overjet and overbite were higher in males. The distribution of IOTN in the study population showed that only 49.5% had no or little need of treatment, and more than one third (35.8%) were assigned a 4 or 5 score. Statistics: Descriptive statistics are expressed as a percentage ( confidence interval) or mean standard deviation, according to the nature of the variable. Conclusions These outcomes indicate a high prevalence of the aforementioned occlusal traits and also a high need for orthodontic treatment among adolescents in Northeast Italy

 
 
 
 
 
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