Prevalence and Severity of Malocclusion in Adolescent Kuwaitis

Abstract

Objectives: Our aim was to evaluate prevalence and severity of malocclusion in an adolescent Kuwaiti population. Subjects and Methods: Using a stratified cluster sampling method and excluding non-Kuwaitis, subjects with mesial migration and/or loss of first molars, and subjects with orthodontic treatment experience without availability of initial study models, we examined 1,299 Kuwaitis (674 boys and 625 girls) of mean age 13.2 ± 0.4 years in a regular well lit classroom. We scored molar and canine relationship, overjet, overbite, anterior and posterior cross bite as well as spacing and irregularity of the incisors using gloves, mirrors, rulers, and spatulas. Results: Fourteen, 15, and 71% met the criteria for almost ideal, mild, and moderate to severe malocclusion, respectively. Of the 86% with malocclusion, occurrence of class 1, half step class 2, full step class 2, half step class 3, and full step class 3 was 57.8, 24.9, 6.3, 8.8, and 2.2% for the first molars, and 36.1, 50.0, 6.2, 5.4, and 2.3% for the canines, respectively. Incisor malalignment was the most prevalent malocclusion trait (73.2%). Overjet ≧9.5 mm occurred in less than 1.5%, open bite in less than 3.5%, deep bite with gingival contact in less than 2.0%, complete posterior cross bite in less than 1.5%, and complete anterior crossbite in less than 2.0%. Median diastema was present in about 2/3 of the cases with maxillary anterior spacing as opposed to only about 1/3 of those with mandibular spacing. Conclusion: Our findings suggest that more than 70% of young adolescent Kuwaitis have moderate to severe malocclusion, with incisor malalignment as the most prevalent malocclusion trait.

The Prevalence of Major Types of Occlusal Anomalies among Saudi Middle School Students

“…[20][21][22] On the contrary, it was lower than that recorded among Lebanese. 17 These differences in results could be attributed to different ethnic and behavioral backgrounds of different populations.…”

Prevalence of angle class III malocclusion: A systematic review and meta-analysis

“…The articles from Singapore and Malaysia utilized a mix of Malaysian, Chinese, and Indian, which were analyzed separately in this study. Three articles reviewed populations from the Middle East: Egypt [19], Kuwait [20], and Turkey [21]. The remaining 3 articles analyzed Lithuanian [22], Italian [23], and Indian [24] populations.…”

“…Middle Eastern nations had a mean prevalence of 10.18% out of 4127 individuals [19][20][21]. The European studies had an average prevalence rate 4.88% out of 1290 individuals [22,23].…”

“…The Middle Eastern group showed a range of 9.48% and 11.38% [19,20]. The Indian group had a range of 0% [7] to 4.76% [8].…”

Prevalência de más oclusões em crianças de 9 a 12 anos de idade da cidade de Nova Friburgo (Rio de Janeiro)

“…Knowledge of a population's epidemiological situation is vital for planning and providing prevention and treatment services 20 . Several prevalence studies have been conducted on children in mixed or permanent dentition stages 3,4,[7][8][9][10]12,13,19,[25][26][27][28] , but few studies in the Brazilian population approach with any degree of clarity the changes occurring between these periods.…”