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ORIGINAL ARTICLE
Year : 2013  |  Volume : 2  |  Issue : 1  |  Page : 1-6

The prevalence of malocclusion in urban Libyan schoolchildren


1 Department of Orthodontic, Dental Faculty, Benghazi University, Benghazi, Libya
2 Smile N Braces, The Multispecialty Dental Clinic, Porvorim, Bardez, Goa, India

Correspondence Address:
Iman Bugaighis
Department of Orthodontic, Dental Faculty, Benghazi University, Benghazi
Libya
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-0203.110325

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Objective: This study aimed to explore the prevalence of malocclusion and its distribution among 12-17 year old Urban Libyan schoolchildren. Materials and Methods: A total of 900 subjects were examined, of which 343 fulfilled the inclusion criteria; 169 males and 174 females. Molar relationship, overjet (OJ), overbite (OB), midline deviation, crossbite, and crowding/spacing were recorded. Sexual dimorphism was explored using descriptive statistics and the Chi-square tests. Results: The prevalence of malocclusion was 95.6%. Class I, Class II division 1, Class II division 2 and Class III malocclusions comprised 66.5%, 21.9%, 3.5%, and 3.7% respectively of the total sample. The OJ percentage of 51% (zero-3.5 mm), 48.4% (>3.5 mm), 0.6% (≤−3.5 mm to >zero) was recorded, with no significant sex differences ( P=0.225). A normal overbite, increased and open bites were observed in 39.9%, 55.1%, and 2.3% of the group respectively with no sexual dimorphism ( P=0.970). Crossbite was present in 13.1% of the group, with no significant sex difference ( P=0.469). Crowding in the maxillary and mandibular arches were observed in13.9%, and 12.2% respectively. Spacing occurred in 9.4% and 7.9% of the examined maxillary and mandibular arches respectively, with no significant sex difference regarding the presence of spacing/crowding in the maxillary arch ( P>0.05). Males, however, had significantly more spacing and less crowding in the mandibular arch ( P<0.05). Conclusions: The prevalence of malocclusion in Libyan schoolchildren is among the highest reported in the literature. Crowding is among the least reported manifestations of malocclusion.


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