Prevalence of Malocclusion among 10-12-year-old Schoolchildren in Kozhikode District, Kerala: An Epidemiological Study.
BACKGROUND
A malocclusion is an irregularity of the teeth or a malrelationship of the dental arches beyond the range of what is accepted as normal.


OBJECTIVE
To determine the prevalence of malocclusion in children aged 10-12 years in Kozhikode district of Kerala, South India.


METHODS
A descriptive cross-sectional study was conducted among schoolchildren aged 10-12 years in six schools in Kozhikode district of Kerala, South India. A total of 2,366 children satisfied the inclusion criteria. Occlusal characteristics like crossbite, open bite, deep bite, protrusion of teeth, midline deviations, midline diastema and tooth rotation were recorded. The data were tabulated and analyzed using Chi-square test.


RESULTS
The results revealed that the overall prevalence of malocclusion was 83.3%. Of this, 69.8% of the children had Angle's class I malocclusion, 9.3% had class II malocclusion (division 1 = 8.85%, division 2 = 0.5%) and 4.1% had class III malocclusion; 23.2% showed an increased overjet (>3 mm), 0.4% reverse overjet, 35.6% increased overbite (>3 mm), 0.29% open bite, 7.2% crossbite with 4.6% crossbite of complete anterior teeth, 63.3% deviation of midline, 0.76% midline diastema and 3.25% rotated tooth. No significant differences in gender distributions of malocclusions were noted except for increased overjet and overbite.


CONCLUSIONS
There is high prevalence of malocclusion among schoolchildren in Kozhikode district of Kerala. Early interception and early correction of these malocclusions will eliminate the potential irregularities and malpositions in the developing dentofacial complex. How to cite this article: Narayanan RK, Jeseem MT, Kumar TVA. Prevalence of Malocclusion among 10-12-year-old Schoolchildren in Kozhikode District, Kerala: An Epidemiological Study. Int J Clin Pediatr Dent 2016;9(1):50-55.
Professor and Head, Department of Pedodontics and Preventive Dentistry Government Dental College, Kozhikode, Kerala, India.
Retna Kumari
RK
Narayanan
Postgraduate Student, Department of Pedodontics and Preventive Dentistry Government Dental College, Kozhikode, Kerala, India.
M T
MT
Jeseem
Associate Professor, Department of Pedodontics and Preventive Dentistry Government Dental College, Kozhikode, Kerala, India.
Tv Anupam
TA
Kumar
Crossbite; Malocclusion; Prevalence.