Abstract
Introduction: this study was carried to understand Prevalence of malocclusion among the school children of Kathmandu, Sorakhutte residing near school during mixed dentition period. A sample of 600 children ; 365 male, 235 female in age group of 6-13yrs was selected randomly from different school of Kathmandu city. The aim of our study is to find out prevalence of malocclusion among the mixed detention children of Kathmandu.
 Materials & Method: Data was collected using direct observation of the subjects, Descriptive cross-sectional study method was used in this research. Occlusal assessment were done according to angle’s classification and dewey’s modification type of class I, class III malocclusion.
 Result: Subjects with normal occlusion was found to be 59.3% and with malocclusion was found to 40.7%. Among them class I malocclusion was majority of (57%) of study population, crowded incisors and significant difference was observed between male and female in the study.
 Conclusion: This study helps to access the prevalence malocclusion and need of orthodontic treatment for the mixed dentition period children.
Highlights
Malocclusion is one of oral health problems that affects individual socially, and psychologically
According to Edward Angle “A malocclusion may be defined as any deviation from normal occlusion of teeth while normal occlusion is the normal relation of occlusion inclined planes of the teeth when the jaws are closed”
In most of the developed countries where faculty of orthodontics and pedriatic dentistry are well established have provided information about prevalence of malocclusion and its treatment need to community to great extent
Summary
Malocclusion is one of oral health problems that affects individual socially, and psychologically. There is very less information about the malocclusion in the community. In most of the developed countries where faculty of orthodontics and pedriatic dentistry are well established have provided information about prevalence of malocclusion and its treatment need to community to great extent. Country like Nepal which is still in the developing state is lacking behind in creating awareness about the prevalence of malocclusion and its treatment need for developing children is necessary. The malocclusion if not figured out in the initial stage in later stages it will be complicated. If the malocclusion problem can be detected early, it will be easier for orthodontics to provide preventive procedure to child that will help in minimizing potential irregularity of dentofacial abnormalities
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