Distribution of Malocclusion and Occlusal Traits among Tibetan Adolescents residing in Nepal

Khamsum Wangdu,Kunsang Namgyal,Nischal Kunwar,Saujanya Karki,Umesh Parajuli

doi:10.3126/ojn.v4i2.13895

Abstract

Introduction: Malocclusion is the irregularity of teeth and is considered as oral health problem. Though etiology of malocclusion is multifactorial, it has considerable impact on the self esteem and social adjustment of an individual.Objective: To determine the prevalence of malocclusion and to assess the association between Angle classification of malocclusion and occlusal traits.Materials & Method: A cross sectional study was conducted among 138 Tibetan students of grade 8-12 were selected. Students with history of orthodontic treatment were excluded from the study. Data was recorded and analyzed using SPSS 17.0 and chi square test was used to evaluate the association between Angle classification of malocclusion and occlusal traits.Result: The prevalence of malocclusion was found to be Angle’s Class I (52.90%), Angle’s Class II (5.10%) and Angle’s Class III (9.40%). Occlusal traits such as overbite, increased overjet, openbite, crossbite, displacement and hypodontia was found to be 5.79%, 10.8%, 10.86%, 9.42%, 50,72% and 4.34% respectively.Conclusion: The prevalence of malocclusion among Tibetan adolescent was found to be higher. Hence, oral health awareness, preventive procedures and promotional programs need to be more emphasized.

Highlights

Malocclusion is the irregularity of teeth and is considered as oral health problem
According to World Health Organization (WHO), malocclusion occurs in majority of the population and it is considered as one of the major oral health problem.[7]
Karki S, Parajuli U, Kunwar N, Namgyal K, Wangdu K : Distribution of Malocclusion and Occlusal Traits among Tibetan Adolescents residing in Nepal carried out by four trained dentists under the supervision of an Orthodontist

Summary

Introduction

Malocclusion is the irregularity of teeth and is considered as oral health problem. Though etiology of malocclusion is multifactorial, it has considerable impact on the self esteem and social adjustment of an individual. The normal occlusion defined by Angle was that the mesiobuccal cusp of the upper first molar should occlude in the buccal groove of the lower first molar and teeth were arranged on a smoothly curving line of occlusion.[1] Dental occlusion may vary among individuals, age, race, gender and ethnic group. It may be as a result of variation in tooth size and shape, tooth position, sequence and timing of eruption, shape and size of dental arch and pattern of craniofacial growth.[2,3]. According to World Health Organization (WHO), malocclusion occurs in majority of the population and it is considered as one of the major oral health problem.[7]

Methods

Findings

Discussion

Conclusion