Abstract
Introduction: Various forms of malocclusion is most common dentofacial abnormality found in human population. People seek tteatment for such abnormalities based on the severity. The objective of this research is to evaluate Pattern of Malocclusion in Patients Seeking Orthodontic Treatment at Medical Colleges and Teaching Hospitals of Chitwan, Nepal.
 Materials & Method: Two hundred thirty nine pre-operative study casts of orthodontic patients aged from 12-50 years selected from 550 patient’s records of departments of orthodontics of Chitwan Medical Colleges and Colleges of Medical Sciences, Bharatpur of Chitwan. Standard protocol of Angle’s classification of malocclusion was used to classify malocclusion and its attributes were recorded. Pearson’s Chi square test was performed to justify the result.
 Result: The prevalence of malocclusion were 61.92% , 33.47% and 4.60% for Angle’s class I, Angle’s class II and Angle’s class III malocclusion respectively. Among various attributes of malocclusion, deep bite had highest frequency with 67.36% followed by overjet 58.99%, crowding 53.13% and spacing 35.98%, Anterior cross bite 11.71% reverse overjet 4.6%, posterior cross bite 1.2% and scissor bite 0.041%. Pearson Chi square test showed no relation among these attributes and sex and age at p < .05.
 Conclusion: Angle’s class I malocclusion is most prevalent followed by Angle’s class II and Angle’s class III.
Highlights
Various forms of malocclusion is most common dentofacial abnormality found in human population
The demand for orthodontic treatment is increasing in different regions of different countries
This is the retrospective study done in study cast of patients who visited departments of Orthodontics and Dentofacial Orthopedics of Chitwan Medical College and College of Medical Sciences in Chitwan, Nepal from 2014 to 2018.Two hundred thirty nine acceptable study casts were selected from 550 case recordsof orthodontic patients.The subjects ranged from 12 to 50 years with the following criteria: (1) permanent dentition with fully erupted intact first molar, (2) patient willing for orthodontic treatment with all pretreatment records, (3) no history of previous orthodontic treatment,(4) absenceof craniofacialanomalies
Summary
Various forms of malocclusion is most common dentofacial abnormality found in human population. People seek tteatment for such abnormalities based on the severity. The objective of this research is to evaluate Pattern of Malocclusion in Patients Seeking Orthodontic Treatment at Medical Colleges and Teaching Hospitals of Chitwan, Nepal. People strive for healthy and beautiful smile. The demand for orthodontic treatment is increasing in different regions of different countries. This increase may be due to modernization and economic development. The need of data to understand the prevalence of the condition and people’s perception of the malocclusion is imperative and gives us the guidance to allocate the services to the needy. This study will help in understanding the need of resources
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