Frequency of class-III malocclusion reported in dental OPD, Karachi Medical Dental College

Aims and Objective:- To determine the frequency of Class-III malocclusion reported Orthodontic department in Karachi Medical Dental College, Pakistan. Materials and Methods:-It was a cross sectional study of orthodontic patients. With convenience sampling a total of 384 patients (267 girls, 117 boys) referred to the Department of Orthodontics, Karachi Medical Dental College, were evaluated in this study. The mean age of the patients was 11.86 ±3.16 years. There malocclusion were classified from I, II (Div-1 and Div-2 with sub division right and left), and III, and recorded according to angle classifications. Results:- Class-III malocclusion was the least common malocclusion present in the major category of malocclusion and found 8.1% of the samples. Conclusions:- Class-III malocclusion requires very early treatment then class-III and Class I malocclusion and has totally reverse treatment philosophy. Having the lower frequency of Class-III malocclusion in the population makes doctor to focus more in later age group and puts less burden on health resources as more patients of Class-II and I can be treated using the same resources. The type of malocclusion also an important factor that affects a patient's motivation to seek treatment.