Pattern of Malocclusion in Iraqi Patients Seeking Orthodontic Treatment


Background: Malocclusion problems and orthodontic treatment demand is increasingover recent years. In most of the patients, malocclusion carry significantpsychological stigma to them and may cause many serious dental esthetic andfunctional problems. Thus, it is mandatory to assess the epidemiological figureson the pattern of malocclusion to plan and determine the resources needed forplanning the appropriate orthodontic treatment. This study aimed to assess thepattern and distribution of malocclusion based on Angle’s classification systemamong Iraqi orthodontic patients.Materials and methods: This study included 474 patients (230 males, 244 females)between the age 13 to 20 years attending the undergraduate Department ofOrthodontics at Al-Rafidain University College. Occlusal variables examinedwere molar relationship, crowding, spacing, buccally displaced canines, deep bite,open bite, anterior crossbite, and posterior crossbite. A descriptive statistics wasused to analyze the data and the relationship was studied utilizing “Chi square test(p<0.05) and Fisher’s exact probability test”.Results: The frequency of “Angle class I, II and III malocclusion” of first molars was89.66%, 8.22%, and 2.1% respectively. However, no significant differences werefound between the sexes in the prevalence of different types of malocclusionexcept for Class III malocclusion. The percentages of other occlusal traits werecrowding 72.23%, spacing 9.88%, deep bite 0.6%, open bite 0.6%, buccallydisplaced canines 6.82%, anterior crossbite 4%, and posterior crossbite wasreported in 3.06%.Conclusion: The Angle’s Class I malocclusion with crowding was the most prevalent,followed by Class II malocclusion while the least predominant was Class IIImalocclusion.