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15 Prevalence of malocclusion and orthodontic treatment needs among school

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211 J INDIAN SOC PEDOD PREVENT DENT | Oct - Dec 2009 | Issue 4 | Vol 27 | O RIGINAL A RTICLE Prevalence of malocclusion and orthodontic treatment needs among middle and high school children of Davangere city, India by using Dental Aesthetic Index Shivakumar KM, Chandu GN 1 , Subba Reddy VV 2 , Sha ° ulla MD 3 Assistant Professor, Department of Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Medical Sciences University, Sawangi (Meghe), Wardha - 442 004, Maharashtra; 1 Professor and Head, Department of Public Health Dentistry, 2 Principal, Professor and Head, Department of Pedodontics and Preventive Dentistry, College of Dental Sciences, Davangere - 577 004, Karnataka; 3 Professor and Head, Department of Public Health Dentistry, Vishnu Dental College and Hospital, Bhimavaram ° 534 202, Andhra Pradesh, India. Correspondence: Dr. KM Shivakumar, Assistant Professor, Department of Public Health Dentistry, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Medical Sciences University, Sawangi (Meghe), Wardha ° 442 004, Maharashtra, India. E-mail: [email protected] Abstract Background: Malocclusion has large impact on individual and society in term of discomfort, Quality of Life [QoL] Aims and Objectives: To assess prevalence of malocclusion and orthodontic treatment needs among middle and high school children of Davangere city, India by using Dental Aesthetic Index [DAI]. Materials and Methods: A Descriptive cross sectional study was conducted among 1000, in the age group 12 to 15 year old school children studying in middle and high schools of Davangere city, India. 10 schools were selected by simple random sampling procedure and 100 study subjects were selected proportionately for males and females by using systematic random sampling procedures in each school. Data recorded using proforma consisted DAI components. The collected data was subjected to statistical analysis. Statistical Analysis: The Chi-square test [x 2 ] was used for comparison of severity of malocclusion. Analysis of Variance [ANOVA] test was used for comparison of mean DAI scores between the age groups and in DAI scores. ‘Z’ test was used for comparing the mean DAI scores between sex group. Results: Of the 1000 children examined, 518[ 51.8%] were males and 482[ 48.2%] were females. 80.1% school children had 25 DAI scores with no or minor malocclusion requiring no or little treatment, 15.7% had 26-30 DAI scores with definite malocclusion requiring elective treatment, 3.7% had 31-35 DAI scores with severe malocclusion requiring highly desirable treatment and 0.5% had 36 DAI scores with handicapping malocclusion requiring mandatory treatment. Conclusions: 80.1% school children had no or minor malocclusion which required no or slight treatment, 19.9% had definite/handicapping malocclusion requiring definite/mandatory orthodontic treatment.

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