Total and Interregional Differences of the Need for Orthodontic Treatment in Turkey: Epidemiologic Surveillance Analysis

Abstract

Objective: The aim of this study was to identify the need for orthodontic treatment in Turkey and the differences between the 7 geographic regions. Materials and Methods: In the orthodontic part of the survey, extraoral and intraoral examination of 1023 randomly selected individuals (500 female and 523 male, mean ages 13.1063.11 years) was performed. The need of orthodontic treatment was evaluated with the aesthetic component (AC) and dental health component (DHC) of the Index of Orthodontic Treatment Need (IOTN). To analyze the data, descriptive statistical methods (mean value, prevalence ratio, and standard deviation) were performed. The significance of regional IOTN differences and gender distributions were assessed by means of chi-square test. Results: No statistically significant differences were found in gender distribution in the total and different regional samples (p.0.05). According to the DHC, 28.7% did not need orthodontic treatment, 16.3% were borderline cases, and 55.0% had severe need for orthodontic therapy. Little or no need for treatment was found in 91

The Effect of Awareness of American Board of Orthodontics Criteria on Treatment Outcomes in a Postgraduate Dental Clinic

“…In the year that followed, all finished cases in the clinic were assessed by the same investigator, for a total of more than 2,000 cases until 2015. The principal investigator was also enrolled in a national oral health epidemiologic survey conducted with 3,040 individuals in seven regions in Turkey to analyze the national orthodontic treatment need using IOTN 12 …”

“…Orthodontic treatment need has been assessed with other occlusal indices such as the Handicapping Labio‐Lingual Deviation Index, Treatment Priority Index, Occlusal Index, Standardized Continuum of Aesthetic Need Index, and Index of Orthodontic Treatment Need (IOTN) 11 , 12 . The need for orthodontic treatment was classified by IOTN with both dental health components (DHC) and aesthetic components (AC) 13 , 14 .…”