OBJECTIVES This study was conducted to determine the orthodontic treatment need of the child population of the Valencia region of Spain, employing the DAI and the IOTN, to examine the relations between treatment need, socio-economic data and gender and to assess the diagnostic agreement between the two indices. STUDY DESIGN A cross-sectional descriptive study was conducted in a random represe...

The aim of this study was to assess the psychosocial impact of dental aesthetics using the ‘Psychosocial Impact of Dental Aesthetics Questionnaire’ (PIDAQ) and self-rated Aesthetic Component (AC) of the Index of Orthodontic Treatment Need (IOTN), and individual attitude to own teeth and general appearance. The cross sectional study was conducted among the students of Margalla Institute of Healt...

The aim of this study was to evaluate the ability of the indexes DAI and IOTN in predicting the need of orthodontic treatment based in one property: reproducibility. The index DAI was developed in USA in 1989 and can identify 10 occlusal alterations that result, mathematically, in scores, with weights based in its relative importance according with the judgment of laypeople. The IOTN was develo...

BACKGROUND Assess prevalence and severity of malocclus ion in 12 - 16 year old population of Travancore using IOTN index. Tertiary care setting, with the study being conducted in the Dept of Orthodontics at PMS Dental College & the samples being collected from four different dental health care centres. Study design is descriptive study. MATERIALS AND METHODS 120 pre- treatment study models of...

The purpose of orthodontic treatment is to get a functional occlusion and a good aesthetic result. More and more patients require orthodontic treatment and the main motivation is the improvement of smile aesthetics. Over the years, numerous indices have been developed to rank or score the severity of a malocclusion relative to a preconceived orthodontic ideal, or in terms of treatment need. One...

OBJECTIVE To assess the prevalence and severity of malocclusion in a large sample of 12-13-year-old children and to compare assessments of treatment need according to three methods. DESIGN A random sample of 5,112 Malaysian children was drawn according to a multi-stage technique which accounted for the ethnic composition of the population. Subjects were examined using both components of the I...

OBJECTIVE To evaluate the psychosocial impact of malocclusion, determine its relationship with the severity of malocclusion, and assess the influence of gender and social class on this relationship in adolescents. METHODS A random sample of 627 Spanish adolescents aged 12 - 15 years underwent intraoral examinations by 3 calibrated examiners (intraexaminer and interexaminer kappa > 0.85) at th...

OBJECTIVES The purpose of this study was to assess the validity and reliability of the Spanish version of PIDAQ for application in adolescents. STUDY DESIGN The questionnaire was translated, cross-culturally adapted and completed by 627 adolescents (366 12-year-olds and 261 15-year-olds). The adolescents were also examined by 4 examiners who had been calibrated against a gold standard and rel...