The Index of Orthodontic Treatment Needs (IOTN) and the Dental Aesthetic Index (DAI) were developed and both claimed to contain the aesthetic and dental components in their criteria of assessing malocclusion. This study was undertaken to assess the reliability of these two indices in assessing orthodontic treatment needs. The indices were applied to 120 pre-treatment study models selected from orthodontic patient records treated at the Department of Orthodontics, University of North Carolina, United States of America. The sample consisted of 60 African-Americans (Black) and 60 American Caucasians (White), age ranged from 12 to 16 years (Mean 13.8). The results showed that the IOTN and the DAI were highly correlated and highly associated statistically (p < 0.0001). The findings of this study indicated that the two indices could be used consistently to identify orthodontic treatment needs in different ethnic groups and are capable of classifying the subjects according to their malocclusion severity for those subjects eligible for treatment in fund constrained situation.
Needs Assessment , Orthodontics, Corrective , Adolescent , Black or African American , Case-Control Studies , Child , Esthetics, Dental , Female , Humans , Male , Malocclusion/classification , Malocclusion/therapy , Models, Dental , North Carolina , Reproducibility of Results , White People
The open bite malocclusion has been described as being of 2 types: dental and skeletal. Proper differentiation is essential in determining the appropriate corrective measures. Dental open bites are generally more responsive to treatment with orthodontics alone, whereas skeletal open bites often require a combination of orthodontics and orthognathic surgery. Patient selection and treatment principles for nonsurgical open bite treatment are discussed, and a review of various methods of treatment for the skeletal open bite is presented. Posttreatment stability and retention concerns are addressed.
Malocclusion/therapy , Orthodontics, Corrective/methods , Orthodontics, Corrective/statistics & numerical data , Adult , Cephalometry , Cuspid , Female , Glossectomy , Humans , Incisor , Malocclusion/diagnosis , Orthodontic Appliances , Patient Selection , Recurrence
Malocclusion, Angle Class II/therapy , Orthodontics, Corrective/methods , Adolescent , Bicuspid/surgery , Cephalometry/statistics & numerical data , Combined Modality Therapy , Extraoral Traction Appliances , Humans , Male , Malocclusion, Angle Class II/diagnosis , Maxilla , Orthodontic Retainers , Orthodontic Wires , Patient Care Planning , Tooth Extraction
