Malocclusion indices: A comparative evaluation

摘要: Abstract The precision or chance error and the bias systematic of three malocclusion indices were measured using same sample 130 dental casts taken on 11- to 15-year-old children seeking treatment at University Iowa Orthodontic clinic. Three objective examiners scored casts, with double determinations, Handicapping Malocclusion Assessment Record (HMAR), Occlusal Index (OI), Treatment Priority (TPI). A high degree reproducibility within was indicated by Pearson product-moment coefficients found: r = 0.714 0.908. Analysis variance used further check time periods (within examiners) no significant variability. Using coefficients, a also found between when combined scores from each examiner's first second examinations for index compared: 0.761 0.890. difference examiners. Inspection revealed that greatest in mean 1.92. Four subjective ranked according their need treatment. Spearman rank correlation determined rankings versus average rank. OI had highest indices: OIrs 0.742, TPIrs 0.551, HMARrs 0.532. Of tested this study, one can be selected over other, regard intra- inter-examiner differences. would choice having least amount bias, as results study.