Confiabilidade e validade do Índice de prioridade de tratamento / Reliability and validity of the Treatment Priority Index (TPI)

AUTOR(ES)

Renata Biella de Salles Oliveira

DATA DE PUBLICAÇÃO

2011

RESUMO

The present study sought to estimate the reliability and validity of the Treatment Priority Index (TPI) for assessment of occlusal changes through analysis of 200 dental casts from the files of the Department of Orthodontics at Bauru Dental School, selected as a representative sample of the various types of malocclusion. These casts were evaluated twice: first, by a panel of 16 experienced orthodontists, who carried out subjective assessments of the severity of malocclusion and predicted the difficulty and duration of the required treatment. In another moment, the casts were assessed with the TPI by two orthodontists calibrated beforehand. The intrarater reliability was tested by means of reassessment of 50 pairs of models, with an intraclass correlation coefficient (ICC) and the dependent t-test. The inter-rater reliability was estimated considering all 200 casts, through the ICC and the independent t-test. Finally, the validity of the index was assessed by comparison between average TPI scores and subjective perceptions through Pearsons correlation coefficient. For comparative purposes, dental casts were also analyzed using the PAR (Peer Assessment Rating) index, a valid and widely accepted instrument for assessment of occlusal outcomes. Results showed that the TPI is a highly reproducible index, as is the PAR, with high levels of inter-rater (ICC=0.97) and intra-rater reliability (ICC1=0.97, ICC2=0.96), and is a valid instrument for assessment of malocclusion severity (R=0.25), treatment difficulty (R=0.24) and treatment duration (R=0.29). However, despite their statistical significance, the TPI correlations were very weak, particularly on comparison with the PAR. Despite its reproducibility, the TPI has very limited validity for assessment of occlusal changes provided by the orthodontic treatment.

ASSUNTO(S)

má oclusão malocclusion reproducibility reprodutibilidade validade validity

Documentos Relacionados

• Validity and reliability in computerized Million Index of personality styles
• Otimização de pilares de concreto armado mediante uniformização do índice de confiabilidade
• Software de aprendizagem e controle motor para avaliação de indivíduos hemiparéticos : validade e confiabilidade
• Validade e confiabilidade de \"Questionário de qualidade de vida de pessoas com Espinha Bífida
• Reliability and validity of the brazilian version of the postural control and balance scale for stroke