Peer Assessment Rating (PAR) index outcomes for orthodontic and orthognathic surgery patients

Background: The evaluation of orthodontic treatment outcomes using an objective method is important in order to maintain high treatment quality and final healthcare of patients. It allows professionals and university students to raise the level of the therapy. The aim of this study was to assess the orthodontic treatment outcomes in an Italian postgraduate School of Orthodontics using Peer Assessment Rating (PAR) Index. Methods: A sample of 50 patients treated in a postgraduate program was randomly selected. PAR index was used to assess pre-treatment and post-treatment study casts by two different examiners. The influence of different variables such as gender, treatment method, and need for extraction was statistically analyzed. Results: The average numerical reduction of PAR between the beginning and the end of the treatment was 18.74 (CI 95% 16.53–20.95), while the percentage reduction was 94.8% (CI 95% 91.91–97.68). All cases improved: 8% of patients resulted in the improved category, while 92% of them were in the greatly improved group. Conclusions: According to PAR index, the results showed that patients received a high-standard therapy. None of the factors studied influenced significantly the treatment outcomes.

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Validity and Reproducibility of the Peer Assessment Rating Index Scored on Digital Models Using a Software Compared with Traditional Manual Scoring

Journal of Clinical Medicine ◽

10.3390/jcm10081646 ◽

2021 ◽

Vol 10 (8) ◽

pp. 1646

Author(s):

Arwa Gera ◽

Shadi Gera ◽

Michel Dalstra ◽

Paolo M. Cattaneo ◽

Marie A. Cornelis

Keyword(s):

Peer Assessment ◽

Correlation Coefficients ◽

Minimum Standard ◽

Digital Models ◽

Intra Class Correlation ◽

Par Index ◽

Peer Assessment Rating Index ◽

The Mean ◽

Digital Caliper ◽

Peer Assessment Rating

The aim of this study was to assess the validity and reproducibility of digital scoring of the Peer Assessment Rating (PAR) index and its components using a software, compared with conventional manual scoring on printed model equivalents. The PAR index was scored on 15 cases at pre- and post-treatment stages by two operators using two methods: first, digitally, on direct digital models using Ortho Analyzer software; and second, manually, on printed model equivalents using a digital caliper. All measurements were repeated at a one-week interval. Paired sample t-tests were used to compare PAR scores and its components between both methods and raters. Intra-class correlation coefficients (ICC) were used to compute intra- and inter-rater reproducibility. The error of the method was calculated. The agreement between both methods was analyzed using Bland-Altman plots. There were no significant differences in the mean PAR scores between both methods and both raters. ICC for intra- and inter-rater reproducibility was excellent (≥0.95). All error-of-the-method values were smaller than the associated minimum standard deviation. Bland-Altman plots confirmed the validity of the measurements. PAR scoring on digital models showed excellent validity and reproducibility compared with manual scoring on printed model equivalents by means of a digital caliper.

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American Board of Orthodontics (ABO) Discrepancy Index and peer assessment rating (PAR) index with models versus photographs

Journal of the World Federation of Orthodontists ◽

10.1016/j.ejwf.2021.11.004 ◽

2022 ◽

Author(s):

Monir Horriat ◽

Nicole Bailey ◽

Baha Atou ◽

Patrícia Bittencourt Santos ◽

Fabio Henrique de Sa Leitao Pinheiro

Keyword(s):

Peer Assessment ◽

American Board Of Orthodontics ◽

Par Index ◽

Discrepancy Index ◽

Peer Assessment Rating

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