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Treatment and standard evaluation using the Peer Assessment Rating Index
G Willems1, R Heidbüchel, A Verdonck
1Department of Orthodontics, School of Dentistry, Oral Pathology and Maxillofacial Surgery, Faculty of Medicine, Katholieke Universiteit Leuven, Kapucijnenvoer 7, 3000 Leuven, Belgium. guy.willems@med.kuleuven.ac.be
Clinical Oral Investigations
|May 18, 2001
Summary
Orthodontic treatment outcomes were evaluated using the Peer Assessment Rating (PAR) index. Postgraduate students achieved a higher treatment standard, with examination patients showing greater PAR score reduction than controls.
Area of Science:
- Dentistry
- Orthodontics
Background:
- Assessing the quality of orthodontic treatment provided by postgraduate students is crucial for educational standards.
- Evaluating treatment outcomes helps identify areas for improvement in orthodontic education and practice.
Purpose of the Study:
- To retrospectively determine and compare the orthodontic treatment outcomes of patients treated by postgraduate students at Katholieke Universiteit Leuven.
- To assess the effectiveness of non-surgical orthodontic interventions based on the Peer Assessment Rating (PAR) index.
Main Methods:
- A retrospective study comparing 292 'final examination' patients with 287 'control' patients treated between 1987 and 1996.
- Utilized dental casts and the Peer Assessment Rating (PAR) index to quantify treatment outcomes.
- Employed a variant of the analysis of covariance for data analysis.
Main Results:
- Final examination patients demonstrated a significantly higher treatment standard (P < 0.001) compared to the control group.
- Mean percentage PAR score reduction was 79.1% for examination patients versus 70.7% for controls.
- 44.5% of examination patients and 44.0% of controls achieved 'Greatly improved' outcomes; only 3.1% of examination patients and 7.3% of controls were 'Worse or no different'.
Conclusions:
- Orthodontic treatment provided by postgraduate students, particularly those undergoing final examination, achieved a high standard of care.
- The Peer Assessment Rating (PAR) index is an effective tool for evaluating orthodontic treatment outcomes in an educational setting.
- Results indicate successful non-surgical orthodontic interventions with a low percentage of unfavorable outcomes.