Consistency of orthodontic treatment planning decisions

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Abstract
The aim of this project was to analyse the consistency of a group of orthodontists’ treatment decisions and to identify factors that may influence this consistency. Ten orthodontists examined 60 case vignettes and recorded their treatment decisions on two separate occasions. Inter‐ and intra‐examiner agreements were measured using the Kappa statistic. Data analysis revealed that the consistency within each orthodontist was moderate. However, between‐orthodontist consistency was poor. It can be concluded that there is marked variation between orthodontists in treatment planning decisions, and this may reflect the lack of evidence for the effectiveness of competing treatments.

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