Journal Article

Index of Complexity, Outcome and Need scored on plaster and digital models

A. C. Veenema, C. Katsaros, S. C. Boxum, E. M. Bronkhorst and A. M. Kuijpers-Jagtman

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 31, issue 3, pages 281-286
Published in print June 2009 | ISSN: 0141-5387
Published online March 2009 | e-ISSN: 1460-2210 | DOI:
Index of Complexity, Outcome and Need scored on plaster and digital models

More Like This

Show all results sharing this subject:

  • Restorative Dentistry and Orthodontics


Show Summary Details


The aim of this study was to compare standard plaster models with their digital counterparts for the applicability of the Index of Complexity, Outcome, and Need (ICON). Generated study models of 30 randomly selected patients: 30 pre- (T0) and 30 post- (T1) treatment. Two examiners, calibrated in the ICON, scored the digital and plaster models. The overall ICON scores were evaluated for reliability and reproducibility using kappa statistics and reliability coefficients.

The values for reliability of the total and weighted ICON scores were generally high for the T0 sample (range 0.83–0.95) but less high for the T1 sample (range 0.55–0.85). Differences in total ICON score between plaster and digital models resulted in mostly statistically insignificant values (P values ranging from 0.07 to 0.19), except for observer 1 in the T1 sample. No statistically different values were found for the total ICON score on either plaster or digital models.

ICON scores performed on computer-based models appear to be as accurate and reliable as ICON scores on plaster models.

Journal Article.  3246 words.  Illustrated.

Subjects: Restorative Dentistry and Orthodontics

Full text: subscription required

How to subscribe Recommend to my Librarian

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.