Relationship between Two Indices in the Assessment of Orthodontic Treatment Complexity and Need.
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Date
2015
Journal Title
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Abstract
Objective: To determine the relationship between the Index of Complexity, Outcome and Need
(ICON) and Dental Aesthetic Index (DAI) in the assessment of orthodontic treatment complexity
and need.
Methods: A cross-sectional study was carried out. Pre-treatment dental casts of 150 consecutive
patients from Lagos, Nigeria were assessed using the ICON and the DAI criteria. One investigator
assessed all the models. In addition to descriptive statistics, the relationship between the ICON
and DAI was examined by using non-parametric correlations (Spearman Rank Order and
Pearson’s Product Moment Correlation Coefficient. Results: Forty-five (30%) of the subjects were classified by both ICON and DAI as having no
treatment need. Of the 25(16.7%) that ICON classified as having difficult / very difficult complexity
grades, 19(12.7%) of them were classified as having handicapping malocclusions by DAI
standards. There was a significant correlation between DAI and ICON with regard to treatment
need (p = 0.000). Also, there was a very statistically significant correlation between the ICON
complexity grades and the DAI severity levels of malocclusion (p = 0.000). In general, both indices
exhibited highly significant positive correlations (r = 0.600; p = 0.000).
Conclusion: Both indices were generally in agreement on both aspects of orthodontic provision
assessed. This suggests that both ICON and DAI can be used in the assessment of these facets of
orthodontic care.
Description
Keywords
Orthodontics, indices, patients, Nigeria
Citation
Utomi Ifeoma Linda, Onyeaso Chukwudi Ochi. Relationship between Two Indices in the Assessment of Orthodontic Treatment Complexity and Need. British Journal of Medicine and Medical Research. 2015; 7(6): 519-528.