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CC BY-NC-ND 4.0 · European Dental Research and Biomaterials Journal 2024; 05(01/02): 018-027
DOI: 10.1055/s-0044-1800819
Original Article

Correlation between Severity of Malocclusion and Case Complexity Using Dental Aesthetic Index and ABO Discrepancy Index

Authors

  • Chinar Dahiya 

    1   Department of Orthodontics and Dentofacial Orthopaedics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India

  • Shruti Mittal

    1   Department of Orthodontics and Dentofacial Orthopaedics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India

  • Prerna Hoogan Teja

    1   Department of Orthodontics and Dentofacial Orthopaedics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India

  • Astitav Mittal

    2   Maulana Azad Medical College, New Delhi, India

  • Komal Gulia

    1   Department of Orthodontics and Dentofacial Orthopaedics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India
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Abstract

Objective Dentomaxillary abnormalities manifest clinically as malocclusion. Any deviation from normal occlusion is malocclusion. It presents as a malrelationship between the dental arches in one or more planes or deviation in normal individual tooth positions. The present study was done to assess the association between severity of malocclusion and case complexity using the Dental Aesthetic Index (DAI) and American Board of Orthodontics Discrepancy Index (ABO-DI).

Material and Methodology The study was conducted on pretreatment orthodontic records of 120 patients who attended the outpatient department of the orthodontics department to assess the association between severity of malocclusion and case complexity using the DAI and the ABO-DI. Pretreatment orthodontic records used for the study were study casts, lateral cephalogram in occlusion, and orthopantomogram. ABO gauge was used for measuring various parameters on study casts.

Result In all, 3.3% patients had minor or no anomaly (DAI score of ≤25), 4.2% patients had definite malocclusion (DAI score of 26–30), 10% patients had severe malocclusion (DAI score of 31–35), 82.5% patients had handicapping malocclusion (DAI score of ≥36). In total, 6.7% patients had mild malocclusion (ABO-DI score of ≤10), 30% patients had moderate malocclusion (ABO-DI score of 11–20), and 63.3% patients had complex malocclusion (ABO-DI score of ≥30).

Conclusion There was a moderate positive correlation between DAI and ABO-DI scores (p = 0.000).

Keywords

malocclusion - DAI - ABO-DI - malocclusion indices - ABO gauge - study cast


Publication History

Article published online:
05 February 2025

© 2025. European Dental Research and Biomaterials Journal. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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