The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 8 , ISSUE 3 ( March, 2007 ) > List of Articles

RESEARCH ARTICLE

Orthodontic Treatment Complexity and Need in a Group of Nigerian Patients: The Relationship between the Dental Aesthetic Index (DAI) and the Index of Complexity

Chukwudi Ochi Onyeaso

Citation Information : Onyeaso CO. Orthodontic Treatment Complexity and Need in a Group of Nigerian Patients: The Relationship between the Dental Aesthetic Index (DAI) and the Index of Complexity. J Contemp Dent Pract 2007; 8 (3):37-44.

DOI: 10.5005/jcdp-8-3-37

License: CC BY-NC 3.0

Published Online: 01-03-2007

Copyright Statement:  Copyright © 2007; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The aim of this retrospective analytical study was to assess the relationship between the Dental Aesthetic Index (DAI) and the Index of Complexity, Outcome, and Need (ICON) on the orthodontic treatment need and complexity in a group of Nigerian patients.

Methods and Materials

Fifty-six cases were randomly selected from the model storage of the orthodontic unit of the University College Hospital in Ibadan, Nigeria. The ICON was used to assess the pre-treatment study models for orthodontic treatment need and complexity of the cases while the DAI was also used to assess the same cases for treatment need. Descriptive statistics as well as the non-parametric (Spearman Rank-Order and Pearson's Product Moment) correlations were used to analyze the data.

Results

The mean ICON and DAI scores were 67.38±19.63 (SD) and 42.27±12 .66 (SD), respectively. Both the ICON and DAI agreed that one (1.8%) case did not need treatment while 46 (82.1%) needed treatment. All the difficult and very difficult cases according to the ICON were assessed as needing treatment by the DAI with 18 (13.1%) out of 22 (39.3%) in the very difficult category belonging to the handicapping group where treatment was mandatory. In all positive significant correlations were recorded for the ICON and DAI scores.

Conclusion

The ICON and DAI showed favorable agreement when used to assess treatment needs through the use of study casts. The ICON could be a good substitute for the DAI in assessing pre-treatment needs of Nigerian patients.

Citation

Onyeaso CO. Orthodontic Treatment Complexity and Need in a Group of Nigerian Patients: The Relationship between the Dental Aesthetic Index (DAI) and the Index of Complexity, Outcome, and Need (ICON). J Contemp Dent Pract 2007 March;(8)3:037-044.


PDF Share
  1. A 2-Center Comparison of Orthodontists’ Perceptions of Orthodontic Treatment Difficulty. Angle Orthod 2001;71:404-410.
  2. The development of the Index of Complexity, Outcome and Need (ICON). J Orthod 27: 149-62.
  3. Handicapping labio-lingual deviations: a proposed index for public health purposes. Am J Orthod 1960;46:295-305.
  4. Orthodontic treatment priority index National Centre for Health Services, Series II, No. 25. Washington (DC): Department of Health, Education and Welfare; 1967.
  5. Handicapping malocclusion assessment to establish treatment priority. Am J Orthod 1968;54:749-765.
  6. The Occlusal Index: A system for identifying and scoring occlusal disorders. Am J Orthod 1971;59:552-566.
  7. Post-retention analysis of treatment problems and failures in 264 consecutively treated cases. Eur J Orthod 1979;1:55-58.
  8. DAI: The Dental Aesthetic Index. Iowa City, Iowa: University of Iowa, 1986.
  9. Preliminary evaluation of an illustrated scale for rating dental attractiveness. Eur J Orthod 1987;9:314-318.
  10. The development of an index of orthodontic treatment priority. Eur J Orthod 1989;11:309-20.
  11. Quality control in orthodontics. Indices of treatment need and outcome. Br Dent J 1991;170:107-112.
  12. The use of occlusal indices: an European Perspective. Am J Orthod Dentofacial Orthop 1995;107:1-10.
  13. Geneva: World Health Organization; 1989.
  14. Utility of the Dental Aesthetic Index in industralized and developing countries. J Pub Health Dent 1989;49:163-166.
  15. Establishing malocclusion severity levels on the Dental Aesthetic Index. Aust Dent J 19906; 41: 43-46.
  16. Prevalence of malocclusion in high school students in Japan according to the Dental Aesthetic Index. Community Dent Oral Epidemiol 1993;21:303-305.
  17. Orthodontic treatment of Nigerian outpatients assessed with the Dental Aesthetic Index. Aust Orthod J 2004;20(1):19-23.
  18. Potential application of the dental aesthetic index to prioritize the orthodontic service needs in a publicly funded dental program. Am J Orthod Dentofacial Orthop 1999;116:279-286.
  19. Validity of the Index of Complexity, Outcome and Treatment Need. Angle Orthod 2002;72:15-20.
  20. Validation of the complexity and treatment outcome components of the Index of Complexity, Outcome and Need (ICON). Am J Orthod Dentofacial Orthop 2003;124:244-248.
  21. Orthodontic treatment standards in Greece. Hel. Orthod Rev. 2001;4:9-20.
  22. A comparison of the Index of Complexity, Outcome and Need (ICON) with the Peer Assessment Rating (PAR) and the Index of Orthodontic Treatment Need (IOTN). Br Dent J 2002; 193(4): 225-230.
  23. An assessment of relationship between self-esteem, orthodontic concern, and Dental Aesthetic Index (DAI) scores among secondary school students in Ibadan, Nigeria. Int Dent J 2003;53:79-84.
  24. Relationship between the Index of Complexity, Outcome and Need (ICON), Dental Aesthetic Index (DAI), Peer Assessment Rating (PAR) Index and American Board of Orthodontics objective grading system (ABO-OGS). Am J Orthod Dentofacial Orthop 2007;131(2):248-52.
  25. The relationship between Index of Complexity, Outcome and Need, and patients’ perceptions of malocclusion: a study in general dental practice. Br Dent J 2001; 191(6): 325-329.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.