A comparison of two methods of assessing orthodontic treatment need in the mixed dentition: DAI and IOTN

Johnson, Mark; Harkness, Michael; Crowther, Paul; Herbison, Peter

doi:10.2478/aoj-2000-0011

Abstract

This paper assesses the unmet orthodontic treatment need in a random sample of 10-year-old schoolchildren, using two indices: the Dental Aesthetic Index (DAI) and the Index of Orthodontic Treatment Need (IOTN). The DAI scores were adjusted by omitting the missing teeth component of the index because many children were in the mixed dentition with unerupted permanent teeth. Although both indices assessed the same number of children with malocclusions requiring orthodontic treatment, not all were ranked similarly by each index.

References

Crowther P, Harkness M, Herbison P. Orthodontic treatment need in 10-year-old Dunedin schoolchildren. N Z Dent J 1997; 93: 72–8.
Search in Google Scholar Back to article
Johnson M, Harkness M. Prevalence of malocclusion and orthodontic treatment need in 10-year-old New Zealand children. Aust Orthod J 2000; 16: 1–8.
Search in Google Scholar Back to article
Brook PH, Shaw WC. The development of an index of orthodontic treatment priority. Eur J Orthod 1989; 11: 309–20.
Search in Google Scholar Back to article
Cons NC, Jenny J, Kohout FJ. DAI: The Dental Aesthetic Index. Iowa City: University of Iowa, 1986: 93–102.
Search in Google Scholar Back to article
Keay PA, Freer TJ, Basford KE. Orthodontic treatment need and the Dental Aesthetic Index. Aust Orthod J 1994; 13: 4–7.
Search in Google Scholar Back to article
Jenny J, Cons NC. Comparing and contrasting two orthodontic indices, the Index of Orthodontic Treatment Need and the Dental Aesthetic Index. Am J Orthod Dentofacial Orthop 1996; 110: 410–16.
Search in Google Scholar Back to article
Evans R, Shaw W. Preliminary evaluation of an illustrated scale for rating dental attractiveness. Eur J Orthod 1987; 9: 314–18.
Search in Google Scholar Back to article
Burden DJ, Holmes A. The need for orthodontic treatment in the child population of the United Kingdom. Eur J Orthod 1994; 16: 395–9.
Search in Google Scholar Back to article
Freer TJ. Need for reappraisal of the uses of indices. Aust Orthod J 1996; 14: 110.
Search in Google Scholar Back to article
Holmes A, Willmot DR. The Consultant Orthodontists Group 1994 survey of the use of the Index of Orthodontic Treatment Need (IOTN). Br J Orthod 1996; 23: 57–9.
Search in Google Scholar Back to article
Solow B. Guest Editorial: orthodontic screening and third party financing. Eur J Orthod 1995; 17: 79–83.
Search in Google Scholar Back to article
Plunkett DJ. The provision of orthodontic treatment: some ethical considerations. N Z Dent J 1997; 93: 17–20.
Search in Google Scholar Back to article
Estioko LJ, Wright FAC, Morgan MV. Orthodontic treatment need of secondary schoolchildren in Heidelberg, Victoria: an epidemiological study using the Dental Aesthetic Index. Community Dent Health 1994; 11: 147–51.
Search in Google Scholar Back to article
Otuyemi OD, Noar JH. A comparison between DAI and SCAN in estimating orthodontic treatment need. Int Dent J 1996; 46: 35–40.
Search in Google Scholar Back to article
Richmond S, Burden DJ, Buchanan IB, Turbill EA. Index of Orthodontic Treatment Need. Basic Introductory Course in the Use of Occlusal Indices. Manchester: University Dental Hospital of Manchester, 1992; 1–32.
Search in Google Scholar Back to article
Jenny J, Cons NC. Establishing malocclusion severity levels on the Dental Aesthetic Index (DAI) scale. Aust Dent J 1996; 41: 43–6.
Search in Google Scholar Back to article
Landis JR, Koch GG. The measurement of observer agreement for categorical data. Biometrics 1977; 33: 159–74.
Search in Google Scholar Back to article
Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986; February 8: 307–10.
Search in Google Scholar Back to article
Bland JM, Altman DG. Comparing two methods of clinical measurement: a personal history. Int J Epidemiol 1995; 24: S7–S14.
Search in Google Scholar Back to article
Ansai T, Miyazaki H, Katoh Y, et al. Prevalence of mal-occlusion in high school students in Japan according to the Dental Aesthetic Index. Community Dent Oral Epidemiol 1993; 21: 303–5.
Search in Google Scholar Back to article
Jenny J, Cons NC, Kohout FJ, Jakobsen J. Predicting handicapping malocclusion using the Dental Aesthetic Index (DAI). Int Dent J 1993; 43: 128–32.
Search in Google Scholar Back to article

A comparison of two methods of assessing orthodontic treatment need in the mixed dentition: DAI and IOTN

Abstract

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