Korean J Orthod.  2011 Dec;41(6):440-446. 10.4041/kjod.2011.41.6.440.

Associations between normative and self-perceived orthodontic treatment needs in young-adult dental patients

• Oshagh M
• Salehi P
• Pakshir H
• Bazyar L
• Rakhshan V

• KMID: 2273192
• DOI: http://doi.org/10.4041/kjod.2011.41.6.440

Abstract

OBJECTIVE
Our aim was to determine the correlation between dental treatment need as assessed by the components of the index of orthodontic treatment need (IOTN) and a self-evaluation questionnaire in a population selected from the dental clinics of Shiraz, Iran.
METHODS
The dental treatment needs of 240 participants (120 men and 120 women) were measured on the basis of the IOTN dental health component (IOTN-DHC), IOTN aesthetic component (IOTN-AC), IOTN AC determined by the examiner (IOTN-ACE), and a self-evaluation questionnaire (SEQ). The correlations between the treatment needs assessed by all the methods as well as the correlations of the treatment needs with age and gender were assessed using a Spearman's correlation coefficient (alpha = 0.01).
RESULTS
All methods were significantly correlated (p < or = 0.001). The associations of IOTN-ACE with IOTN-DHC and SEQ were moderately significant (rho = 0.49 and 0.41, respectively). The associations of IOTN-AC with IOTN-DHC and SEQ were weakly significant (rho = 0.24 and 0.35, respectively). The IOTN-DHC was moderately associated with SEQ (rho = 0.53). Gender and age were not associated with treatment needs estimated by any of the methods used (p > 0.06).
CONCLUSIONS
The correlations between the self-evaluation and the IOTN components in young adults were close to those reported in children, and IOTN-ACE was more reliable than IOTN-AC.

Keyword

Index of orthodontic treatment need (IOTN); Self-perceived orthodontic treatment need; Normative assessment; Correlation; Young adults

MeSH Terms

Child
Dental Clinics
Diagnostic Self Evaluation
Humans
Index of Orthodontic Treatment Need
Male
Surveys and Questionnaires
Young Adult

Figure

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  Fig. 1 The histogram of the IOTN-DHC scores (n = 120 men and 120 women). IOTN, Index of orthodontic treatment need; DHC, dental health component.

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  Fig. 2 The histogram of the rounded mean scores (without decimal places) of the self-evaluation questionnaire (n = 120 men and 120 women).

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  Fig. 3 The histogram of the IOTN-AC scores (n = 120 men and 120 women). IOTN, Index of orthodontic treatment need; AC, aesthetic component.

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  Fig. 4 The histogram of the IOTN-ACE scores (n = 120 men and 120 women). IOTN, Index of orthodontic treatment need; ACE, AC determined by the examiner.

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