Perceptions of dental treatment need in Australian-born and migrant populations

The objective of this study was to investigate differences in self-perceived and dentist-determined treatment need in Australian-born and migrant residents of Australia. Participants in the National Survey of Adult Oral Health 2004–06 were categorized into six groups according to country of birth. Interview and examination data were used to analyze differences between self-perceived and the 'gold standard' examiner-determined treatment need, and to compare the accuracy of self-reporting according to country of birth. Self-reported treatment needs, defined as the need for a restoration and/or extraction, were cross-tabulated with clinically observed conditions and compared using a multivariable logistic regression model. Concordance between self-reported and clinically-determined treatment need differed significantly for migrants from Europe and the UK and Australian-born individuals. In the logistic regression model, stratification according to examiner-determined treatment need revealed significantly greater reporting of treatment need by Asian-born migrants than by the Australian-born reference group. The results of this study demonstrate that self-perceived treatment need was less than the examiner-determined findings in European and UK migrant groups and Australian-born individuals. Additionally, Asian migrants were more likely than Australian-born individuals to over-report treatment need for a filling and/or extraction.

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