Jamieson, L.Do, L.Kapellas, K.Chrisopoulos, S.Luzzi, L.Brennan, D.Ju, X.2021-06-042021-06-042021Australian Dental Journal, 2021; 66(S1):1-80045-04211834-7819http://hdl.handle.net/2440/130587Background: Historically, Indigenous Australians experienced poorer oral health than non-Indigenous Australians. We aimed to ascertain if Indigenous Australian oral health improved relative to non-Indigenous oral health between 2004-06 and 2017-18 National Surveys of Adult Oral Health (NSAOH). Methods: Both NSAOHs were population-based cross-sectional surveys of Australian adults aged 15 years or more. In both surveys, representative samples of adults were drawn through a three-stage, stratified sample design within metropolitan and regional areas in each state/territory. Frequencies of Indigenous and non-Indigenous self-reported and clinical oral health variables were ascertained, and differences calculated, between the 2004-06 and 2017-18 NSAOHs. Ninety five percent confidence intervals were calculated and weights were used to account for the complex sampling methodology of both surveys. Results: In 2004-06, 229 Indigenous and 13,882 non-Indigenous Australians provided self-report data, and 87 and 5418 of these had dental examinations, respectively. In 2017-18, 334 Indigenous and 15,392 non-Indigenous Australians provided self-report data, and 84 and 4937 of these had dental examinations, respectively. Between the surveys, relative to their non-Indigenous counterparts, Indigenous Australians experienced greater levels of; inadequate dentition (4.2%), experience of toothache (4.8%), problem-based dental attendance (4.5%) and 1+ teeth decayed, missing or filled (4.4%). Conclusions: The gap between poor self-reported and clinical oral health between Indigenous and non-Indigenous Australians was greater in the more recent survey.en© 2021 Australian Dental AssociationIndigenousOral HealthOral health-related quality of life (OHRQoL)Journal article100004034210.1111/adj.128490006491714000012-s2.0-85105535557573958Jamieson, L. [0000-0001-9839-9280]Do, L. [0000-0003-3684-9949]Kapellas, K. [0000-0002-3761-9953]Chrisopoulos, S. [0000-0002-0192-4382]Luzzi, L. [0000-0002-5450-6483]Brennan, D. [0000-0002-7888-0920]Ju, X. [0000-0003-4759-3918]