ArticleJournal of public health dentistry2022
Comparing the magnitude of oral health inequality over time in Canada and the United States.
Article in Journal of public health dentistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Socioeconomic Status and Dental Care Utilization in Older Adults: A Comparison Between Australia and Japan.Journal of public health dentistry · 2026Article
- Use of public and private oral health services by Brazilian adults from 2003 to 2023: trends and socioeconomic inequalities.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2026Article
- Education- and income-based inequalities of functional dentition by dental service utilization.Frontiers in oral health · 2025Article
- Canada's oral health and dental care inequalities and the Canadian Dental Care Plan.Canadian journal of public health = Revue canadienne de sante publique · 2023Article
- Article
- Comparing the magnitude of oral health inequality over time in Canada and the United States.Journal of public health dentistry · 2022Article
- Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo assess the magnitude of, and changes in, absolute and relative oral health inequality in Canada and the United States, from the 1970s till the first decade of the new millennium.
methodsData were obtained from four national surveys; two Canadian (NCNS 1970-1972 and CHMS 2007-2009) and two American (HANES 1971-1974 and NHANES 2007-2008). The slope and relative index of inequality were used to measure absolute and relative inequality, respectively. Percentage change in inequality was also calculated.
resultsRelative inequality for untreated decay increased by 91% in Canada and 189% in the United States, while for filled teeth it declined by 63% in Canada and 16% in the United States. Relative inequality in edentulism rose by 200% and 78% in Canada and United States, respectively. Absolute inequality declined in both countries.
conclusionsThere was persistent absolute and relative inequality in Canada and the United States. An increase in relative inequality for adverse outcomes suggests that improvements in oral health were occurring primarily among the rich, while reductions in relative inequality for filled teeth indicate higher utilization of restorative services among the poor. These results point to the necessity of tackling the sociopolitical determinants of health to mitigate oral health inequality in Canada and the United States.
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Registered trials
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