Summary Review | Published:

Summary Review/Oral health

Oral health literacy, oral health behaviours and dental outcomes

Evidence-Based Dentistry volume 19, pages 6970 (2018) | Download Citation

Address for correspondence: Ramon Targino Firmino, Av Presidente Antonio Carlos, 6627- Pampulha, Belo Horizonte- MG 31270-901, Brazil. E-mail: ramontargino@gmail.com

Subjects

Abstract

Data sources

Eight electronic databases were searched: Medline (through PubMed), ISI Web of Science, Scopus, The Cochrane Library, National Institute for Health and Clinical Excellence, Lilacs and the Brazilian Library of Dentistry, Controlled-trials database of Clinical Trials and Clinical Trials-US National Institute of Health. A grey literature search was also conducted and reference lists of included studies were interrogated.

Study selection

Inclusion criteria were studies which examined the relationship between oral health literacy and one of the pre-defined outcomes including oral health behaviours, perception, knowledge and dental treatment outcomes. Epidemiological studies (such a case-control, cohort, cross-sectional and clinical trials) were included but qualitative studies, systematic reviews and those which examined unrelated outcomes were excluded.

Data extraction and synthesis

Two independent reviewers carried out screening, risk of bias assessment and data extraction for all studies against pre-agreed inclusion and exclusion criteria. The Newcastle-Ottawa Scale (a modified version for cross-sectional studies) and the Cochrane Risk of Bias tool were used for quality appraisal. A narrative synthesis was presented, with meta-analysis of a small sub-group of studies relating to one outcome.

Results

Twenty-five studies were included in the final review; 21 cross-sectional, two cohort, one case-control and one clinical trial. Most (17) were considered to be at high risk of bias and there was a high degree of clinical and methodological heterogeneity. No evidence was found of a significant association between oral health literacy and the outcomes considered.

Conclusions

The authors concluded that the current scientific evidence suggests that no association exists between oral health literacy and any of the outcomes investigated. Further prospective studies with high methodological quality are needed.

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Author information

Affiliations

  1. Department of Public Health, NHS Fife, Scotland

    • Jacky Burns
    •  & Niall McGoldrick
  2. Department of Public Health, NHS Ayrshire and Arran, Scotland

    • Morag Muir

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DOI

https://doi.org/10.1038/sj.ebd.6401318