The Impact of Domiciliary Dental Care and Oral Health Promotion in Nursing Homes of Older Adults: A Systematic Review

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Background: The global increase in the population older than 80 years has led to a paradigm shift centered in the hospital environment, with the inclusion of domiciliary oral health actions improving quality of life. This review evaluates the effects of domiciliary dental care and oral health promotion in nursing homes of older adults. Methods: Seven databases were searched without date restrictions from 15 September to 21 November 2024. A manual search was also performed in the reference lists of the included articles. This research included studies evaluating older adults aged ≥80 years, regardless of sex, who received domiciliary dental care associated or not with oral health promotion, evaluating periodontal condition, dental caries, and the dental and denture plaque index. Regarding data collection and analysis, a risk of bias assessment was performed using RoB 2.0 and RoB 1.0, according to the study design. The level of evidence was assessed using the GRADE tool. Results: Of the 2415 studies found, 5 met the eligibility criteria. After quality assessment, one randomized clinical trial presented a moderate risk of bias, and one presented a low risk. Also, two non-randomized studies presented a high risk and one a low risk. The certainty of evidence was classified as low for all outcomes assessed. One study demonstrated a reduction in the caries level of participants. Regarding periodontal and gingival conditions, although the occurrence of deep pockets (greater than 3.5 mm) decreased over time, there was no significant difference between the control and intervention groups. The level of dental and denture plaque showed a slight reduction. Conclusion: There is limited evidence that domiciliary dental care in nursing homes for older adults can lead to a reduction in caries levels and that oral health programs can reduce dental and denture plaque in evaluations conducted over periods of up to two years. Although the results show a limited magnitude, this does not diminish the importance of promoting domiciliary oral health care.

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