Proposal for a Conceptual Framework for the Development of Geriatric Dentistry.

Demographic changes with an increasingly higher proportion of older adults worldwide and an epidemiologic transition resulting in more teeth retained and higher demand and expectations set up new scenarios for the oral health of the older population. Thus, geriatric dentistry must be reconfigured, transitioning from the traditional focus on prosthesis to a more holistic discipline, actively incorporating geriatric and gerontologic aspects. We describe some situations that provide the rationale for a new conceptual framework for the advancement of geriatric dentistry as a clinical specialty. On the basis of scientific evidence and our academic experience, we propose 4 concepts that should steer the discipline during the following years and become its structural pillars: minimal intervention dentistry, oral functionality, patient-centered care, and interdisciplinary teamwork. Since data and evidence are limited, a special focus on poor and developing countries is incorporated. Adjusting clinical guidelines and public health policies around these concepts will increase access to oral care for older people, including those with physical or social barriers, and will ensure better oral health-related quality of life and well-being. These concepts have deep consequences in the education and training of new dentists and specialists, at the public and private levels.

Anti-caries effect of fluoridated milk-based drink consumed by older adults on an in vitro root caries experimental model.

OBJECTIVE: This study aimed to evaluate the anti-caries effect of a fluoridated milk-based drink on a root caries model by assessing mineral loss and both biofilm microbial viability and acidogenicity under increasing concentrations of fluoride supplementation. DESIGN: Streptococcus mutans UA159 biofilms were grown on root dentin slabs for five days. The slabs were randomly assigned to following groups: milk-based drink (G1) and milk-based drink supplemented with 5-ppm NaF (G2), 10 ppm NaF (G3), and 20 ppm NaF (G4). A 10% sucrose and 0.9% NaCl solution were used as positive and negative-caries controls, respectively. Slabs/biofilms were exposed to the different treatments 3 times/day for 5 min. To estimate biofilm acidogenicity, the pH of the spent media was serially measured to calculate the area above the curve. Viable bacteria and dentin demineralization were assessed after the experimental phase. Results were compared using ANOVA followed by the Tukey test. RESULTS: G1 exhibited slightly lower acidogenicity than the positive caries control group (p < 0.05). G2, G3, and G4 induced lower acidogenicity than 10% sucrose and the non-supplemented milk-based drink. The lowest acidogenicity was found in G4 (p < 0.05). Fluoride-supplemented milk-based drinks (G2, G3, and G4) resulted in lower bacterial counts (p < 0.05) and induced lower demineralization (p < 0.05) than the positive caries control and non-supplemented milk-beverage (G1). There was a dose-dependent inhibition of demineralization with fluoride-supplemented milk-based drinks. CONCLUSIONS: Fluoride supplementation of a milk-based drink for older adults may reduce its cariogenicity in root dentin.