Caries Experience in Elderly People Consuming a Milk-based Drink Nutritional Supplement, a Cross Sectional Study.

Nutritional supplements have been recommended to cope with malnutrition in elderly persons. In Chile, the Supplementary Nutrition Program for the Elderly (PACAM, for its Spanish acronym) consists in a monthly distribution of a low-fat-milk-based drink that contains 8% sucrose. The aim of this study was to determine whether older persons consuming the milk-based drink have a higher caries experience when compared to those not receiving the supplement. A cross-sectional study was conducted in the Maule Region in Chile. The representative sample comprised two groups: a) PACAM consumers (CS) (n=60) and b) Non-consumers (NCS) (n=60). Participants received intraoral examination and coronal (DMFT/DMFS) and root caries (RCI index) experience were recorded. Additionally, questionnaires regarding acceptability and consumption habits of PACAM and a 24-hour diet recall were applied. The influence of predictors was calculated using Binary Logistic Regression for a dichotomized DMFS and Poisson Regression for root caries lesions. A p-value<0.05 was considered significant. No differences were detected in food consumption patterns between study groups (p>0.05). CS participants had increased dairy product consumption. Higher DMFS mean value was observed in the CS (85.35 +/- 39.0) compared with NCS (77.28 +/- 28.9), (p=0.043). The multivariate analysis showed non-consumers of the milk-based product (beta= -0.41, p= 0.02), are less likely to have root surfaces affected by caries. Additionally, CS show higher RCI, compared to non-consumers (beta=-0.17, p=0.02). Daily consumption of a PACAM's milk-based drink supplement seems to increase coronal and root caries risk. Based on these results, composition modification of milk-based drinks with added sucrose, appears mandatory