Researchers at the Federal University of Pelotas (Brazil) used a meta-analysis and meta-regression to study the effect of diet in tooth erosion presence in children and adolescents (8-19 years). Thirteen observational studies were selected from several electronic databases by two independent reviewers. A random-effects model was used in case of heterogeneity.
Yogurt has an anticariogenic effect
High intake of carbonated drinks (p=0.001), acidic snacks/sweets (p=0.01) and acidic fruit juices (p=0.03) increased the occurrence of tooth erosion, while high consumption of milk (p=0.028) and yogurt (p=0.002) reduced tooth erosion and demonstrates a preventive effect. Heterogeneity was observed for soft drinks, confectionary, snacks and acidic fruit juices, this might be explained by other influencing variables, such as food groups and regular tooth brushing.