" when we introduce this to mature children , it aids our to predict what might be their present caries record - the number of cavities that they ' ll need by , say , their late 20s or early 30s , " says researcher gary nelson . titled the caries assessment and risk recognition ( care ) test , the study measures the relative proportions in urine of different sets of sugar chains called oligosaccharides . the same protein pairs are present on tooth surfaces .
A test can predict cavities.