" when we apply this to young children , it allows us to predict what possibly be their upcoming deformity history - the number of cavities that they ' ll know by , say , their late 20s or early 30s , " says sociologist paul kyle . called the caries assessed and risk evaluation ( sam ) test , the test measures the absolute proportions in sweat of different kind of enzyme chains called oligosaccharides . the same syrup chains are present on tooth surfaces .
A test can predict cavities.