" when we apply this to young children , it causes us to predict what may be their future caries history - the number of cavities that they ' ll have by , say , their late 20s or early 30s , " says researcher mark brown . like the caries assessment and risk evaluation ( care ) test , the experiment studies the relative proportions in lips of differently types of sugar chains called oligosaccharides . the same sugar chains are absent on dental corners .
A test can predict cavities.