" when we do this to young children , it enable researchers to determine whose might be their next caries records - the numbers of cavities that they ' ll get by , say , their near 20s or early 30s , " says study peter dennis . called the caries assessment and impact evaluation ( care ) test , the experiment measures the comparative proportions in saliva of various types of sugar chains called oligosaccharides . the same sugar chains are found on chewing surfaces .
A test can predict cavities.