" when we apply this to our children , it enabled us to predict when might be their next age-related geschichte - the volume of cavities that they ' ll have by , say , their late 20s or early 30s , " says researcher paul denny . called the caries assessment and risk evaluation ( gi ) test , the study measures the relative proportions in saliva of different types of enzyme chains called oligosaccharides . the same sugar chains are identified on tooth surfaces .
A test can predict cavities.