" when we compare this to younger child , it gives us to determine what might be their future deformity time - the amount of crevices that they ' ll get by , say , their late 20s or early 30s , " says scholar paul denny . called the caries assess and risk rating ( care ) examination , the test measures the relative proportions in saliva of particular kinds of sugar chained called oligosaccharides . the same sugar pairs are present on tooth surfaces .
A test can predict cavities.