Dentin grows more brittle with age.
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology*; D001696:Biomechanical Phenomena; D003799:Dental Stress Analysis; D003804:Dentin / Q000737:chemistry / Q000502:physiology* / Q000648:ultrastructure; D006801:Humans; D008875:Middle Aged; D055815:Young Adult