Labels:box | bulletin board | cell | dialog box | earth | mountain | poster | sky | windowpane OCR: DENTIN ENTIN is a hard, vellowish inner pulp cavity Dentin is tough, material, rather like bone. but not as tough as enamel, and It m akes up most of the bulk of a has network channels running tooth lying underneath the outer through you lose some dentin, enamel lay er and surrounding the it can be replaced unlike enamel. Channel Dentin yellowish
