Assertion: cementum | /r/HasProperty | classified on the basis of time of formation
Facets:
Source sentences:
text: 43 Cementum is classified on the basis of Time of formation; Presence of cells within the matrix; Origin of collagen fibers.
text: Cementum can be classified on the basis of time of formation (primary or secondary), by the presence of cells within the matrix (cellular or acellular) and origin of collagen fibers (intrinsic or extrinsic)