Assertion: mixed fiber cementum | /r/HasProperty | thick
Facets:
value: often
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: Smaller incisors, like those of rodents and lagomorphs, tend to have a simple layer of acellular extrinsic-fiber cementum (Fig. 2.18), whereas the massive tusks of the walrus, narwhal, and elephant are covered with cellular mixed-fiber cementum, which is often very thick and multilayered (Fig. 2.19).