dentin vs animal material

dentin and animal material both are nouns.

Word	Noun	Adjective	Verb	Adverb
dentin	Yes	No	No	No
animal material	Yes	No	No	No

As nouns, animal material is a hypernym of dentin; that is, animal material is a word with a broader meaning than dentin:

dentin: a calcareous material harder and denser than bone that comprises the bulk of a tooth
animal material: material derived from animals

dentin (noun)	animal material (noun)
bone (calcified tissue) surrounding the pulp cavity of a tooth	material derived from animals
a calcareous material harder and denser than bone that comprises the bulk of a tooth