secondary dentition vs teeth

secondary dentition and teeth both are nouns.

Word	Noun	Adjective	Verb	Adverb
secondary dentition	Yes	No	No	No
teeth	Yes	No	No	No

As nouns, teeth is a hypernym of secondary dentition; that is, teeth is a word with a broader meaning than secondary dentition:

secondary dentition: dentition of permanent teeth
teeth: the kind and number and arrangement of teeth (collectively) in a person or animal

Other hypernyms of secondary dentition include dentition.

secondary dentition (noun)	teeth (noun)
dentition of permanent teeth	the kind and number and arrangement of teeth (collectively) in a person or animal