pericementoclasia vs pyorrhea

pericementoclasia and pyorrhea both are nouns.

Word	Noun	Adjective	Verb	Adverb
pericementoclasia	Yes	No	No	No
pyorrhea	Yes	No	No	No

As nouns, pyorrhea is a hypernym of pericementoclasia; that is, pyorrhea is a word with a broader meaning than pericementoclasia:

Other hypernyms of pericementoclasia include pyorrhea alveolaris, pyorrhoea, Riggs' disease.

pericementoclasia (noun)	pyorrhea (noun)
pus pocket formation around a tooth	discharge of pus
	chronic periodontitis; purulent inflammation of the teeth sockets