alveolar ridge vs gum ridge

alveolar ridge and gum ridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
alveolar ridge	Yes	No	No	No
gum ridge	Yes	No	No	No

As nouns, alveolar ridge and gum ridge are synonyms defined as:

alveolar ridge and gum ridge: a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth

Other synonyms of alveolar ridge include alveolar process.

alveolar ridge (noun)	gum ridge (noun)
a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth	a ridge that forms the borders of the upper and lower jaws and contains the sockets of the teeth