dental technician vs technician

dental technician and technician both are nouns.

Word	Noun	Adjective	Verb	Adverb
dental technician	Yes	No	No	No
technician	Yes	No	No	No

As nouns, technician is a hypernym of dental technician; that is, technician is a word with a broader meaning than dental technician:

dental technician: someone who makes dental appliances (bridges and dentures)
technician: someone whose occupation involves training in a specific technical process

dental technician (noun)	technician (noun)
someone who makes dental appliances (bridges and dentures)	someone whose occupation involves training in a specific technical process
	someone known for high skill in some intellectual or artistic technique