orthodonture vs orthodontics

orthodonture and orthodontics both are nouns.

Word	Noun	Adjective	Verb	Adverb
orthodonture	Yes	No	No	No
orthodontics	Yes	No	No	No

As nouns, orthodonture and orthodontics are synonyms defined as:

orthodonture and orthodontics: the branch of dentistry dealing with the prevention or correction of irregularities of the teeth

Other synonyms of orthodonture include dental orthopaedics, dental orthopedics, orthodontia.

orthodonture (noun)	orthodontics (noun)
the branch of dentistry dealing with the prevention or correction of irregularities of the teeth	the branch of dentistry dealing with the prevention or correction of irregularities of the teeth