dental orthopedics vs dental orthopaedics

dental orthopedics and dental orthopaedics both are nouns.

Word	Noun	Adjective	Verb	Adverb
dental orthopedics	Yes	No	No	No
dental orthopaedics	Yes	No	No	No

As nouns, dental orthopedics and dental orthopaedics are synonyms defined as:

dental orthopedics and dental orthopaedics: the branch of dentistry dealing with the prevention or correction of irregularities of the teeth

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

dental orthopedics (noun)	dental orthopaedics (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