Root canal and Oral surgery are different.
Root canal is Endodontic therapy is a sequence of treatment for
the pulp of a tooth which results in the elimination of infection
and protection of the decontaminated tooth from future microbial
invasion.
specialist root canal doctors are known as endodontists.
Oral surgery is Oral and maxillofacial surgery is surgery to
correct a wide spectrum of diseases, injuries and defects in the
head, neck, face, jaws and the hard and soft tissues of the oral
and maxillofacial region.
Specialization in surgery is oral and maxillofacial surgeon.