Abstract By means of interviews and questionnaires a few problems relative to the interrelationships of the dentist and the orthodontist have been explored. The dentists who were asked to cooperate were found to be eager to improve their relationships. Although they are not confident that the orthodontist is so eager to participate in efforts toward such improvement, they will welcome all sincere overtures. There is apparent confusion as to practice and procedure. A study of this nature can best serve as a preliminary step toward the formulation of a program of study of the possibilities for improvement of the coordination of the functions of the dentist and the orthodontist.