FILM HOLDER WITH ANGLE INDICATOR FOR INTRAORAL RADIOGRAPHY AND FILM SUPPORTING PART THEREOF

摘要

The film holder located at a lingual side of the teeth inside mouth to support a film for periapical radiography to obtain the radiographic image of the teeth and the teeth supporting structures comprises a bite portion temporarily fixed to the teeth; a film support portion rotatably mounted with respect to the bite portion and located at the lingual side of the teeth inside the mouth; and a film indicator rotatably mounted with respect to the bite portion, rotated with the film support portion, and located outside the mouth. Since the bite portion is detached from the film support portion, an angle of the film support portion can be varied to correspond to various oral structures of patients. Since angle change of the film support portion can be recognized externally, an irradiation angle of a radiation center line can easily be adjusted.