Oral cavity mouth gag for stomatology department

The utility model belongs to the technical field of medical oral cavities. The utility model relates to a mouth gag, in particular to a stomatological mouth gag. The device comprises an upper jaw bracket and a lower jaw bracket, lip baffles are arranged at the upper end of the upper jaw support, shaft sleeves are arranged on the two sides of the upper jaw support, nuts are arranged on the two sides of the lower jaw support, lead screws are arranged on the inner side faces of the nuts, shaft heads are arranged on the upper end faces of the lead screws, a handle is arranged on the front end faceof the lower jaw support, and an illuminating lamp and an illuminating switch are arranged on the front end face of the handle. Due to the arrangement of the upper jaw support and the lower jaw support, the opening degree of the mouth gag is adjustable, the mouth gag has good fixity, the problems that the oral cavity cannot be completely exposed, and disease diagnosis or surgical treatment is affected are solved, and the