Mouth holding device for radiotherapy of oral cavity tumor based on 3D printing

A mouth holding device for oral cavity tumor radiotherapy based on 3D printing comprises a supporting body, the rear portion of the supporting body is provided with an oral cavity hard palate supporting area, the top face of the oral cavity hard palate supporting area is provided with a hard palate supporting face, the middle of the upper end face of the supporting body is provided with an upper tooth occlusion area, and the rear portion of the lower end face of the supporting body is provided with a tongue pressing area. A lower tooth occlusion area is arranged in the middle of the lower end face of the supporting body, and an extending area is arranged at the front end of the supporting body. Accurate modeling can be carried out according to the opening degree of the oral cavity of a patient and the shape of the oral cavity, the shape and the thickness of the buccal device can be correspondingly adjusted, the comfortable buccal effect of the patient can be achieved, design modeling can be carried out accord