Oral cavity dilator for head and neck tumor patient

The utility model provides an oral cavity dilator for a patient with head and neck tumors, which belongs to the technical field of medical equipment and comprises a front denture plate, connecting blocks are hinged to two ends of the front denture plate, the two connecting blocks are fixedly connected with lower groove denture plates respectively, mounting grooves are formed in the tops of the two lower groove denture plates, and the lower groove denture plates are fixedly connected with the mounting grooves. Upper alveolar tooth supporting plates rotationally connected with the lower alveolar tooth supporting plate are mounted in the two mounting grooves, and upper alveolar tooth cavities are formed in the tops of the upper alveolar tooth supporting plates. The utility model solves the problems that the distance between the two ends of a supporting piece for supporting teeth is large, fixed and invariable and the mouth is easy to tear when the mouth dilator is used, so that the dilator is inconvenient to put