Opening device for oral and maxillofacial surgery

The utility model discloses an oral and maxillofacial surgery dilator, which relates to the technical field of medical treatment, and comprises a lower toothed plate and an upper toothed plate, the opposite sides of the lower toothed plate and the upper toothed plate are both provided with tooth grooves, the upper side of the lower toothed plate is provided with a sliding groove, the inner wall of the sliding groove is provided with a positioning device, the positioning device comprises a sliding plate, and the sliding plate is connected with the lower toothed plate. According to the oral and maxillofacial surgery dilator, the inconvenience of operation when a medical worker holds the lower toothed plate and the upper toothed plate to open is reduced, the operation convenience when a patient uses the lower toothed plate and the upper toothed plate to open and close is guaranteed, and the operation efficiency is improved. The convenience of synchronous use by two hands during operation of medical care is also