3 days ago a 35-year-old patient underwent the extraction of the 47 tooth, which was followed by health deterioration. Objectively: the patient is pale, body temperature is of 38,1°C, the mandible on the left is thickened, the surrounding soft tissues are swollen, mouth opening is difficult. Mucogingival junction at the 48, 47, 46 teeth is edematous, mucous membrane is hyperemic. There are purulent discharges from the 47 tooth socket, the 48, 46, 45 teeth are sensitive to percussion. There is also paresthesia in the lower lip region. What is the most likely diagnosis?