A 50-year-old female patient complains of pain in the upper left jaw, high fever up to 38,5°C, worsening of her general condition. The disease onset was 3 days ago. Objectively: the face is asymmetrical due to swelling of the right cheek soft tissues, palpation is painful, the skin is hyperemic. The crown of the 16th tooth is destroyed completely; percussion sensitivity is positive. There is hyperemia and edema of the alveolar process soft tissues in the area of the 15th, 16th and 17th teeth vestibular surface. What is the most probable diagnosis?