A 13-year-old boy complains of general weakness, high body temperature up to 39°C, lack of appetite, constant pain in the body of the lower jaw. Objectively: observed is significant asymmetry of the face caused by soft tissues swelling in the left buccal and submandibular areas. Mouth opening is reduced. Intraoral examination revealed the following: the 34, 35, 36, and 37 teeth are mobile; teeth percussion is painful. The crown of the 36 tooth is completely destroyed. The mucosa of those teeth is hyperemic and painful when palpated.Mufflike enlargement of the lower jaw alveolar process is detected. What is the most likely diagnosis?