A 29-year-old patient complains about acute attack-like pain in the region of his upper jaw on the left, as well as in the region of his left maxillary sinus, eye and temple. The pain is long-lasting (2-3 hours), it is getting worse at night. The patient has a history of recent acute respiratory disease. Objectively: the 26 tooth has a carious cavity, floor probing is painful, thermal stimuli cause long-lasting pain, percussion causes slight pain. What is the most likely diagnosis?