A patient complained about painful deglutition, difficult mouth opening. Several days ago the 47 tooth was removed because of acute condition of chronic periodontitis. The patient’s condition kept worsening. Body temperature is 37,9°C. Results of external examination: the face is symmetric, face skin is slightly pale. Right submandibular lymph nodes are enlarged, palpatory painful. Examination of oral cavity is impossible because of evident contracture of lower jaw (the mouth opens up to 0,5 cm between central incisors). What anesthesia will provide mouth opening?