A 52-year-old female patient complains of severe paroxysmal pain in the region of the 34 tooth. Throughout the year the 35,36,37 teeth were sequentially extracted because of pain complaints. Percussion of the 34 tooth causes acute paroxysmal pain. The same pain arises when talking and washing the projection area of the mental foramen. Clinical and roentgenologic examination revealed no signs of bone tissue destruction. What is the most likely diagnosis?