[Analysis of treatment and results of periapical surgery]

The purpose of this investigation was to study the treatment results following periapical surgery at Taipei Chang Gung Memorial Hospital. From August 1984 to November 1990, 101 periapical surgery treatments were performed on 82 patients. A total of 40 patients with 47 teeth were reexamined more than one year after they had received periapical surgery. The observation period varied from 1 to 6 years. According to radiographic and clinical criteria, the treatment results were considered successful in 61.8% of the teeth, doubtful in 19.1%, and unsuccessful in 19.1%. Clinical signs and symptoms were present in 21.3% of the teeth, occurring significantly more after in teeth demonstrating radiographically unsatisfactory healing.