title: Periradicular surgery of molars: a prospective clinical study with a one-year follow-up.
abstract: OBJECTIVE
  The purpose of this prospective clinical study was to evaluate the outcome of periradicular surgery of molars after one year.
  
  
  METHODS
  The material consisted of 25 molars with 39 roots demonstrating periradicular lesions of endodontic origin. Surgical treatment included root-end resection, root-end preparation with sonic microtips, and root-end filling with Super-EBA cement. At the one-year follow-up examination, healing was evaluated clinically and radiographically. Healing was assigned to three categories: (i) success (ii) improvement, and (iii) failure using well defined criteria.
  
  
  RESULTS
  Eighty-eight per cent of the surgically treated molars showed successful healing. In 8%, the healing was rated as improved and only 4% were failures.
  
  
  CONCLUSIONS
  The outcome of the present study and data of recently published studies show that periradicular surgery may result in a predictable treatment outcome in molars with persistent periradicular lesions.
authors.affiliation: Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Berne, Switzerland. thomas.vonarx@zmk.unibe.ch
authors.forename: T
authors.initials: T
authors.lastname: von Arx
authors.forename: C
authors.initials: C
authors.lastname: Gerber
authors.forename: N
authors.initials: N
authors.lastname: Hardt
mesh_terms: D000328:Adult; D001047:Apicoectomy; D001861:Bone Regeneration; D003788:Dental Pulp Diseases / Q000150:complications / Q000628:therapy; D017220:Dentin-Bonding Agents / Q000627:therapeutic use; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D008963:Molar / Q000000981:diagnostic imaging / Q000601:surgery*; D010483:Periapical Diseases / Q000000981:diagnostic imaging / Q000601:surgery; D011446:Prospective Studies; D011859:Radiography; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D018915:Root Canal Preparation; D014092:Tooth Root / Q000000981:diagnostic imaging / Q000601:surgery*; D016896:Treatment Outcome; D014945:Wound Healing
chemical_list: D017220:Dentin-Bonding Agents; D012387:Root Canal Filling Materials; C084074:Super EBA