title: Prospective study of periapically infected teeth treated with periapical surgery including ultrasonic preparation and retrograde intermediate restorative material root-end fillings.
abstract: OBJECTIVE
  The aim of this prospective study was to evaluate the current method of periapical surgery at the Maxillofacial Unit, Halmstad Hospital, which included ultrasonic root-end preparation and the use of intermediate restorative material as a root-end filling material.
  
  
  METHODS
  Fifty-five consecutive patients with a total of 56 treated teeth, within the close vicinity of the hospital, were included in the study during a period of 10 months in 2002. Teeth with advanced periodontal bone loss or presence of root fractures were excluded from the study.
  
  
  RESULTS
  All teeth but 1 were followed up after 1 year (12-19 months). Radiological evaluation (complete or incomplete healing) and clinical examination showed an 80% success rate. Twenty percent of the patients were stated as failures (uncertain healing and unsatisfactory healing). The success rate was highest among incisors (100%) and lowest among molars and premolars (78% and 69%, respectively).
  
  
  CONCLUSIONS
  Compared with other studies, these findings seemed to be a bit inferior regarding success rate. However, our study population was not selected for the study purpose but rather represented the true clinical variety taken care of in our practice.
authors: Maxillofacial Unit, Halmstad Hospital, Halmstad, Sweden. dan-ake.walivaara@lthalland.se
authors: Dan-Ake
authors: DA
authors: Wälivaara
authors: Peter
authors: P
authors: Abrahamsson
authors: Sten
authors: S
authors: Isaksson
authors: John-Eric
authors: JE
authors: Blomqvist
authors: Kjell-Arne
authors: KA
authors: Sämfors
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008768:Methylmethacrylates / Q000627:therapeutic use; D010486:Periapical Tissue / Q000601:surgery*; D011446:Prospective Studies; D011671:Pulpitis / Q000601:surgery*; D012086:Reoperation / Q000379:methods; D012184:Retrograde Obturation / Q000379:methods*; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D018915:Root Canal Preparation / Q000379:methods*; D019227:Tooth Apex / Q000601:surgery*; D016896:Treatment Outcome; D014465:Ultrasonics; D015035:Zinc Oxide-Eugenol Cement / Q000627:therapeutic use
chemical_list: D008768:Methylmethacrylates; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C031667:IRM cement