title: Periapical surgery of 29 teeth. A comparison of conventional technique, microsaw and ultrasound.
abstract: OBJECTIVE
  A clinical and radiological study is made of the results obtained with different periapical surgical techniques.
  
  
  METHODS
  Twenty-nine single-root teeth from 29 patients with periapical pathology following correct endodontic treatment were divided into three groups: (A) 10 patients in which rotary instruments were used to perform osteotomy, apicoectomy and cavity preparation; (B) 10 patients in which rotary instruments were used to perform osteotomy and apical resection, with ultrasound root-end cavity preparation; and (C) 9 patients in which microsaws were used for osteotomy, and ultrasound for cavity preparation. All teeth were filled with IRM. Clinical and radiological controls were made after 10 days, one and 6 months, and one year.
  
  
  RESULTS
  Clinical success with the absence of symptoms was achieved in 17 cases (58.6%), while in 16 patients (55.2%) the X-ray images showed complete bony regeneration (complete healing). The clinical success rate after one year was 40%, 70% and 66.7% in groups A, B and C, respectively, while complete radiographic healing was recorded in 30%, 60% and 77.8%. There were three failures in group A, two in group C, and none in group B.
  
  
  CONCLUSIONS
  In conclusion, the best results were obtained when ultrasound was used for root-end cavity preparation.
authors.affiliation: Departamento de Esstomatología, Universidad de Granada. Granada. Spain.
authors.forename: Manuel
authors.initials: M
authors.lastname: Vallecillo Capilla
authors.forename: Esther
authors.initials: E
authors.lastname: Muñoz Soto
authors.forename: Candela
authors.initials: C
authors.lastname: Reyes Botella
authors.forename: Estrella
authors.initials: E
authors.lastname: Prados Sáchez
authors.forename: M Victoria
authors.initials: MV
authors.lastname: Olmedo Gaya
mesh_terms: D001047:Apicoectomy / Q000295:instrumentation / Q000379:methods*; D003754:Dental High-Speed Equipment; D005500:Follow-Up Studies; D006801:Humans; D010027:Osteotomy / Q000295:instrumentation* / Q000379:methods; D010483:Periapical Diseases / Q000601:surgery*; D018915:Root Canal Preparation / Q000295:instrumentation* / Q000379:methods; D016896:Treatment Outcome; D014464:Ultrasonic Therapy / Q000379:methods*