title: Third-molar extraction with ultrasound bone surgery: a case-control study.
abstract: OBJECTIVE
  The aim of this case-control study was to evaluate the postoperative period and healing between 2 surgical methods (traditional and ultrasound bone surgery) that are used for mandibular third-molar extraction.
  
  
  METHODS
  Fifteen patients with impaction of both of the lower third molars and indications for their extractions were used in this study. Bilateral-mandibular third-molar extractions were performed at the same surgical time: traditional surgery with burrs was used on 1 side (control site), and ultrasound surgery was used on the other side (test [T] site). After surgery, the patients were examined at 7 and 14 days and at 1 and 3 months to evaluate tissue healing. The following was assessed at every follow-up: pain, trismus, swelling, and alveolar bone level.
  
  
  RESULTS
  The study included 15 patients, and 30 mandibular third-molar extractions were performed. We found only 1 postoperative complication: 1 patient had alveolitis in the control site. Complete recoveries without any complications were reported in all of the patients at the T sites.
  
  
  CONCLUSIONS
  Complete recoveries without any complication were reported in all patients at the T sites. The only disadvantage of the piezoelectric technique was the length of operation time, which was increased by approximately 8 minutes; however, this effect was offset by reducing the morbidity.
  
  
  CONCLUSIONS
  Our preliminary study showed that Piezosurgery is an excellent tool for reducing the risk of complications and improving the postoperative period.
authors.affiliation: From the *SIOM Oral Surgery and Implantology Center, Turin, Italy; †Trainer Oral Surgery Unit, Dentistry Section, Department of Clinical Physiopathology, University of Turin, Turin, Italy; ‡Assistant Oral Surgery Unit, University of Eastern Piedmont, Novara, Italy; and §Professor of Stomatology and Oral Surgery, Department of Health Sciences "A. Avogadro," University of Eastern Piedmont, Novara, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Mozzati
authors.forename: Giorgia
authors.initials: G
authors.lastname: Gallesio
authors.forename: Andrea
authors.initials: A
authors.lastname: Russo
authors.forename: Giorgio
authors.initials: G
authors.lastname: Staiti
authors.forename: Carmen
authors.initials: C
authors.lastname: Mortellaro
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D004368:Dry Socket / Q000209:etiology; D004487:Edema / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery*; D008964:Molar, Third / Q000601:surgery*; D061646:Operative Time; D010149:Postoperative Pain / Q000209:etiology; D011183:Postoperative Complications; D014081:Tooth Extraction / Q000009:adverse effects; D014095:Tooth, Impacted / Q000601:surgery*; D014313:Trismus / Q000209:etiology; D059708:Ultrasonic Surgical Procedures / Q000379:methods*; D014945:Wound Healing / Q000502:physiology; D055815:Young Adult