title: Healing of osteotomy sites applying either piezosurgery or two conventional saw blades: a pilot study in rabbits.
abstract: OBJECTIVE
  The purpose of this study was to compare bone healing of experimental osteotomies applying either piezosurgery or two different oscillating saw blades in a rabbit model.
  
  
  METHODS
  The 16 rabbits were randomly assigned into four groups to comply with observation periods of one, two, three and five weeks. In all animals, four osteotomy lines were performed on the left and right nasal bone using a conventional saw blade, a novel saw blade and piezosurgery.
  
  
  RESULTS
  All three osteotomy techniques revealed an advanced gap healing starting after one week. The most pronounced new bone formation took place between two and three weeks, whereby piezoelectric surgery revealed a tendency to faster bone formation and remodelling. Yet, there were no significant differences between the three modalities.
  
  
  CONCLUSIONS
  The use of a novel as well as the piezoelectric bone-cutting instrument revealed advanced bone healing with a favourable surgical performance compared to a traditional saw.
authors.affiliation: The University of Hong Kong Faculty of Dentistry, Hong Kong, SAR, China.
authors.forename: Li
authors.initials: L
authors.lastname: Ma
authors.forename: Stefan
authors.initials: S
authors.lastname: Stübinger
authors.forename: Xi Ling
authors.initials: XL
authors.lastname: Liu
authors.forename: Urs A
authors.initials: UA
authors.lastname: Schneider
authors.forename: Niklaus P
authors.initials: NP
authors.lastname: Lang
mesh_terms: D000818:Animals; D001706:Biopsy; D004867:Equipment Design; D023421:Models, Animal; D009295:Nasal Bone / Q000473:pathology / Q000502:physiology / Q000601:surgery*; D009983:Orthopedic Equipment; D010012:Osteogenesis / Q000502:physiology; D010027:Osteotomy / Q000295:instrumentation* / Q000379:methods*; D059745:Piezosurgery / Q000295:instrumentation / Q000379:methods*; D010865:Pilot Projects; D011184:Postoperative Period; D011817:Rabbits; D013525:Surgical Instruments; D013997:Time Factors; D014945:Wound Healing / Q000502:physiology*