title: Healing at implant sites prepared conventionally or by means of Sonosurgery ®. An experimental study in dogs.
abstract: OBJECTIVE
  To compare peri-implant tissue healing at implants installed in sites prepared with conventional drills or a sonic device.
  
  
  METHODS
  In six Beagle dogs, the mandibular premolars and first molars were extracted bilaterally. After 3 months, full-thickness muco-periosteal flaps were elevated and recipient sites were prepared in both sides of the mandible. In the right side (control), the osteotomies were prepared using conventional drills, while, at the left side (test), a sonic device (Sonosurgery(®)) was used. Two implants were installed in each side of the mandible. After 8 weeks of non-submerged healing, biopsies were harvested and ground sections prepared for histological evaluation.
  
  
  RESULTS
  The time consumed for the osteotomies at the test was more than double compared to the conventional control sites. No statistically significant differences were found for any of the histological variables evaluated for hard and soft tissue dimensions. Although not statistically significant, slightly higher mineralized bone-to-implant contact was found at the test (65.4%) compared to the control (58.1) sites.
  
  
  CONCLUSIONS
  Similar healing characteristics in osseointegration and marginal hard tissue remodeling resulted at implants installed into osteotomies prepared with conventional drills or with the sonic instrument (Sonosurgery(®)).
authors: Faculty of Dentistry, University of Medical Science, La Habana, Cuba.
authors: Paolo
authors: P
authors: Viganò
authors: Faculty of Dentistry, University of Medical Science, La Habana, Cuba.|ARDEC, Ariminum Odontologica, Rimini, Italy.|Faculdade de Odontologia de Araçatuba, UNESP - Univ Estadual Paulista, São Paulo, Brasil.|The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, China.
authors: Daniele
authors: D
authors: Botticelli
authors: Faculty of Dentistry, São Paulo University USP, Ribeirão Preto São Paulo, Brazil.
authors: Luiz A
authors: LA
authors: Salata
authors: Faculty of Dentistry, University of Medical Science, La Habana, Cuba.
authors: Michael T
authors: MT
authors: Schweikert
authors: Faculty of Dentistry, University of Medical Science, La Habana, Cuba.
authors: Joaquin
authors: J
authors: Urbizo Velez
authors: The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong, China.|University of Zurich, Zurich, Switzerland.
authors: Niklaus P
authors: NP
authors: Lang
mesh_terms: D000818:Animals; D001706:Biopsy; D003758:Dental Implantation, Endosseous / Q000379:methods*; D004285:Dogs; D004867:Equipment Design; D008334:Mandible / Q000601:surgery; D010027:Osteotomy / Q000295:instrumentation / Q000379:methods*; D013524:Surgical Flaps; D014081:Tooth Extraction; D059708:Ultrasonic Surgical Procedures / Q000295:instrumentation / Q000379:methods*; D014945:Wound Healing / Q000502:physiology*
keywords: animal study; bed preparation; bone healing; dental implants; implant dentistry; osteotomy; soft tissue; sonosurgery