title: Laser-Treated Titanium Implants: An In Vivo Histomorphometric and Biomechanical Analysis.
abstract: OBJECTIVE
  The aim of the present histological and biomechanical analysis was to compare, in vivo, the strength and quality of osseointegration between a laser-treated implant surface and a standard machined surface.
  
  
  METHODS
  Customized titanium implants, having 2 different surfaces, were used. Implants were longitudinally split in the 2 surfaces: one side was laser treated and the opposite one had a machined surface. Eight implants were inserted in the iliac crest of 2 sheep: 4 with a split laser and machined surfaces, 2 with a completely laser-treated surface, and 2 with fully machined surfaces. The animals were killed 8 weeks after the placement of implants. The histomorphometric and biomechanical parameters calculated for each surface were the bone-implant contact (%BIC) and the reverse torque value (RTV) RESULTS:: The RTV of the laser-treated implants were about 3-fold higher than that of the machined implants. The histomorphometric results showed a significant difference of %BIC around 30% between the laser surfaces compared to the machined ones.
  
  
  CONCLUSIONS
  The present study showed that laser surface treatment induces better osteointegration than machined surface. The laser-treated surface seems to be able to increase the osseointegration amount in respect to the machined implants.
authors.affiliation: *Scientific Director, Biomaterial Clinical and Histological Research Association, Pescara, Italy. †Biomaterial Clinical and Histological Research Association, Pescara, Italy. ‡Private Practice, Campobasso, Italy. §Private Practice, Roma, Italy. ¶Professor of Oral Surgery, Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University Chieti-Pescara, Italy.
authors.forename: Paolo
authors.initials: P
authors.lastname: Trisi
authors.forename: Marco
authors.initials: M
authors.lastname: Berardini
authors.forename: Marco
authors.initials: M
authors.lastname: Colagiovanni
authors.forename: Davide
authors.initials: D
authors.lastname: Berardi
authors.forename: Giorgio
authors.initials: G
authors.lastname: Perfetti
mesh_terms: D000818:Animals; D000069343:Bone-Implant Interface / Q000473:pathology / Q000502:physiology*; D007085:Ilium / Q000473:pathology / Q000601:surgery; D007834:Lasers; D016348:Osseointegration / Q000502:physiology; D019736:Prostheses and Implants; D012756:Sheep; D014025:Titanium
chemical_list: D014025:Titanium