title: The Influence of Low-Level Laser on Osseointegration Around Machined and Sandblasted Acid-Etched Implants: A Removal Torque and Histomorphometric Analyses.
abstract: Evaluation of the influence of laser application on osseointegration around implants with different surface characteristics is limited. This study aims to evaluate the influence of low-level lasers on the early stages of osseointegration. Ninety-six external hex implants (3.75 mm × 5.0 mm) were placed in 24 rabbits-one machined and one sandblasted acid-etched per tibia. The rabbits were later divided into the laser group, which received a total dose of 24 J/cm(2) of gallium-aluminum-arsenide laser over 15 days, and a control group. At 16 and 30 days after surgery, removal torque and histomorphometric analyses were performed. No statistical differences in removal torque or histomorphometric analyses were verified between laser and control groups regardless of implant surface (P > .05). Time was the only variable presenting significant differences between measurements (P < .05). Low-level laser had no significant short-term effect on bone-to-implant contact and removal torque values regardless of implant surface characteristics.
authors.affiliation: 1  Department of Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Eduardo Rolim
authors.initials: ER
authors.lastname: Teixeira
authors.affiliation: 2  Private Practice, Porto Alegre, Brazil.
authors.forename: Marco Antônio Rambo Osório
authors.initials: MA
authors.lastname: Torres
authors.affiliation: 1  Department of Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Kleber Ricardo Monteiro
authors.initials: KR
authors.lastname: Meyer
authors.affiliation: 3  Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Sabrina Rebollo
authors.initials: SR
authors.lastname: Zani
authors.affiliation: 1  Department of Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Rosemary Sadami Arai
authors.initials: RS
authors.lastname: Shinkai
authors.affiliation: 1  Department of Prosthodontics, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil.
authors.forename: Márcio Lima
authors.initials: ML
authors.lastname: Grossi
mesh_terms: D000818:Animals; D015921:Dental Implants; D017267:Dental Prosthesis Design; D016348:Osseointegration; D011817:Rabbits; D013499:Surface Properties; D013977:Tibia; D014025:Titanium; D019415:Torque
chemical_list: D015921:Dental Implants; D014025:Titanium
keywords: histological analysis; implant surface; low-level laser; osseointegration; removal torque