Comparative in vivo study of commercially pure Ti implants with surfaces modified by laser with and without silicate deposition: Biomechanical and scanning electron microscopy analysis
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2013-01-01
Autores
Souza, Francisley A. [UNESP]
Queiroz, Thallita P. [UNESP]
Guastaldi, Antônio C. [UNESP]
Garcia-Júnior, Idelmo R. [UNESP]
Magro-Filho, Osvaldo [UNESP]
Nishioka, Renato S. [UNESP]
Sisti, Karin E.
Sonoda, Celso K. [UNESP]
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Resumo
The purpose of this study was to evaluate commercially pure titanium implant surfaces modified by laser beam (LS) and LS associated with sodium silicate (SS) deposition, and compare them with machined surface (MS) and dual acid-etching surfaces (AS) modified. Topographic characterization was performed by scanning electron microscopy-X-ray energy dispersive spectroscopy (SEM-EDX), and by mean roughness measurement before surgery. Thirty rabbits received 60 implants in their right and left tibias. One implant of each surface in each tibia. The implants were removed by reverse torque for vivo biomechanical analysis at 30, 60, and 90 days postoperative. In addition, the surface of the implants removed at 30 days postoperative was analyzed by SEM-EDX. The topographic characterization showed differences between the analyzed surfaces, and the mean roughness values of LS and SS were statistically higher than AS and MS. At 30 days, values removal torque LS and SS groups showed a statistically significant difference (p < 0.05) when compared with MS and AS. At 60 days, groups LS and SS showed statistically significant difference (p < 0.05) when compared with MS. At 90 days, only group SS presented statistically higher (p < 0.05) in comparison with MS. The authors can conclude that physical chemistry properties and topographical of LS and SS implants increases bone-implant interaction and provides higher degree of osseointegration when compared with MS and AS. © 2012 Wiley Periodicals, Inc.
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biomechanics, bone remodeling, dental implants, SEM techniques, surface modification, Acid-etching, Biomechanical analysis, Bone remodeling, Commercially Pure titaniums, In-vivo, Machined surface, Mean roughness, Osseointegration, Removal torque, Scanning electrons, SEM-EDX, Sodium silicate, Statistically significant difference, Bone, Dental prostheses, Energy dispersive spectroscopy, Physical chemistry, Scanning electron microscopy, Silicates, Surface treatment, Titanium, Biomechanics, antibiotic agent, pentabiotic, pyrazolone derivative, silicate sodium, sodium derivative, sodium dipyrone, titanium, unclassified drug, analytical parameters, animal experiment, animal model, controlled study, implantation, in vivo study, male, nonhuman, physical chemistry, rabbit, roughness, scanning electron microscopy, spectroscopy, surface property, tibia, torque, x ray energy dispersive spectroscopy, Animals, Lasers, Male, Microscopy, Electron, Scanning, Prostheses and Implants, Rabbits
Como citar
Journal of Biomedical Materials Research - Part B Applied Biomaterials, v. 101 B, n. 1, p. 76-84, 2013.