Biomedical Ti-Mo Alloys with Surface Machined and Modified by Laser Beam: Biomechanical, Histological, and Histometric Analysis in Rabbits
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Data
2013-06-01
Autores
Oliveira, Nilson T.C. [UNESP]
Guastaldi, Fernando P.S. [UNESP]
Perrotti, Vittoria
Hochuli-Vieira, Eduardo [UNESP]
Guastaldi, Antonio C. [UNESP]
Piattelli, Adriano
Iezzi, Giovanna
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Resumo
Purpose: In vivo bone response was assessed by removal torque, hystological and histometrical analysis on a recently developed biomedical Ti-15Mo alloy, after surface modification by laser beam irradiation, installed in the tibia of rabbits. Materials and Methods: A total of 32 wide cylindrical Ti-15Mo dental implants were obtained (10mm × 3.75mm). The implants were divided into two groups: 1) control samples (Machined surface - MS) and 2) implants with their surface modified by Laser beam-irradiation (Test samples - LS). Six implants of each surface were used for removal torque test and 10 of each surface for histological and histometrical analysis. The implants were placed in the tibial metaphyses of rabbits. Results: Average removal torque was 51.5Ncm to MS and >90Ncm to LS. Bone-to-implant-contact percentage was significantly higher for LS implants both in the cortical and marrow regions. Conclusions: The present study demonstrated that laser treated Ti-15Mo alloys are promising materials for biomedical application. © 2011 Wiley Periodicals, Inc.
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Bone histomorphometry, Laser beam surface modification, Removal torque, Ti-Mo alloys, Titanium alloys, Wettability
Como citar
Clinical Implant Dentistry and Related Research, v. 15, n. 3, p. 427-437, 2013.