Biomedical Ti-Mo Alloys with Surface Machined and Modified by Laser Beam: Biomechanical, Histological, and Histometric Analysis in Rabbits

Autor(es)

Oliveira, Nilson T. C. ^{[1, 2]} ; Guastaldi, Fernando P. S. ^[2] ; Perrotti, Vittoria ^[1] ; Hochuli-Vieira, Eduardo ^[3] ; Guastaldi, Antonio C. ^[2] ; Piattelli, Adriano ^[1] ; Iezzi, Giovanna ^[1]

Afiliação do(s) autor(es)

^[1] Univ G dAnnunzio, Sch Dent, Dept Stomatol, Chieti - Italy

^[2] Univ Estadual Paulista, Biomat Grp, IQ, UNESP, BR-14901800 Araraquara, SP - Brazil

^[3] Univ Estadual Paulista, Dept Diagnost & Cirurgia, Fac Odontol Araraquara, UNESP, BR-14901800 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH; v. 15, n. 3, p. 427-437, JUN 2013.
• Citações Web of Science: 8

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 x 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. (AU)

• Processo FAPESP: 08/02073-7 - Estudo in vivo empregando-se implantes de Ti - Mo com superfície usinada e com superfície modificada por feixe de laser. Análises biomecânica, histológica e imunoistoquímica.
• Beneficiário: Fernando Pozzi Semeghini Guastaldi
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 05/04050-6 - Desenvolvimento de ligas metalicas ti-mo aplicadas como biomaterial para implantes.
• Beneficiário: Antonio Carlos Guastaldi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 04/11751-8 - Desenvolvimento de ligas metálicas Ti-Mo aplicadas como biomaterial para implantes
• Beneficiário: Nilson Tadeu Camarinho de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 08/04867-0 - Estudos histológicos e histomorfométricos sobre implantes da liga Ti-15Mo, depois de 12 semanas de implantação em coelhos e estudos in vitro de cultura celular sobre discos da mesma liga, com e sem modi..
• Beneficiário: Nilson Tadeu Camarinho de Oliveira
• Modalidade de apoio: Bolsas no Exterior - Pesquisa