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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Osteointegrative and microgeometric comparison between micro-blasted and alumina blasting/acid etching on grade II and V titanium alloys (Ti-6Al-4V)

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Autor(es):
Granato, Rodrigo [1] ; Bonfante, Estevam A. [2] ; Castellano, Arthur [3] ; Khan, Rehan [4] ; Jimbo, Ryo [5] ; Marin, Charles [1] ; Morsi, Sara [4] ; Witek, Lukasz [4] ; Coelho, Paulo G. [4, 6, 7]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] UNIGRANRIO Univ, Div Surg & Oral Implants, Postgrad Program Dent, Duque De Caxias, RJ - Brazil
[2] Univ Sao Paulo, Bauru Sch Dent, Dept Prosthodont & Periodontol, Bauru, SP - Brazil
[3] Univ Fed Santa Catarina, Dept Dent, OMPS Resident, Div Oral & Maxillofacial Surg, Florianopolis, SC - Brazil
[4] NYU, Dept Biomat & Biomimet, New York, NY - USA
[5] Malmo Univ, Fac Odontol, Dept Oral & Maxillofacial Surg & Oral Med, Malmo - Sweden
[6] NYU, Langone Hlth Sch Med, Hansjorg Wyss Dept Plast Surg, New York, NY - USA
[7] NYU Tandon Sch Engn, Mech & Aerosp Engn, New York, NY - USA
Número total de Afiliações: 7
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS; v. 97, p. 288-295, SEP 2019.
Citações Web of Science: 1
Resumo

This study evaluated the effect of alumina-blasted/acid-etched (AB/AE) or microabrasive blasting (C3-Microblasted) surface treatment on the osseointegration of commercially-pure Ti (grade II) and Ti-6Al-4V alloy (grade V) implants compared to as-machined surfaces. Surface characterization was performed by scanning electron microscopy and optical interferometry (IFM) to determine roughness parameters (Sa and Sq, n = 3 per group). One-hundred forty-four implants were placed in the radii of 12 beagle dogs, for histological (n = 72, bone-to-implant contact - BIC and bone-area-fraction occupancy - BAFO) and torque to interface failure test at 3 and 6 weeks (n = 72). SEM and IFM revealed a significant increase in surface texture for AB/AE and C3-Microblasted surfaces compared to machined surface, regardless of titanium substrate. Torque-to-interface failure test showed significant increase in values from as-machined to AB/AE and to C3-Microblasted. Considering time in vivo, alloy grade, and surface treatment, the C3-microblasted presented higher mean BIC values relative to AB/AE and machined surfaces for both alloy types. BAFO levels were significantly higher for both textured surfaces groups relative to the machined group at 3 weeks, but differences were not significant between the three surfaces for each alloy type at 6 weeks. Surface treatment resulted in roughness that improved osseointegration in Grade II and V titanium substrates. (AU)

Processo FAPESP: 16/18818-8 - EMU concedido no processo 2012/19078-7: ElectroPuls E3000 Linear-Torsion All-Electric dynamic test instrument package
Beneficiário:Estevam Augusto Bonfante
Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
Processo FAPESP: 12/19078-7 - Desenvolvimento e processamento de compósito de Al2O3-ZrO2 para próteses monolíticas CAD/CAM: efeito do envelhecimento na resistência à flexão biaxial
Beneficiário:Estevam Augusto Bonfante
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores