Effect of porous titanium coating thickness on in vitro osteoblast phenotype expression

  • Antonio Canabarro | info@ariesdue.it DDS, MSc, PhD Department of Periodontology, School of Dentistry of Rio de Janeiro State University, RJ, Brazil.
  • Grasiele E. Crippa DDS, MSc, PhD, Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, SP, Brazil.
  • Mariana U. Shirozaki DDS, Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, SP, Brazil.
  • Eduardo M. Sampaio PE, MSc, PhD, Adhesion and Adherence Laboratory, Department of Mechanical Engineering of Rio de Janeiro State University, RJ, Brazil.
  • Louis-Philippe Lefebvre PE, PhD, National Research Council Canada, Industrial Materials Institute, Boucherville, Canada.
  • Paulo T. De Oliveira DDS, MSc, PhD, Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Brazil.
  • Marcio M. Beloti DDS, MSc, PhD, Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Brazil.
  • Adalberto L. Rosa DDS, MSc, PhD, Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Italy.

Abstract

Aim This study aimed at determining the effect of different thickness of porous titanium (Ti) coating, 0.5, 1.0 and 1.5 mm thick (PC-0.5, PC-1.0 and PC-1.5), on osteoblast phenotype expression. Materials and methods Dense Ti discs coated with 0.5, 1.0 and 1.5 mm of porous Ti (PC-0.5, PC-1.0 and PC-1.5, respectively) were fabricated by powder metallurgy process with pore size typically between 50 and 400 μm and porosity of 60%. Osteoblastic cells obtained from human alveolar bone were cultured on dense Ti (D-Ti) and PC-Ti discs for periods of up to 17 days. Results Cultures grown on PC-Ti exhibited higher cell proliferation rate than on D-Ti. By comparing PC-Ti groups, it was observed statistical differences on culture grown only at day 10 (PC- 0.5<PC-1.0 and PC-1.5). Cells cultured on PC-1.5 presented the highest gene expression of type I collagen (COL), alkaline phosphatase (ALP), and osteocalcin (OC). The calcium content was significantly greater on PC-1.5 compared to all other groups. Conclusion These results indicate that PC-Ti favored osteoblastic cell proliferation. In addition, they increased gene expression of osteoblastic markers and higher content of mineralized matrix was observed on the thicker PC-Ti coating (PC-1.5). Therefore, further in vivo evaluations should be done in order to investigate whether this structure should be considered for clinical implant applications.

Dimensions

Altmetric

PlumX Metrics

Downloads

Download data is not yet available.
Published
2011-03-30
Info
Issue
Section
Articles
Keywords:
Bone, Cell culture, Cell-material interactions, Porous coated, Titanium
##article.stats##
  • Abstract views: 290

  • PDF: 257
How to Cite
Canabarro, A., Crippa, G. E., Shirozaki, M. U., Sampaio, E. M., Lefebvre, L.-P., De Oliveira, P. T., Beloti, M. M., & Rosa, A. L. (2011). Effect of porous titanium coating thickness on in vitro osteoblast phenotype expression. Journal of Osseointegration, 3(1), 17-23. https://doi.org/10.23805/jo.2011.03.01.03