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Improving the HA deposition process on Ti-based advanced alloy through sandblasting

G. ZEGAN1, R. CIMPOEȘU2,* , M. AGOP2, I. ŞTIRBU2, D. L. CHICET2, B. ISTRATE3, A. ALEXANDRU2, B. ANTON PRISACARIU4

Affiliation

  1. Department of Surgery, Faculty of Dental Medicine, “Gr. T. Popa” University of Medicine and Pharmacy, University str. no. 16, 700115, Iaşi, Romania
  2. Faculty of Materials Science and Engineering, “Gheorghe Asachi” Technical University of Iasi, Prof. dr. docent Dimitrie Mangeron Rd., No. 59A, 700050, Iasi, Romania
  3. Faculty of Mechanics, “Gheorghe Asachi” Technical University of Iasi, Prof. dr. docent Dimitrie Mangeron Rd., No. 59A, 700050, Iasi, Romania
  4. “Gr. T. Popa” University of Medicine and Pharmacy, University str. no. 16, 700115, Iaşi, Romania

Abstract

To realize satisfactory fixation of hydroxyapatite (HA) and bio-functionality of metallic mini-implants, a few mechanical surface modifications, such as threaded surface through sandblasting, have been produced to accelerate the tissue formation and partial bone growth. Usually the mechanical operation purpose is to clean the material surface by the contaminants and to process the surface in order to increase the effective surface area. In addition, we propose a deposition of HA layer on the metallic surface. The chemical and physical properties of the layers were determined using a micro-indenter equipment (type CETR-UMT, Bruker), S.E.M (Scanning Electron Microscope, type VegaTescan LMHII), E.D.A.X (Energy Dispersive X-ray analysis, type Bruker) and XRD (X-ray diffraction, type X’Pert) analyze instruments. The results present variation of surface modifications based on the sand blasted process parameters and in some cases the original surface area can be roughly doubled under mild sandblasting operation, the partial contamination of the surface with the sand particles and variation of homogeneity of thin HA layer..

Keywords

Biocompatible alloy, Sandblast, Hydroxyapatite.

Citation

G. ZEGAN, R. CIMPOEȘU, M. AGOP, I. ŞTIRBU, D. L. CHICET, B. ISTRATE, A. ALEXANDRU, B. ANTON PRISACARIU, Improving the HA deposition process on Ti-based advanced alloy through sandblasting, Optoelectronics and Advanced Materials - Rapid Communications, 10, 3-4, March-April 2016, pp.279-284 (2016).

Submitted at: Dec. 9, 2015

Accepted at: April 5, 2016