Journal of Prosthetic Dentistry
Volume 92, Issue 4 , Pages 377-381 , October 2004

Porosity of cpTi casting with four different casting machines

  • Dimitris Eliopoulos, DDS

      Affiliations

    • Postgraduate Student.
    • ,
  • Spiros Zinelis, PhD

      Affiliations

    • Metallurgical Engineer.
    • ,
  • Triantafillos Papadopoulos, DDS, PhD

      Affiliations

    • Associate Professor.
    • Corresponding Author InformationReprint requests to: Dr Triantafillos Papadopoulos, Department of Biomaterials, Dental School, University of Athens, Thivon 2, 115 27 Athens, Greece, Fax: 3102107240633

References 

  1. King AW, Chai J, Lautenschlager E, Gilbert J. The mechanical properties of milled and cast titanium for ceramic veneering. Int J Prosthodont. 1994;7:532–537
  2. Okabe T, Hero H. The use of titanium in dentistry. Cells and Materials. 1995;5:211–230
  3. Papadopoulos TR, Zinelis S, Vardavoulias M. A metallurgical study of the contamination zone at the surface of dental Ti castings, due to the phosphate-bonded investment material: the protection efficacy of a ceramic coating. J Mater Sc. 1999;34:3639–3646
  4. Papadopoulos T, Tsetsekou A, Eliades G. Effect of aluminum oxide sandblasting on cast commercially pure titanium surfaces. Eur J Prosthodont Restor Dent. 1999;7:15–21
  5. Chai TI, Stein RS. Porosity and accuracy of multiple-unit titanium castings. J Prosthet Dent. 1995;73:534–541
  6. Zinelis S. Effect of pressure of helium, argon, krypton and xenon on the porosity, microstructure and mechanical properties of commercially pure titanium castings. J Prosthet Dent. 2000;84:575–582
  7. Hero H, Syverud M, Waarli M. Mold filling and porosity in castings of titanium. Dent Mater. 1993;9:15–18
  8. Baltag I, Watanabe K, Kusakari H, Miyakawa O. Internal porosity of cast titanium removable partial dentures: Influence of sprue direction on porosity in circumferential clasps of a clinical framework design. J Prosthet Dent. 2002;88:151–158
  9. Watanabe I, Watkins JH, Nakajima H, Atsuta M, Okabe T. Effect of pressure difference on the quality of titanium casting. J Dent Res. 1997;76:773–779
  10. Bourcier R, Koss D, Smelser R, Richmond O. The influence of porosity on the deformation and fracture of alloys. Acta Metallurgica. 1986;34:2443–2453
  11. Wu M, Schadlich-Stubenrauch J, Augthun M, Sahm PR, Spiekermann H. Computer-aided prediction and control of shrinkage porosity in titanium dental castings. Dent Mater. 1998;14:321–328
  12. Wu M, Augthun M, Schadlich-Stubenrauch J, Spiekermann H, Sahm PR. Numerical simulation of porosity free titanium dental castings. Eur J Oral Sci. 1999;107:307–315
  13. Chan D, Guillory V, Blackman R, Chung K. The effects of sprue design on the roughness and porosity of titanium castings. J Prosthet Dent. 1997;78:400–404
  14. Watanabe K, Okawa S, Kanatani M, Nakano S, Miyakawa O, Kobayashi M. New partition technique for two-chamber pressure casting unit for titanium. Dent Mater J. 2000;19:307–316
  15. Watanabe K, Miyakawa O, Takada Y, Okuno O, Okabe T. Casting behavior of titanium alloys in a centrifugal casting machine. Biomaterials. 2003;24:1737–1743
  16. Watanabe K, Okawa S, Miyakawa O, Nakano S, Shiokawa N, Kobayashi M. Molten titanium flow in a mesh cavity by the flow visualization technique. Dent Mater J. 1991;10:128–137
  17. Ying X, Cheung L. Image file formats for digital microscopy. Eur Microsc Analysis. 1999;57:9–12
  18. Sjogren G, Andersson M, Bergman M. Laser welding of titanium in dentistry. Acta Odontol Scand. 1988;46:247–253
  19. Muller W, Manthey H, Lange K, Gundlach H, Plank T. Electrochemical characterization of laser welding tracks. Analytic Bioanalytic Chem. 1998;361:662–666
  20. Hamanaka H, Doi H, Yoneyama T, Okuno O. Dental casting of titanium and Ni-Ti alloys by a new casting machine. J Dent Res. 1989;68:1529–1533

 Part of this study was presented at the 81st General Session of the IADR, June 2003, Goteborg, Sweden.

PII: S0022-3913(04)00459-7

doi: 10.1016/j.prosdent.2004.07.006

Journal of Prosthetic Dentistry
Volume 92, Issue 4 , Pages 377-381 , October 2004

Article Tools

* Image Usage & Resolution