PMID: 15348384Sep 7, 2004Paper

Effect of casting method on castability of titanium and dental alloys

Journal of Materials Science. Materials in Medicine
I WatanabeT Okabe

Abstract

Titanium, once considered to be difficult to cast because of its relatively high melting point (1670 +/- 50 degrees C) and strong chemical affinity, can now be acceptably cast using newly developed casting apparatus. The objectives of this study were to examine the castability of commercially pure (CP) titanium using an ultra high-speed centrifugal casting machine and a pressure difference-type casting unit and to compare the castability of titanium with that of conventional dental casting alloys. To determine castability, two types of patterns were used: a mesh pattern of 22 x 24 mm cut polyether thread sieve, and a saucer pattern (24 mm diameter) perforated to create four T-shaped ends. The casting equipment significantly affected the mold filling of both patterns (p < 0.001). The castability indices obtained from both patterns of CP titanium cast in the centrifugal casting machine were significantly (p < 0.05) better than the indices of the castings produced in the pressure-difference casting unit. The radiographs of the saucer pattern cast in the centrifugal casting machine showed some pores that were fewer and smaller in size than the pores found in castings made in the pressure-difference unit. When the ultra high-speed c...Continue Reading

Citations

Aug 19, 2006·Dental Materials Journal·Setsuo SaitohMasayuki Taira
May 31, 2019·Journal of Prosthodontic Research·Hiroyasu KoizumiTakayuki Yoneyama
Nov 19, 2010·Journal of Applied Oral Science : Revista FOB·Renata Cristina Silveira RodriguesRicardo Faria Ribeiro
Jun 8, 2013·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Russell Wang, Gerhard Welsch
Aug 21, 2010·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Anelise R F PieraliniGelson Luis Adabo

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