Effects of investment type and casting system on permeability and castability of CP titanium

The Journal of Prosthetic Dentistry
Fazal RezaYukimichi Tamaki

Abstract

Several factors, such as casting systems and investment properties, are important to obtain a sound titanium casting. Although various casting systems and investments for titanium are commercially available, their effects on CP titanium castability are not clear. The purpose of this study was to determine permeability of investments and to evaluate the effects of investment type and casting system on titanium castability. Three investments for titanium (experimental gypsum-bonded investment, Selevest CB, and Speed Titan) and 4 titanium casting systems (Cyclarc, Ti-Cascom, Vulcan T, and Ticast Super R) were used. Permeability was measured using a flow meter and argon gas at 0.1, 0.2, and 0.3 MPa. Castability was calculated as the percentage of reproduced holes compared to a perforated wax pattern. Data for castability and permeability were analyzed separately with 2-way ANOVA and the Tukey HSD test (alpha=.05). The ANOVA for permeability and castability showed significant interaction (P<.001 and P=.004, respectively). Differences in permeability among the 3 investments increased with a higher gas pressure. Permeability of the experimental investment at each pressure level was significantly greater than that of the other investme...Continue Reading

References

Feb 24, 2001·Dental Materials Journal·K WatanabeM Kobayashi
Apr 18, 2003·The Journal of the American Dental Association
Dec 1, 2005·The Journal of Prosthetic Dentistry·Dimitris EliopoulosTriantafillos Papadopoulos
Jan 21, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Pedro César Garcia OliveiraSicknan Soares Rocha
Aug 11, 2009·Dental Materials Journal·Fazal RezaTakashi Miyazaki

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Citations

Sep 9, 2017·Dental Materials Journal·Evaggelia PapiaPer Vult VON Steyern
Jun 22, 2018·Journal of Oral Science·Hiroyasu KoizumiTakayuki Yoneyama
May 31, 2019·Journal of Prosthodontic Research·Hiroyasu KoizumiTakayuki Yoneyama
Nov 13, 2019·Journal of Prosthodontic Research·Yoshimasa TakeuchiHideyuki Imai
Jul 7, 2012·The Journal of Prosthetic Dentistry·Anelise Rodolfo Ferreira PieraliniGelson Luis Adabo

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