Cobalt-Chromium-Titanium Alloy for Removable Partial Dentures

Iwama, Celia Yurie; Preston, Jack D.
July 1997
International Journal of Prosthodontics;Jul/Aug1997, Vol. 10 Issue 4, p309
Academic Journal
Pure elemental titanium was alloyed with cobalt and chromium in dilutions of 4%, 5%, and 6% to evaluate the suitability of the resulting alloy for removable partial denture frameworks. The physical properties of the Co-Cr-Ti alloy were compared to the properties of a commercial pure titanium and Vitallium. Clasp replicas were cast in Co-Cr-Ti and Vitallium and subjected to cyclic deflection. Representative specimens from the fatigue failure tests were then evaluated using scanning electron microscopy and analyzed for elemental content. The 5% titanium dilution of cobalt-chromium proved to have the best physical properties and was used for comparison with the pure titanium and Vitallium. The Co-Cr-5% Ti had significantly better physical properties than pure titanium and a greater flexure fatigue limit than the Vitallium alloy.


Related Articles

  • Microstructure of Dental Amalgams Containing High and Low Copper Contents. MALHOTRA, MANOHAR L.; ASGAR, KAMAL // Journal of Dental Research;Dec1977, Vol. 56 Issue 12, p1481 

    Microstructure of commercial dental alloys and their amalgams were studied primarily by x-ray diffraction, optical metallography, scanning electron microscopy, and x-ray energy dispersive spectroscopy. X-ray diffraction revealed more phases than normally reported in these materials. Presence of...

  • Tensile adhesion of composite resin cements to etched alloy and enamel. Zardiackas, L. D.; Caughman, W. F.; Comer, R. W.; Lentz, D. L. // Quintessence International;Aug1986, Vol. 17 Issue 8, p483 

    The article focuses on research regarding the use of the acid bonding technique to bind a metal framework to tooth enamel. A study was conducted to examine the strength of the tensile bond between composite resin luting agents and alloys of different composition. The fracture surfaces on the...

  • Influence of the supersaturating temperature on the microstructure and hardness of Ti24Nb4Zr8Sn alloy. DĄBROWSKI, Robert; CIOS, Grzegorz; KRAWCZYK, Janusz // Key Engineering Materials;2016, Vol. 687, p55 

    In the present paper the influence of the supersaturation of the Ti24Nb4Zr8Sn alloy on microstructure and hardness was described. The microstructure analysis was performed by means of the light microscope. At the supersaturation temperature of 950°C examinations were performed by means of the...

  • An Evaluation of Beta Titanium Alloys for Use in Orthodontic Appliances. JON GOLDBERG; BURSTONE, CHARLES J. // Journal of Dental Research;Feb1979, Vol. 58 Issue 2, p593 

    A beta titanium alloy was evaluated for use in orthodontic appliances. Standard mechanical tests and a specially designed spring test were used. Two particular thermo-mechanical treatments resulted in titanium springs with 1.8 times the extension of comparable stainless steel springs, and a 2.2...

  • Wear behaviour of New CoCrMoTi Dental Alloys. Ghiban, Nicolae; Ghiban, Alexandru; Ghiban, Brândușa; Borțun, Cristina Maria // Solid State Phenomena;11/2/2014, Vol. 216, p222 

    A new composition of a dental cobalt alloy was proposed from the system CoCrMoTi, which are proposed for dental applications. Three content of titanium were used in commercial matrix of CoCrMo alloy in order to reveal the wear behavior of these alloys. The results showed that titanium alloying...

  • Setting Changes of Amalgam Surfaces Observed by a Scanning Electron Microscopic Motion Picture. TAKATSU, TOSHIO; FUSAYAMA, TAKAO // Journal of Dental Research;Sep1974, Vol. 53 Issue 5, p1175 

    The changes of the phases on a setting amalgam surface were observed by a scanning electron microscope and recorded on a videotape. The image reproduced on a TV monitor was converted into a 16-mm motion picture with a low speed movie camera. The movie showed the dynamic process of the change of...

  • Temporary crowns.  // British Dental Journal;12/20/2003, Vol. 195 Issue 12, p719 

    Presents a wide selection of temporary crown materials offered by Henry Schein Inc. Features of the Polycarbonate Temporary Crowns; Types of Stainless Steel Temporary Crowns; Details of the Aluminum Temporary Crowns.

  • A Variation in Minor Connector Design for Partial Dentures. Radford, David R.; Walter, John D. // International Journal of Prosthodontics;Jan/Feb1993, Vol. 6 Issue 1, p50 

    Whenever possible, the minor connector of a removable partial denture is located in the interdental embrasure. Recent evidence suggests that gingival attachment loss is more probable on the proximal aspect, thus minor connectors located in embrasures cover susceptible sites. A rationale and...

  • Alpha/Beta Heat Treatment of a Titanium Alloy with a Nonuniform Microstructure. Semiatin, S. L.; Lehner, T. M.; Miller, J. D.; Doherty, R. D.; Furrer, D. U. // Metallurgical & Materials Transactions. Part A;Apr2007, Vol. 38 Issue 4, p910 

    The effect of alpha/beta solution temperature and cooling rate on the evolution of micro- structure during the heat treatment of Ti-6A1-2Sn-4Zr-2Mo-0.1 Si (Ti6242Si) with a partially spheroidized starting microstructure of equiaxed + remnant lamellar alpha was established. Experiments comprising...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics