Casting Metals in Dentistry: Past - Present - Future

  title={Casting Metals in Dentistry: Past - Present - Future},
  author={Kamal Asgar},
  journal={Advances in Dental Research},
  pages={33 - 43}
  • K. Asgar
  • Published 1 August 1988
  • Materials Science
  • Advances in Dental Research
This article deals mainly with the development of dental casting techniques and formulation of the different groups of alloys used in the fabrication of ceramo-metal restorations. It is recognized that in order for the quality of dental cast restorations to be improved, having alloys with the proper composition is not enough. Biocompatibility, good mechanical and physical properties, longevity of the restoration, compatibility with porcelain, and a simple manipulative technique are as important… 
Zirconia-reinforced dental restorations
  • C. Chen
  • Materials Science, Medicine
  • 2013
The series of studies conducted in this thesis showed that there are several ways to enhance the performance of fixed restorations regarding the application of zirconia, including changing the sintering procedure, so that the physical properties of zIRconia such BFS, density or grain size can also be changed.
A comparison of retention characteristics in prefabricated and custom-cast dental attachments.
  • Chin-Chuan Fu, Yung-tsung Hsu
  • Materials Science, Medicine
    Journal of prosthodontics : official journal of the American College of Prosthodontists
  • 2009
The prefabricated attachments had superior retention than the cast groups over time, and reduced dimension did not reduce the retention when compared to the cast group.
Investment casting for oral cavity applications: peculiarities and problems
The work is aimed at summarizing the properties of the alloys and the investment casting processes used in dentistry, and the actual application environment of the device should be taken into account.
Investment casting process is known to its capability of producing clear net shape, high-dimensional accuracy and intricate design. Consistent research effort has been made by various researchers
Recycling of Materials used in Dentistry with Reference to its Economical and Environmental Aspects
Recycling dental base metal casting alloys, silver amalgam alloy restorations and dental waxes to reduce the cost of the treatment and save natural resources can be saved from getting depleted by conserving the earth resources.
Evaluation of mechanical properties of recasted dental base metal alloys for considering their reusability in dentistry and engineering field
There is no major degradation in the mechanical properties after recycling, and hence, the left over alloys after casting procedures can be reused in dentistry with a condition to satisfy cytotoxicity tests.
Monolithic CAD/CAM restorations – Esthetic Zone Applications
A review of ceramic materials used for rehabilitation of dentition from a single unit to full arch cases to give an insight about optical properties and clinical use of monolithic materials.
Indirect Evaluation of the Marginal Fit of Dental Castings
An accurate marginal fit of a dental casting is one of the goals of restorative dentists. Use of specific indirect techniques facilitates fabrication of the most precise castings. These techniques
On porcelain bonding, oxidation, mechanical properties and high-temperature distortion of high-palladium dental casting alloys /
High-palladium alloys contain more than 75 % Pd and are used for metalceramic restorations and implant-supported prostheses. The purpose of a series of investigations included in this dissertation


The Mechanism of Hygroscopic Expansion in Dental Casting Investments
This technic is based on the observation that some types of investment materials, when placed in water during the setting period, expand three to four times their normal setting expansion and the mechanism of this enlargement, commonly termed "hygroscopic expansion," will be discussed.
Castability of silver-base fixed partial denture alloys.
Study of Porosity and Voids in Dental Gold Castings
  • G. P. Kelly
  • Materials Science
    Journal of dental research
  • 1970
Sprue size, oven burnout temperature, casting temperature of the gold, presence of a vent or heat sink, and type of investment are among the variables that confront the operator in casting.
Effect of investment on casting high-fusing alloys.
Further studies on gold alloys used in fabrication of porcelain-fused-to-metal restorations.
Hardness of the metal substructures was not increased by return of porcelain-coated specimens to a 1,250 F oven for final heat treatment, and hardness values for the alloys were comparable.
Evaluation of alternative alloys to precious ceramic alloys. 1. Mechanical properties.
The nickel-chromium alloys exhibit the best range of mechanical properties for the porcelain-baked-to-metal technique, when considering the three most relevant properties: proof stress, plastic stiffness, and modulus of elasticity.
The Behavior and Measurement of Hygroscopic Expansion of Dental Casting Investment
The general conclusion is that hygroscopic expansion is affected by the method of measurement and test when initial readings are made as soon as possible after mix, and the term "effective" expansion has been applied.
Contact angles of drops of enamels on metals.
A Technique for Characterizing Casting Behavior of Dental Alloys
Test results indicate that the castability evaluation procedure described can be a valuable aid in the laboratory for both selecting and using dental materials for producing cast restorations and for the evaluation of products and techniques during research and development.