Journal of Prosthetic Dentistry
Volume 92, Issue 1 , Pages 35-38 , July 2004

Alterations of surface hardness with gypsum die hardeners

  • Paul E. Harris, DDS

      Affiliations

    • Private Practice, Logan, Utah USA
    • ,
  • Scott Hoyer, DDS

      Affiliations

    • Oral Surgery Resident USA
    • ,
  • Terry J. Lindquist, DDS, MS

      Affiliations

    • Associate Professor, Prosthodontic Department USA
    • ,
  • Clark M. Stanford, DDS, PhD

      Affiliations

    • Centennial Fund Professor, Director of Clinical Research, Dental Clinical Research Center (Dows Institute for Dental Research) and Department of Prosthodontics, University of Iowa USA
    • Corresponding Author InformationReprint requests to: Dr Clark M. Stanford University of Iowa/College of Dentistry N447 Dental Science Building Iowa City, IA 52242 Fax: (319) 335-8895

References 

  1. ADA Council on Scientific Affairs. ANSI/ADA Specification No.25 (2000), an adoption of ISO Standard 6873: 1998 for Dental Gypsum Products. Available at http://www.ada.org/prof/resources/positions/standards/denmat.asp. Accessed March 28, 2004.
  2. Craig R, Craig RG, Powers JM. Restorative dental materials. 11th ed.. St. Louis: Elsevier; 2001; p. 373, 392-404
  3. Rosenstiel SF, Land MF, Fijimoto J. Contemporary fixed prosthodontics. 3rd ed.. St. Louis: Elsevier; 2000; p. 433
  4. Skinner EW, Gordon CC. Some experiments on the surface hardness of dental stones. J Prosthet Dent. 1956;6:94–100
  5. Sanad ME, Combe EC, Grant AA. The effect of model sealant solutions on the properties of gypsum. J Dent. 1980;8:152–157
  6. Sanad ME, Combe EC, Grant AA. Hardening of model and die materials by an epoxy resin. J Dent. 1980;8:158–162
  7. Peyton FA, Liebold JP, Ridgley GV. Surface hardness, compressive strength, and abrasion resistance of indirect die stones. J Prosthet Dent. 1952;2:381–389
  8. Fukui H, Lacy AM, Jendresen MD. Effectiveness of hardening films on die stone. J Prosthet Dent. 1980;44:57–63
  9. Bajada SB, Makinson OF. The effect of some surface treatments to dental modelling stones. Aust Dent J. 1974;19:118–121
  10. Fan PL, Powers JM, Reid BC. Surface mechanical properties of stone, resin, and metal dies. J Am Dent Assoc. 1981;103:408–411
  11. Lindquist TJ, Stanford CM, Knox E. Influence of surface hardener on gypsum abrasion resistance and water sorption. J Prosthet Dent. 2003;90:441–446
  12. Kaiser DA, Nicholls JI. A study of distortion and surface hardness of improved artificial stone casts. J Prosthet Dent. 1976;36:373–381
  13. Mahler DB. Hardness and flow properties of gypsum materials. J Prosthet Dent. 1951;1:188–195
  14. Naylor WP, Munoz CA, Goodacre CJ, Swartz ML, Moore BK. The effect of surface treatment on the Knoop hardness of Dicor. Int J Prosthodont. 1991;4:147–151
  15. Duke P, Moore BK, Haug SP, Andres CJ. Study of the physical properties of type IV gypsum, resin-containing, and epoxy die materials. J Prosthet Dent. 2000;83:466–473

PII: S0022-3913(04)00204-5

doi: 10.1016/j.prosdent.2004.04.002

Journal of Prosthetic Dentistry
Volume 92, Issue 1 , Pages 35-38 , July 2004

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