European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
June 2008
Print ISSN:
0965-7452
Vol:
16
Issue:
2

Effect of Surfactant on Surface Hardness of Dental Stone and Investment Casts Produced from Polyvinyl Siloxane Duplicating Materials

Abstract - Polyvinylsiloxane duplicating materials are typically treated with a topical surfactant before pouring dental models, but the use of topical surfactants in the dental laboratory may affect the surface hardness of the resultant models. The effect of two different topical surfactants on surface hardness of two dental stones (FujiRock and Dentstone) and one phosphate bonded investment material (CroformWB) produced from polyvinyl siloxane (PVS) dental laboratory duplicating moulds was investigated. Topical surfactants affected the surface hardness of FujiRock, Dentstone and Croform WB investment material. Surface hardness of FujiRock increased with Wax-Mate surfactant. However, surface hardness of Croform WB investment material decreased with both topical surfactants.

KEYWORDS: Laboratory techniques, Hardness, Dental stone, Dental investment material, Duplication.

Article Price
£15.00
Institution Article Price
£
Page Start
77
Page End
80
Authors
Attalah Al-Johani, Robert K.F. Clark, Andrzej S. Juszczyk, David R. Radford

Articles from this issue

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  1. Colonization and Deterioration of Soft Denture Lining Materials in vivo
  2. 50
  3. 55

  1. A Survey on Orthodontic-Restorative Dental Services in a NHS Hospital
  2. 56
  3. 60

  1. Retentive Characteristics of Ankylos® SynCone Conical Crown System Over Long-term Use in vitro
  2. 61
  3. 66

  1. The Use of Implants at an Increased Vertical Dimension of Occlusion to Correct a Scissor Bite: A Case Report
  2. 67
  3. 72

  1. Effect of a Laboratory Surfactant on Compatibility of Type IV Dental Stones with Addition-Cured Silicone Impression Materials.
  2. 73
  3. 76

  1. Effect of Surfactant on Surface Hardness of Dental Stone and Investment Casts Produced from Polyvinyl Siloxane Duplicating Materials
  2. 77
  3. 80

  1. A Long Term Study on Residual Monomer Release from Denture Materials
  2. 81
  3. 84

  1. Shear Bond Strength Between Nickel-chromium and Human Dentine Using a Dual-cure, Self-adhesive Universal Resin Luting Agent
  2. 85
  3. 88

  1. BSSPD 55th Annual Conference
  2. 89
  3. 93

  1. Book Reviews
  2. 94
  3. 95