European Journal of Prosthodontics and Restorative Dentistry

cover art

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

A Long Term Study on Residual Monomer Release from Denture Materials

Abstract - The aim of this long term study was to investigate the release of residual monomer from different denture materials, throughout a 38 months time period after curing and storage in water. Specimens made of four denture base resins (three heat polymerizing, one auto polymerizing) and one hard liner were subjected to residual monomer determination using gas liquid chromatography. The residual monomer estimation carried out on three occasions: one week, 12 months and 38 months after curing. The data obtained were analyzed using two-way Anova followed by Scheffe’s test for post hoc multiple comparisons at α =0.05. Heat polymerized denture base acrylic resins showed less residual monomer than auto polymerized ones (p<0.001) and released no statistically significant amounts of monomer (p>0.05), during the 38 months storage time period. Auto polymerized denture materials, which had higher residual monomer content, released statistically significant amounts of monomer (p<0.001) during the first twelve months storage, but not during the last twenty six months period (p>0.05). Heat polymerized denture base acrylic resins released insignificant amounts of residual monomer during the storage period; whereas both the auto polymerized denture base resin and the hard liner released significant amounts of residual monomer during the initial storage time period but insignificant ones during the remainder of the storage period.

KEY WORDS: Complete dentures, denture resins, residual monomer, biocombatibility

Article Price
£15.00
Institution Article Price
£
Page Start
81
Page End
84
Authors
Alcibiades Zissis, Stavros Yannikakis, Gregory Polyzois, Alan Harrison

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