European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
September 2009
Print ISSN:
0965-7452
Vol:
17
Issue:
3

Effects of Storage Media on Physical Properties of Selected Tooth Coloured Restorative Materials

Abstract - It is known that storage media can affect the physical properties of some restorative dental materials. The purpose of this laboratory study was to investigate the possible effects of storage media on physical properties of a conventional glass-ionomer, a resin modified glass ionomer and a compomer. Specimens of the restorative materials in the study (FujiII LC, FujiIX and Dyract EXTRA) were prepared. The specimens were stored in either water or artificial saliva with or without exposure to Listerine. The compressive and diametral tensile strength and Vickers hardness of these materials were tested at 24 hours, 1 week, 4 weeks and 12 weeks. Compressive and diametral tensile strength for FujiII LC and Fuji IX had increased at 12 weeks. A decrease was observed for Dyract EXTRA in the same period. No significant differences were observed between the storage media (P>0.01). Vickers hardness values fluctuated during the testing period, with a pattern being consistent for each material. Storage of materials investigated for the period in this study resulted in superior compressive and diametral tensile strength for Fuji II LC and FujiIX. The opposite was true for Dyract EXTRA. Effects of time were found to be more pronounced than the media (P<0.01).

KEY WORDS: Storage media; Tooth-coloured restorative materials; Compressive strength; diametral tensile strength, Vickers hardness

Article Price
£15.00
Institution Article Price
£
Page Start
116
Page End
120
Authors
Leili Sadaghiani, Gabriel Adusei, Jeremy Rees

Articles from this issue

  • Title
  • Pg. Start
  • Pg. End

  1. Mechanical Effects of Implant-tooth Rigid Connection by a Fixed Partial Denture: A 3d Finite Element Analysis.
  2. 98
  3. 104

  1. Effect of Ferrule Placement on the Fracture Strength of Cyclically Loaded Bovine Teeth Restored with Cemented Cast Post-Cores and Crowns
  2. 105
  3. 110

  1. Holographic Stress Analysis in a Distal Extension Removable Partial Denture
  2. 111
  3. 115

  1. Effects of Storage Media on Physical Properties of Selected Tooth Coloured Restorative Materials
  2. 116
  3. 120

  1. Evaluation of the Antimicrobial Activity and Dimensional Alterations of Alginate Impression Disinfectants
  2. 121
  3. 125

  1. Three-Dimensional Finite Element Analysis of the Effect of Incomplete Seating of Cemented Fixed Dental Prostheses
  2. 126
  3. 133

  1. Bonding Auto-Polymerising Acrylic Resin to Acrylic Denture Teeth
  2. 134
  3. 136

  1. BSSPD 56th Annual Conference
  2. 137
  3. 141