European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
March 2015
Print ISSN:
0965-7452
Vol:
23
Issue:
1

Effect of Luting Cement Space on the Strain Response of Gold Crowns Under Static Compressive Loading

doi: 10.1922/EJPRD_1318Asbia06

Effect of Luting Cement Space on the Strain Response of Gold Crowns Under Static Compressive Loading
Asbia S, Ibbetson R, Reuben B

Keywords
Restorative dentistry Adhesives Mechanical testing Luting cement thickness Zinc phosphate ctement uni-axial static loading

Abstract
The aim the work was to investigate the effect of varying degrees of luting cement thickness on the strain of the cemented gold alloy crowns under compression. Five dies with their corresponding crowns were fabricated using a lost wax technique. Three gold crowns for each die were fabricated under the control of specific die spacer layers to provide a space of 40μm (10 layers of die-spacer thickness) and 80μm (20 layers of die-spacer thickness). The crowns were subsequently cemented using zinc phosphate cement. The crowns were subjected to gradual static compressive loading between 10N to 250N (Newton) and the strain measured simultaneously. The results were statistically analysed using Independent t-test for the different die-spacer thickness at the 95% confidence interval (p=0.05). It was found that a significant relationship in the three thicknesses. It was concluded that the absence of die-spacer significantly reduced strain response, whereas a very little change in the strain recorded as the die spacer layers has increased. Clinically, decreasing the number of die-spacer layers is advantageous as it provides a lower strain response under static compressive loading that would improve the longevity of the cemented full crowns inside the patient’s mouth.

Article Price
£15.00
Institution Article Price
£
Page Start
3
Page End
7
Authors
Asbia S, Ibbetson R, Reuben B

Articles from this issue

  • Title
  • Pg. Start
  • Pg. End

  1. Editorial
  2. 2
  3. 2

  1. Effect of Luting Cement Space on the Strain Response of Gold Crowns Under Static Compressive Loading
  2. 3
  3. 7

  1. Hardness Changes of Tissue Conditioners in Various Storage Media: An in Vitro Study
  2. 9
  3. 15

  1. An Investigation into the Accuracy of Two Currently Available Dental Impression Materials in the Construction of Cobalt-Chromium Frameworks for Removable Partial Dentures
  2. 16
  3. 28

  1. The Influence of Sonic and Ultrasonic Vibration on the Shear Bond Strength of a Selected Resin Luting Cement
  2. 29
  3. 32

  1. The Bond Strength of Resin Bonded Bridge Retainers to Abutments of Differing Proportions of Enamel and Composite
  2. 33
  3. 39

  1. The Windowed Removable Partial Denture: A Treatment Option for Patients with Lone-Standing Teeth
  2. 40
  3. 45

  1. Too Much To Swallow? A Case Report Of An Ingested Denture
  2. 46
  3. 48