European Journal of Prosthodontics and Restorative Dentistry
- Cover Date:
- June 2013
- Print ISSN:
- 0965-7452
- Vol:
- 21
- Issue:
- 2
Influence of Dentine Thickness and Repeated Firing on the Colour of IPS e.max Press
doi:10.1922/EJPRD_1116ALDwairi07
Abstract - The purpose of this study was to determine the possible effects of the veneering porcelain thickness, and of repeated firing on the final shade of IPS e.max Press. Sixty disc-shaped IPS e.max Press specimens were fabricated and divided into 6 groups according to shade (A2, C2) and porcelain thickness (0.5, 1.0 and 1.5 mm). Repeated firing (3, 5 and 7 firings) was performed and the colour differences (∆E) were determined. With increased thickness, A2 specimens showed a significant reduction in L* values and increase in a* and b* values while C2 specimens showed reductions in L*a*b values (P < 0.01). We would conclude that clinically, the preparation should provide at least 1 mm of thickness for the aesthetic potential of this dentine porcelain to be realized.
KEY WORDS: Firing, Shade, Colour difference, Porcelain
- Article Price
- £15.00
- Institution Article Price
- £
- Page Start
- 88
- Page End
- 94
- Authors
- Z.N. AL-Dwairi, K.Q. AL-Hamad, M.I. Khasawneh, E. Lynch
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- Title
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- Pg. End
- The Quality of Impressions for Crowns and Bridges: An Assessment of the Work Received at Three Commercial Dental Laboratories. Assessing the Quality of the Impressions of Prepared Teeth.
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- Comparison of the Flexural Strength of Two Dual Cure Adhesive Resin Cements Under Oral Simulated Conditions: An In-Vitro Study
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- The Effect of Denture Design and Fixatives on the Retention of Mandibular Complete Dentures Tested on a Novel In-vitro Edentulous Model
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- Radiotherapy and the Oral Environment – The Effects of Radiotherapy on the Hard and Soft Tissues of the Mouth and its Management
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