J Korean Acad Prosthodont.
1999 Aug;37(4):416-424.
A STUDY ON THE STAIN RESISTANCE OF DENTAL CERAMICS FOR ALL CERAMIC CROWN
Abstract
- Simulation of naturally appearing enamel in fixed prosthodontics could be achieved with all ceramics. The purpose of this study was to investigate the stain resistance of 4 different all ceramics materials (In-ceram, IPS Empress, Celay, Vintage). Forty specimens were prepared using manifacture's instruction and the samples were divided into two groups. The specimens for one group were glazing and those for other group wee ground to remove the glazing layer. All specimens were immersed in methylene-blue for 24hours. The color values for each specimen was measured with colorimeter (Mode Tc-6Fx, Tokyo Denshoku Co.) prior to and after immersion in methylene-blue. The following conclusions were drawn from this study. 1. The stain resistance of glazing ceramics was higher than that of unglazing ceramics. 2. The changes of E* and L* values were revealed in Vintage and unglazing Celay. 3. The changes of a* values were revealed in unglazing vintage, Celay, In-cream. 4. The changes of b* value were revealed in Vintage, IPS Empress and unglazing Celay.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Fabrication of a metal-ceramic crown to fit an existing partial removable dental prosthesis using ceramic pressed to metal technique: a clinical report
- Comparison of fracture strength between hybrid-ceramic crown and metal-ceramic crown
- An alternative method to convert fractured metal ceramic surveyed crown into a complete contour zirconia surveyed crown using CAD-CAM technology under anticancer treatments: a clinical report
- PHYSICAL PROPERTIES OF THE REUSED IPS EMPRESS CERAMIC PART III. STUDY ON THE STAIN RESISTANCE
- Color Comparison Of Various Post Systems With Empress 2 Crowns
