A. Thoroughness of condensation
B. Rapidity of firing
C. High firing temperature
D. All of the above
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Related Mcqs:
- For porcelain fused to metal crown, the porcelain should have ______________?
- A. High fusion expansion B. High fusion temperature C. Linear coefficient of thermal expansion less than that of metal D. Linear coefficient of thermal expansion more than that of metal...
- Porosity in porcelain at condensation stage depends on_________________?
- A. Shape and size of particle B. Uniform distribution of particle size C. Number of particles D. None of the above...
- To prevent porosity in dental porcelain it should be backed________________?
- A. Boric oxide B. In vacuum C. For long period D. Under pressure...
- In processing methyl methacrylate, the resin may show porosity if the flask is placed too soon porosity most likely occur_____________?
- A. Throughout the denture B. Near the borders C. In the thickest part D. On the denture surface...
- Sub surface porosity can be decreased by_______________?
- A. Decreasing the sprue length B. Decreasing the sprue thickness C. Increasing the melting temperature D. Increasing the mould temperature...
- Porcelain denture teeth________________?
- A. Have a higher coefficient of thermal expansion than acrylic teeth: B. Have a lower abrasion resistance than enamel C. Should be used where the inter dental clearance is small D. Have a higher abrasion resistance than gold...
- Phenomenon in which porcelain appears different under varying light condition is______________?
- A. Translucency B. Refractive optics C. Metamerism D. Opacification...
- Quartz is Dental porcelain is______________?
- A. Strengthener B. Binder C. Pigment D. Crack minimzer...
- Stage recognized in the firing of dental porcelain given below. Which of state is not correct ?
- A. Cold stage bisque B. Low bisque C. Medium bisque D. High bisque...
- Porcelain is best fired__________________?
- A. In open air B. Under air compression C. When several layer are fired simultaneously D. Under minimum pressure...
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