A. Glycerin-water solution
B. Cement liquid
C. Alcohol
D. Only water
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 - Porcelain binds to metal in PFM crown by_________________?
A. Metallic bind
B. Transparency
C. Chemical bond
D. B and C - Increased amount of powder in zinc phosphate cement mixture will cause_______________?
A. Decreased strength
B. Decreased film thickness
C. Decreased solubility
D. Increased setting time - In which of the following disorders a circulating antibody directed to intercellular cementing substance of stratified squamous epithelium is observed:_________?
A. Lichen planus
B. Verrucous vulgaris
C. Bullous pemphigoid
D. Pemphigus vulgari - Which of the following is common to both zinc eugenol cement and polycarboxylate cement?
A. Polyacrylic acid is liquid
B. Chemical bond to tooth structure
C. Chelation
D. Substitution o eugenol by EBA to increase strength of cement - The anatomic crown is shorter than the clinical crown of a tooth in which of the following instances___________________?
A. Impaction
B. Gingivitis
C. Occlusal wear
D. Gingival recession - 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 - The first porcelain tooth material was introduced by______________?
A. DeChemant
B. Ash
C. Plateau
D. McClean - Chemical method of strengthening porcelain involves_________________?
A. Exchange of aluminium and sodium ions
B. Exchange of aluminium and potassium ions
C. Exchange of sodium and potassium ions
D. None of the above - Condensation shrinkage of porcelain during firing depends on__________________?
A. Rate of arriving at firing temperature
B. Uniformity of particle size
C. Shape and size of particle
D. Type of investment used
