A. 11.5-12.5×10-6/°C
B. 10.5-11.5×10-6/°C
C. 13.5-14.5×10-6/°C
D. 16.5-17.5×10-6/°C
Related Mcqs:
- Coefficient of thermal expansion of metal-ceramic alloys is________________?
A. Same as porcelain
B. More than porcelain
C. Less than porcelain
D. More than or equal to porcelain but not less - Which one of the following restorative materials is having coefficient of thermal expansion close to that of tooth enamel and dentin ?
A. Microfilled composite resins
B. Pure gold
C. Silver amalgam
D. Type II Glass ionomer cement - Coefficient of thermal expansion of which of following is most similar to that of tooth ?
A. Gold inlay
B. Acrylic resin
C. Silicate cement
D. Gold foil - Coefficienty of thermal expansion of tooth enamel is closest to_______________?
A. Slicate cement
B. Composite
C. GIC
D. Polycarboxylate - Co-efficient of thermal expansion is highest for_____________?
A. Amalgam
B. Silicate cement
C. Gold alloy
D. Acrylic resin - The castability of chromium-cobait base metal alloys when compared to gold based noble metal alloys is_______________?
A. More
B. Less
C. Equal
D. Depends on the alloy type - The pattern for the metallic framework of a removable partial denture is fabricated from________________?
A. Inlay wax type-II
B. Boxing wax
C. Modelling wax
D. Casting wax - A highly polished surface on a metallic dental restoration aids considerably in the prevention of the____________?
A. Dimensional change
B. Thermal conductivity
C. Warpage
D. Tarnish and corrosion - Who was the first person to introduce cast inlay restoration into dentistry ?
A. William H Taggart
B. Buonocore
C. G.V. Black
D. Bowen - Which of the following will produce the most rigid restoration for framework of same dimension ?
A. Wrought alloy
B. Palladium alloys
C. Cobalt-chrome alloys
D. Partial denture casting gold in hardened condition
