Coefficienty of thermal expansion of tooth enamel is closest to_______________?

Related Mcqs:

1. 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

2. 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

3. Ratio of diameter of enamel rods in the DEJ to the enamel surface is______________?

   A. 1:4
   B. 1:1
   C. 1:2
   D. 2:1

4. Temporary structures in enamel organ are (before enamel formation) ?

   A. Enamel knot
   B. Enamel cord
   C. Both A and B
   D. Enamel Cuticle

5. Smooth surface caries is characterized by spread of caries in enamel and dentin as cones. These alignment in enamel and dentin is____________?

   A. Base to base
   B. Apex to base
   C. Apex to apex
   D. None of the above

6. Once the enamel formation is complete, the tooth will erupt after approximately______________?

   A. One year
   B. Two years
   C. Three years
   D. Four years

7. Interwining of the enamel rods at the cusp timps and the incisal edges of a tooth is called______________?

   A. Enamel spindles
   B. Gnarled enamel
   C. Incremental lies of woven
   D. Incremental lines of retzius

8. The last primary tooth to be replaced by a permanent tooth is usually the_____________?

   A. Maxillary second molar
   B. Mandibular second molar
   C. Maxillary canine
   D. Mandibular canine

9. A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous___________?

   A. Maxillary central incisor
   B. Mandibular lateral incisor
   C. Maxillary lateral incisor
   D. Maxillary canine

10. An asymptomatic tooth has deep has deep caries on occlusal surface. Radiograph shows radiopaque mass at apex of the tooth: this mass is most likely to be:____________?

    A. Cementoma
    B. Condensing Osteitis
    C. Chronic apical periodontitis
    D. Acute apical periodontitis