Question 63 · LDEK · Composites
Indicate the true statements concerning the process of composite polymerization:
1) value of C-factor in class IV restoration is 1;
2) self-cured composites require mixing two components;
3) tertiary amines in self-cured composites give them a light yellow color;
4) polymerization shrinkage depends on the distance between the light source and the composite;
5) polymerization shrinkage may damage the adhesive connection between the tooth and the composite.
The correct answer is:
2) self-cured composites require mixing two components;
3) tertiary amines in self-cured composites give them a light yellow color;
4) polymerization shrinkage depends on the distance between the light source and the composite;
5) polymerization shrinkage may damage the adhesive connection between the tooth and the composite.
The correct answer is:
- A. 1,2,3.
- B. 2,4,5.
- C. 1,4,5.
- D. 2,3,5.
- E. 1,3,5.
Hint
Count bonded versus free surfaces in a Class IV cavity, and separate factors that affect shrinkage from those that affect the degree of cure.
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