Question 254 · LDEK · Composites

In order to reduce polymerization shrinkage one can use:

1) „soft start” polymerization technique;
2) high-intensity light-curing technique;
3) bonding system dedicated to the composite;
4) thin layer of a flowable composite as a liner;
5) no thicker than 2 mm layers of conventional composite;
6) 2-5 mm thick layers of conventional composite;
7) no thicker than 6 mm layers of conventional composite.
The correct answer is:

A. 2,3,4,5.
B. 1,3,4,5.
C. 2,4,7.
D. 1,3,4,6.
E. 2,3,4,6.

Hint

Favour measures that delay the gel point, buffer stress or reduce the volume cured at once; avoid anything that speeds curing or thickens increments.

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In order to reduce polymerization shrinkage one can use:

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