About polymerization shrinkage of composite all are true, except______________?
Correct answer: A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
- A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
- B. Polymerization shrinkage is high if within the enamel margins
- C. Acid etching and priming will decrease polymerization shrinkage
- D. Microleakage can occur because of polymerization shrinkageTry Prep Courses
Explanation
Polymerization shrinkage causes greater stress when the bonded surface area is large relative to the free, unbonded surface area, not when the bonded area is smaller. Acid etching improves bonding and reduces marginal separation, while shrinkage can still produce microleakage.
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