Which of the following statements about polymerization shrinkage in composite materials is INCORRECT?

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Polymerization shrinkage increases when the bonded surface area is smaller than the unbonded surface area.Polymerization shrinkage tends to be higher when the composite is placed within enamel margins.Applying acid etching and priming reduces the extent of polymerization shrinkage.Polymerization shrinkage may lead to microleakage at the restoration margins.

Explanation

Polymerization shrinkage is generally more pronounced when the bonded surface area is larger than the unbonded surface area, not the other way around. Shrinkage is indeed greater within enamel margins, and acid etching along with priming can help minimize shrinkage effects. Additionally, shrinkage can cause microleakage, compromising the restoration's seal.