Dental All of the following are true about polymerization shrinkage of composite resin except: A The more surface area of bonded structure causes LESS shrinkage compare to surface area of unbounded structure restoration. B Class-V composite restoration causes. Contraction more than gold restoration C Etching and priming reduces shrinkages D One third (1/3rd) of the enamel involves causes more shrinkage 💡 Explanation All of the following are true about polymerization shrinkage of composite resin except: ✓ Correct Answer: A. The more surface area of bonded structure causes LESS shrinkage compare to surface area of unbounded structure restoration.