What is the range of polymerization shrinkage for dental resins?

The range of polymerization shrinkage for dental resins is indeed around 2.5% to 6%. This shrinkage occurs as the resin transitions from a liquid state to a solid state during the curing process. When dental resins are polymerized, the molecules align and compact, leading to a reduction in volume.

Understanding the significance of polymerization shrinkage is vital in dentistry as it can affect the integrity and longevity of dental restorations. Too much shrinkage can lead to gaps between the restoration and the tooth structure, increasing the risk of secondary caries or sensitivity. This is why resins with a shrinkage range of 2.5% to 6% are often preferred, as they balance the properties needed for functional and aesthetic dental applications while minimizing potential issues associated with higher shrinkage rates.

The other ranges listed are outside the scope of typical shrinkage values for dental resins, which clarifies why they are not suitable options in this context.