Which impression material is typically used for a reline?

In dental practices, relining involves using a material that can adapt to the existing surface of a dental prosthesis, such as a denture, to improve its fit and comfort over time. The correct choice for a reline is often a material that allows for better adjustment and can bond effectively to the existing denture material.

Zinc oxide and eugenol paste is a suitable choice because it provides good dimensional stability and is relatively easy to manipulate. It can create a strong bond to the denture base and provides the necessary properties for an effective reline. This material is also known for its soothing properties when in contact with oral mucosa, which can enhance patient comfort during the relining process.

Other materials like alginate, while useful for making initial impressions due to its ease of use and quick setting time, do not provide the same level of stability and durability needed for a long-lasting reline. Similarly, polyvinyl siloxane, while excellent for precise impressions in restorative applications, may not be the most practical choice for relining due to its cost and potential challenges in bonding with the existing materials of the denture.