What is the purpose of lining the sink with a washcloth during denture care?

The purpose of lining the sink with a washcloth during denture care is to prevent the dentures from breaking if they are dropped. Dentures are often fragile and made from materials that can easily crack or shatter upon impact with a hard surface. By placing a washcloth in the sink, it creates a soft cushion that absorbs the shock of a fall, reducing the risk of damage to the dentures. This practice is essential for ensuring the longevity of the dentures and maintaining their functionality.

While the other options suggest different potential benefits, such as aesthetics, cleanliness, or absorbing spills, none address the primary concern of protecting the dentures themselves, which is why lining the sink with a washcloth is considered a best practice in denture care.