For patients taking liquid iron, what is a recommended practice to prevent teeth staining?

Drinking liquid iron with a straw is indeed the recommended practice to prevent teeth staining. When liquid iron is ingested, it can leave dark stains on the teeth due to its composition. Using a straw allows the iron solution to bypass the teeth, minimizing direct contact and thus reducing the likelihood of staining.

This method is particularly beneficial for those who need to take liquid iron supplements over an extended period, as it helps maintain dental aesthetics. Additionally, it promotes better oral hygiene by limiting exposure of the teeth to staining substances.

Other strategies, such as diluting or mixing the liquid with other beverages, may not provide the same level of protection for the teeth, and using it as a mouthwash is not advisable because that could increase the contact time on the teeth, leading to more staining. Therefore, using a straw is an effective and practical approach to mitigate potential tooth discoloration.