Dentures are one of the most popular treatment options for people who have more than one missing tooth. However, as with most dental appliances, dentures don’t last forever. If you have had your current dentures for a while, you may be wondering if it is time to consider a replacement. The goal of this guide is to help you determine whether you need new dentures, as well as two prepare for the process. Reasons to Consider New Dentures Below are five reasons to consider asking your dentist if it is time to get a new set of dentures. 1.