When you receive dentures, they should fit your mouth like gloves. They should only rely on suction to stay in place. However, it’s normal for dentures to slip over time if they aren’t maintained regularly. If you’re relying on an adhesive to hold your dentures in place, they may need to be relined. Although you’ll find many DIY methods online, it’s better to visit your dentist to ensure a precise fit, and here’s why.