Even with proper care of your mouth and dentures, it’s normal for changes in underlying bone/gums and regular wear and tear to make your dentures not fit as well. Ill-fitting dentures can trap food and plaque, and can lead to irritation, tissue overgrowth, ulcers, and fungal infections. That’s why it’s important to get your dentures relined every 2 to 4 years. Relining dentures adds material to the inner plate that sits against your gums, making your dentures fit more comfortably. If it feels like your dentures aren’t fitting as well as they used to, contact your denturist!