Dentures are made of acrylic which wears out over time. Hundreds of thousands of chewing cycles will wear out the biting surfaces of the teeth, and flatten out the back teeth. This in turn may wear out the front teeth and makes them much shorter. Also, acrylic stains and becomes brittle over time.
Dentures may need replacing due to poor fit. Poor suction that needs adhesive to secure your dentures may be aggravating. Denture relines may be necessary over time to make them fit better. Studies have shown that the supporting bony structures underneath dentures resorb over time causing dentures to fit less securely over time. A prosthodontist is an expert at fabrication of dentures. Impression technique is paramount in making dentures that fit as well as your anatomy allows. We are not satisfied until you are pleased with your final result.