No removable prosthesis made for the mouth, is permanent. On average a denture may be expected to last between 5-8 years. Due to naturally occurrence of resorption, the denture-bearing surface of the mouth is constantly changing. Wear and repair of the material, as well as absorption of oral fluids eventually starts breaking down the physical bonding of the acrylic, cause discolouration and also effecting the hygiene of your denture.