We are looking for oral compatible, adhesive systems (GRAS safe for oral cavity) to fix PMMA dentures to mucosa surfaces of the gum (oral cavity). We will consider polymer systems, preferentially a cross linked polymer system, however it must be zinc-free. The adhesive must be compatible with saliva, be superior to existing marketed products, have good sensory characteristics for the mouth (acceptable taste, texture, minimal oozing etc). It must have a good denture hold profile for the 12 hour day (verses existing marketed products) and subsequent ease of release in the evening. We are not looking for gantrez based solutions or two-phase adhesives systems. Any solutions must provide better hold than products currently on the market.