There are many options all of which center around being fixed or removable. Removable options include dentures and removable partial dentures A dental implant( to replace a single tooth) is designed to permanently replace missing teeth in a fixed non-removable fashion. A specially designed root formed titanium alloy “screw” is placed within the jawbone to act just like a natural tooth would. It can function and mimic a natural tooth to make a very pleasing smile and tooth replacement. An implant can replace a single tooth, multiple teeth or can support bridges, partials and dentures. By supporting removable options they can make the fit and function multiple times better for chewing and biting efficiency. A denture is needed when you are missing all of your teeth. It is removable and is recommended not to sleep in them due to tissues needing rest from forces applied while chewing. The upper denture can stay in place quite well depending on the amount of bony ridge left over upon tooth extraction or removal. You see, our bone in our jaws has one purpose and that is to hold and support our teeth, once all the teeth are removed the bone starts to atrophy. This atrophy over time is why dentures need to be relined and adjusted on a regular basis. Lower dentures move around quite frequently due to the muscles of the tongue and cheek that have their attachments along where the borders of the dentures sit.
A denture depends on suction to hold it in and can be aided by attaching them to dental implants. By the addition of dental implants, dentures are now very predictable and there is no longer and reason why they should come out and be limited by certain foods. The higher the number of implants supporting a denture the more stable it can become.