There are two different of denture configurations:
Complete: When all of your teeth are missing, complete dentures will replace the entire row – upper, lower, or both.
Partial: A partial is used when only some of the teeth are missing. A gum-colored or pink base is used to hold the replacement teeth, sometimes with metal framework, and the remaining teeth help hold the partial in place.
When teeth are lost, the jaw bone begins to deteriorate and absorb back into the body. When a tooth has been lost for an entire year, the bone will lose approximately 25% of the mass. It progresses on from there. This bone loss causes the facial muscles to sag. Dentures will help stimulate the bone to prevent bone loss and facial drooping.
Depending on your individual situation, there are three options for your dentures:
Conventional: After all teeth have been removed, a fully removable set of dentures are manufactured specifically for your mouth, but these cannot be placed until the mouth is completely healed.
Immediate: These are made ahead of removing any remaining teeth. They may need to be adjusted after healing, but you won’t have to go without teeth while you are healing.
Overdenture: If some of your teeth can be saved, it provides better stability for your jaw bone and less bone loss. The remaining teeth can be prepared and an overdenture fitted over the top of those prepared teeth. This is also how implants function.