Dentures and partial dentures are a good option If you’ve lost some or all of your natural teeth, replacing missing teeth will benefit your appearance and your health. Dentures are removable appliances that can replace missing teeth and help restore your smile.

Dentures may even improve the look of your smile. When you lose all of your teeth, facial muscles can sag, making you look older. Dentures can help fill out the appearance of your face and profile. Dentures can also be made to closely resemble natural teeth so that the appearance does not change much. The longer they are worn, the more comfortable they will feel.

Types of dentures:

• Conventional (full denture). This full removable denture is made and placed in your mouth after the remaining teeth are removed and tissues have healed, which may take several months.
• Immediate. This removable denture is inserted on the same day that the remaining teeth are removed. Your dentist will take measurements and make models of your jaw during a preliminary visit. You don’t have to be without teeth during the healing period, but may need to have the denture relined or remade after your jaw has healed.
• Partial Dentures Partial dentures can be used for patients who have a few teeth remaining. Partial dentures can remain in place or be removable. If they are removable, these dentures will remain in place usually by a metal frame and clasps.
• Overdenture. Sometimes some of your teeth can be saved to preserve your jawbone and provide stability and support for the denture. An overdenture fits over a small number of remaining natural teeth after they have been prepared by your dentist. Implants can serve the same function, too.

More information can be found from the ADA here