A denture is a removable dental appliance and a replacement for missing teeth and surrounding tissue.  They are made to closely resemble your natural teeth and may even enhance your smile. There are two types of dentures – complete and partial dentures.  Complete dentures are used when all of the teeth are missing, while partial dentures are used when some natural teeth remain.  A Partial denture not only fills in the spaces created by missing teeth; it prevents other teeth from shifting. A complete denture can be either “conventional” or “immediate.”  A conventional type is made after the teeth have been removed and the gum tissue has healed (usually takes 4 to 6 weeks).  During this time, the patient will go without teeth.  Immediate dentures are made in advance and immediately placed after the teeth are removed, thus preventing the patient from having to be without teeth during the healing process.  Once the tissues shrink and heal, adjustments will have to be made. Dentures are very durable appliances and will last many years but may have to be remade, repaired, or readjusted due to normal wear.