Removable Implant Overdenture

An implant overdenture is a removable prosthesis which looks on its surface similar to a complete denture.  As its name implies, the denture-type tooth replacement fits “over” the implants (as pictured at the right), which are used with a connecting bar, or snaps, to stabilize and retain the denture. Most commonly, the number of implants required is two to four (at right). 

Implant overdentures may be designed with individual snap attachments on the implants (Snap Attachment Denture, illustrated below),  Or, the implants may be joined by a bar and retaining clips (Bar Attachment Denture, also below).  The most appropriate attachment system for your individual needs is determined early in treatment, and relates to a variety of conditions in your mouth.  

Removable implant  overdentures may offer advantages compared to a fixed prosthesis:

  • When only two individual implants are used, or when four implants are used and joined with a simple bar-and-clip arrangement, the cost is often less than for a fixed prosthesis.  
  • When used in the upper jaw, overdentures, with their extended flanges, may provide better facial support and phonetics than fixed prostheses.
  • Overdentures can be removed and cleaned, in contrast to a fixed prosthesis.

Snap  Attachment Denture

One option is to have two implants placed in your lower jaw and a denture made that snaps onto these implants. This option allows your lower denture to be more stable while chewing than without implants. However, there will still be movement of your lower denture, and sore spots will occur if any food particles, especially seeds, are caught under it. As with all removable replacement teeth, you still will need periodic appointments for denture adjustment.

Before Ball Attachment Denture
1. Before
After Dental Implants Placed
2. Implants Placed
Denture Attached
3. Denture Attached

Bar Attachment Denture

Another option involves placing four to six implants, depending on your jaw size or shape, into your lower jaw. After healing is complete, the implants are connected with a custom-made support bar. Your denture will be made with special internal retention clips that attach onto the support bar, enabling the denture to snap firmly into place. This is called an “overdenture.” The advantage of this option is that it is much more stable than the first option and allows very little denture movement. Your denture is still removable for easy cleaning and maintenance.

Before Bar Attachment Denture
1. Before
After Dental Implants Placed
2. Implants Placed
Denture Attached
3. Denture Attached