Magnets can be incorporated in root caps, or in supportive frames mounted on implants (as seen in the images below).
These offer an alternative to clips, with the advantage of having no wearing surfaces to maintain. However ideally they are used where other retentive elements already exist or can be fitted, in order to give the best performance.
On a model we have a wax pattern mock-up bar with magnets in place.
Cast Supporting Bar
Here we see the cast metal bar with the magnets in place.
Prosthetic Substructure
A metal substructure is constructed that will support the prosthesis. The bar magnets will retain this metal substructure securely in the patients mouth.
Magnet Retained Prosthetic
A palatal view of the magnetically retained prosthetic appliance.
Finished Prosthetic
The final product: A magnetically retained prosthetic appliance.
