Using the fixed removable overdenture on a milled bar as an alternative treatment method
in cases of unfavorable implant placement in the edentulous maxilla or mandible.
When restoring the edentulous maxilla or mandible with an
implant supported prosthesis, it is necessary to balance the requirements of function and
esthetics. For best esthetic and phonetic results, a close contact between the denture
base and the alveolar mucosa is required.
This however, makes it difficult to clean the periimplantary areas properly. Also, if
implant positioning is not ideal, it is difficult to make a restoration that is
esthetically acceptable to the patient. The best way to solve the conflicting demands of
esthetics and function is to use a custom milled bar as the substructure. An overdenture
is then made, using the nonresilient, positive locking, friction free MK 1 attachment to
lock the overdenture to the subframe. The overdenture corrects the malalignment of the
implants; the MK 1 attachments allow the patient to easily remove the denture for proper