RPD Manual 11 - Removable Prosthodontics - Dalhousie University

Major Connectors - 36
B. Full Palatal Plate
The full palatal plate is particularly indicated when maximum
tissue support is required. In particular it should be the major
connector of choice in long distal extension cases or where
six or less anterior teeth remain. It should be selected where
the primary abutments are periodontally involved, requiring
maximum stress distribution. Where the edentulous areas are
covered with flabby tissue or where there is a shallow palatal
vault this connector also provides greater stability and stress
distributing characteristics. The full palatal plate is usually
not used in the presence of torus palatinus.
The full palatal connector should be fabricated of a uniformly thin metal plate with accurate
anatomic reproduction of the rugae configuration (improves strength and rigidity). It should
cover the same area as a complete denture posteriorly. The large surface area of contact with the
mucosa improves the potential for retention.
Connectors of this type are generally of cast metal. However an acrylic resin plate may be used
in interim prostheses.
C. Palatal Strap (or Bar)
This type of connector can be wide (strap) or narrow (bar)
depending upon its location or the need for strength or
support of the denture. The palatal bar should only be used
in tooth supported cases where no other connector can be
used. It is usually objectionable due to its bulk. It should
never be used in cases involving distal extensions or
replacement of anterior teeth since it must be made to bulky
for rigidity.
The palatal strap is similar, but with a broader area of contact, providing better stabilization and
stress distributing properties with minimum bulk. Therefore it is preferable to the palatal bar for
posterior tooth supported cases. However, other connectors should be chosen if there is a large
torus or if many teeth are being replaced.
Relief may be required over bony midline areas in some instances to prevent fulcruming over the
overlying soft tissue. In these cases one thickness of 28 gauge wax relief should be placed over
the midline.