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Snap Attachment C/ | Attachment-retained overdentures
Attaching an overdenture on two implants in the
mandible by means of the snap attachment is a very
straightforward and economical restoration option
for edentulous patients.
The impression for a restoration fabricated in the
laboratory is made directly using the attachment
head. The laboratory is given the impression without
the snap attachment.
Inserting implant analog
Position the Ankylos implant
analog for the snap attachment
directly in the impression and
check that the fit is firm.
The Ankylos implant analog for
the snap attachment features
a hex and an attachment head
corresponding with the original
abutment and has a stable
retention region for anchorage
in the stone model.
Casting the model
Fill the impression with dental
stone class IV. The implant analogs
for snap attachments are a one-
piece units and are not designed to
be removed from the cast.
Assembling the prosthesis
Attach the Ankylos matrices for
snap attachments to the implant
analog as a placeholder and
prepare the prosthesis as for a
complete denture. The prosthesis
try-in, however, is made without
the matrices.
Polymerizing the matrices
Position the Ankylos matrices
for the snap attachments on the
abutment. The attached silicone
ring grips the hex of the snap
attachment abutment at its bottom
end and envelops the lamellae of
the matrix at its top end. Hence,
the silicone ring retains the
matrix in axial alignment with the
abutment.
The snap attachments are secured
in the prosthesis using cold- or
hot-curing resin. Ensure that no
synthetic material makes its way
between the lamellae. Observe the
manufacturer’s directions for the
polymerizate.
Step-by-step:
Overdentures on Ankylos® Snap Attachments C/