Dentsply Sirona Ankylos Balance C Laboratory Manual page 83

Delicate prostheses can be
weakened by the integration of
the snap attachment matrix.
In these cases, a customized
lingual plate or an inserted
model cast framework will
ensure the durability of the
prosthesis.
Remove the silicone ring after
polymerization and check the
movement of the activator.
The elaborated prosthesis, once
finished, should be delivered to the
practice for fitting.
Only the activator or deactivator should be
used to adjust the friction. Never bend the
matrix lamellae individually with a blade or
similar. The resulting uneven strain will cause
matrix breakage.
1
2
Should the prosthesis be seated
too firmly or too loosely on the
snap attachments, the friction of
the matrix lamellae can be adjusted
using the activator or deactivator.
Activate (1): The inner cone of
the instrument grips around
the lamellae, compresses these
and hence ensures an increased
friction. The prosthesis fits more
firmly.
Deactivate (2): The conical side
of the instrument pushes the
lamellae apart and hence ensures a
decreased friction. The prosthesis
fits less firmly.
83