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A
properly bonded veneer, cemented crown, or bonded restoration is not a
contra-indication to place an NTI over those restorations. In
fact, many times an NTI is recommended to use in the protection
of those restorations. (An NTI will not be able to "pop off"
a well bonded veneer, nor will it remove a properly cemented crown).
In
the diagram,
the mandible is in a left excursive position. Without an NTI in
place,
the right lower canine would have been able to damage the distal
incisal
corner of the veneer bonded to the upper right central incisor.
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Veneers on the lower incisors may be at risk in the above
example.
The Discluding Element may
chip
off the incisal porcelain that wraps over the incisal edges if the
porcelain
is not at least 1.5 mm thick. If maxially and mandibular veneers
are being placed as part of the protocol to restore previous damage
from
bruxism, opposing NTI devices may be considered. Click here to see suggested uses of the "Auxiliary Slider" as an opposing device.
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Chairside 
