Smile Preview Veneer Preparation I 11
Removing RBFM from the lingual is very important because if any RBFM has gone onto the lingual of the tooth (it
typically does) and if you do not remove it prior to curing with the light it will create a labial-lingual lock. If a labial-lingual
lock occurs the veneer will fracture when you remove it from the tooth. This is avoidable if you do not place any material
on the lingual of the tooth.
Also avoid placing the material in undercut areas such as interproximal segments of the tooth that interfere with the
path of withdrawal when removing the veneer from the tooth or it will fracture, similar to doing a wax up.
Now create subtle illusion affects using light reflections and contouring. Using your gloved pinky finger and / or thin
bladed sculpturing instruments you can easily make the tooth look longer or shorter, wider or narrower - in only
seconds by compressing
ProVeneer
against the tooth's surface (40 seconds). This is the time to remove any excess
material at the gum line so you will have a seamless emergence profile requiring minimal finishing and polishing if the
patient proceeds with work (30 seconds). Do this prior to curing
ProVeneer
with your light.
Finally, using your curing light, harden
ProVeneer
in five segments, each segment being exposed to the light according
to the manufacturer's specifications to ensure optimum curing. The segments to be cured are the incisal, middle of the
facial, gingival, mesial and distal.
Tip:
Do not undercure. Make certain to fully cure at the gingival and incisal areas.
Cure per the light manufacturer’s recommendation for the gingival,
middle, incisal, mesial and distal of the tooth.
