PDF Version - Glidewell Dental Labs

Figure 28: Even though we know we reduced the proper amount
on the incisal, facial and gingival surfaces, there are interproximal
areas where it is impossible to place depth cuts. This makes it
prudent at this point to try on the BioTemps ® prep stent (Glidewell
Laboratories) for the BioTemps Provisionals we will be placing
to make sure we have reduced enough in all dimensions. The
BioTemps are prepped as thin as possible, so there should be
plenty of clearance, except maybe interproximally.
Figure 29: You can also try on the stent that was made with the
BioTemps on the model. While the first prep stent serves to check
interproximal reduction, this one shows your preps in relation to
the BioTemps, which act as the proposed final restorations. Just
as important, this stent can save you if something goes wrong
with the BioTemps; simply fill this stent with Luxatemp ® Ultra
(DMG America; Englewood, N.J.) and place it on the teeth for a
direct temporary.
Figure 30: The rubber really meets the road when you try in the
BioTemps for the first time. If you have followed every step detailed
so far, 9 times out of 10 the BioTemps will drop into place passively.
This is our objective. If you skip the first stent that was made on
the BioTemps prep model, the BioTemps may not passively seat.
(For BioTemps techniques and troubleshooting tips, view the video
“BioTemps Techniques for Indirect Temporization,” available in the
Video Gallery at www.glidewelldental.com.)
Figure 31: Here we have placed the Luxatemp Ultra into the
BioTemps and are seating them on the preps. I insist on Luxatemp
Ultra because it is the only bis-acryl temporary material that goes
through a doughy stage, which allows me to pump the BioTemps up
and down in it as though it were methyl methacrylate — other bisacryl
materials go from soft to hard too quickly for this technique,
potentially locking the BioTemps into place too soon.
Another Use for Anterior BruxZir Solid Zirconia Restorations31