THE FINAL RESTORATION
The finished case shows the high-end cosmetic quality of the acrylic transitional partial and the patient was very satisfied with the end result.

STEP 10
I carefully de-flasked the case and checked the occlusion. Using a small carbide bur, I tapered the tips of the clasps for a more intimate fit against the interproximal of the teeth.

STEP 9
When the cast was dry, I mixed up Diamond D heat-cure powder and liquid, split packed the case right before the acrylic reached the doughy stage, trial packed and processed.

STEP 8
I boiled out the case and made sure all wax residue was removed. After the steam stopped rising, I painted on Diamond D separator. Then, after three minutes, I applied a second coat.

STEP 7
To process the case, I used Diamond D heat-cured acrylic, a high-impact, color-stable acrylic with the ideal degree of flexural strength. I invested the first half of the investment in a type III gypsum and covered the clasps to hold them in place; all teeth and wax were exposed. I smoothed all surfaces and eliminated all undercuts in gypsum. I applied a thin coat of petroleum jelly and then poured gypsum into the top half of the flask; plaster and stone separator can also be used for this step.

STEP 6
After setting the denture teeth, I waxed up the case, keeping the wax thickness and contour as close as possible to what the finished case would look like and being careful not to overwax. I also made sure I had lingual reciprocation on teeth #5 and #12 to ensure a better fit and prevent the teeth from drifting.

STEP 5
I used VITA MFT teeth because they offer high esthetics at a mid-range price. The posteriors have a cuspal inclination of 15° and can be used for either lingualized or centric occlusion. They also come in VITA classical and 3D shades, which made them ideal for this case since the patient had a 1M1 shade on her existing crowns and bridges.

STEP 4
I laid the clasp against the tooth and put a few drops of wax over the loop to hold the clasp in place on the model.

STEP 3
After the clasps were formed around the buccal of the tooth, I formed a retention loop so the clasp could be processed and retained in the acrylic. I cut off the excess clasp material, heated the clasp over the torch and created a loop, then adjusted it by adding more heat.

STEP 2
I adapted the clasps to the desired tooth. Some technicians use three-prong pliers, but I find it easier and faster using my fingers to form the clasps.

STEP 1
The first step is to fabricate the Itsoclear clasps: one on tooth #5 and one on tooth #12. I warmed the clasp over an alcohol torch to make it pliable.