Hollowing_the_obturator

Hollowing the obturator: 

Hollowing the obturator First Technique: During packing a small cellophane bag filled with sand is inserted into the defect. Dough is added to cover the first piece holding the sand bag. After processing a hole is drilled and the sand is drained away. The opening is closed with self cure resin

PowerPoint Presentation: 

Cast frontal section Dough 2 nd layer Dough 1 st layer FIRST METHOD Sand bag

Hollowing the obturator: 

Hollowing the obturator Second Technique: During waxing, 4 mm of wax is adapted in the defect area to allow for future correction without perforation of the processed acrylic The defect is filled with clay and a layer of tin foil, which prevent adhesion between the wax and clay. A wax led is burnished over the tin foil. The wax led is processed separately into acrylic. The clay and tin foil are removed The obturator and the led are processed separately. The acrylic led is fixed to the base with self cure resin.

PowerPoint Presentation: 

Cast frontal section clay Wax led Wax 1 st layer SECOND METHOD

PowerPoint Presentation: 

CLASS VI