PMC3098548_01
Primary impressions of maxillary arch with the palatal defect and the mandibular arch recorded using Alginate impression material
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Maxillary and mandibular primary impressions were made using alginate impression material [Figure 1].
Final impression of maxillary arch
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Details of the defect area were recorded using light body addition silicone elastomer (3M ESPE Express STD, Germany) and the wash impression was completed using medium body addition silicone elastomer [Figure 2].
Duplicate master cast with a double layer of modeling wax lining adapted in the defect area. Over this wax lining, a silicone putty index was adapted to hollow the obturator bulb
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This putty index was used to hollow the obturator bulb [Figure 3].
Two separate denture flasks used for acrylisation of the hollow obturator. The waxed up maxillary denture was flasked in first flask to obtain mold for maxillary denture. The second flask was used to pack the duplicate cast with the putty index for the hollow bulb
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Dewaxing, packing with heat polymerized acrylic resin and curing were done to obtain maxillary denture [Figure 4].
The hollow bulb and a lid for the bulb were prepared separately. Both the bulb to the denture base and the lid to the bulb were attached using autopolymerizing acrylic resin
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A lid for the bulb was prepared and attached to the open end of the bulb using autopolymerizing acrylic resin [Figures 5, 6].
Finished and polished maxillary denture with the closed hollow bulb obturator and the mandibular denture
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A lid for the bulb was prepared and attached to the open end of the bulb using autopolymerizing acrylic resin [Figures 5, 6].
Dentures inserted in the patient's mouth
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Both the dentures were finished, polished and inserted in the patient's mouth [Figure 7].