PMC6563632_01
(a) Pre operative palmer surface of the right hand with amputed thumb, (b) Pre operative ventral surface of the right hand with amputed thumb
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F1
The skin of amputated thumb was completely healed with no pus discharge or with no any signs of inflammation [Figure 1].
(a) Impression of right thumb with irreversible hydrocolloid impression material, (b) Impression of left thumb with irreversible hydrocolloid impression material
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F2
Similarly, impression of the left thumb was also made [Figure 2].
Master cast of the amputated thumb
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F3
Impression of the amputated thumb was poured in dental stone and master model was obtained from it [Figure 3].
Wax pattern on master cast of the amputated thumb
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F4
Wax pattern was adapted on master cast, and final waxing and carving were done [Figure 4].
Trial of wax pattern on the amputated thumb
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F5
Wax pattern trail was done to determine the fit, length, width, and shape of wax pattern [Figure 5].
Processing for silicone prosthesis
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F6
Larger flask was used for flasking procedure and dewaxing was done [Figure 6].
Packing of silicone material into the flask
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F7
Color matching of the dorsal and ventral surface was done separately in natural light [Figure 7].
Trial of final silicone prosthesis on the amputated thumb
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F8
Trial was done for final prosthesis to determine the fit, shape, and basic shade of final prosthesis [Figure 8].
External staining of silicone prosthesis for shade matching
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F9
Extrinsic staining was done using brush and extrinsic stain to match the final shade of prosthesis [Figure 9].
(a) Putty index made form master cast of the left thumb, (b) Fabrication of acrylic nail from putty index
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F10
An acrylic nail was fabricated using putty index of the left thumb and cold-cure acrylic resin [Figure 10].
(a) Final thumb prosthesis ventral surface, (b) Final thumb prosthesis dorsal surface
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F11
Cyanoacrylate adhesive was used for bonding the acrylic nail to final prosthesis [Figure 11].
Postoperative palmer and ventral surfaces of the right hand with silicone thumb prosthesis
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F12
Final fit and appearance of the prosthesis were evaluated on the amputated thumb [Figure 12], and the patient was instructed about the maintenance of the prosthesis.
Extraoral postoperative smiling photograph
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F13
The patient was happy and satisfied with the final treatment [Figure 13].