Figure 3.

A = patient I has 2 craniofacial implants supporting titanium abutments that have stainless steel keepers attached to their ends;
B = patient II has a complete superstructure for attachment of a nose prosthesis. It is supported by 3 implants, and fabricated from gold alloy, with attached stainless steel keepers;
C = removing percutaneous abutment in patient III with attached stainless steel keeper, showing 7 mm thick cutaneous tissue.