ObjectivesHead and neck cancer patients who have lost facial parts following
surgical intervention frequently require craniofacial implant retained
facial prostheses for restoration. Many craniofacial implant patients
require computed tomography and magnetic resonance imaging scans as part
of their long-term follow-up care. Consequently removal of implant
superstructures and peri-abutment tissue management is required for
those studies. The purpose of the present paper was to describe a method
for eliminating cranial imaging artifacts in patients with craniofacial
implants.Material and MethodsThree
patients wearing extraoral implant retained facial prostheses needing
either computed tomography or magnetic resonance imaging studies were
discussed. Peri-implant soft tissues contracture after removal of
percutaneous craniofacial implant abutments during computed tomography
and magnetic resonance imaging studies was prevented using a method
proposed by authors. The procedure involves temporary removal of the
supra-implant components prior to imaging and filling of the tissue
openings with polyvinyl siloxane dental impression material.ResultsImmediately
after filling of the tissue openings with polyvinyl siloxane dental
impression material patients were sent for the imaging studies, and were
asked to return for removal of the silicone plugs and reconnection of
all superstructure hardware after imaging procedures were complete. The
silicone plugs were easily removed with a dental explorer. The
percutaneous abutments were immediately replaced and screwed into the
implants which were at the bone level.ConclusionsPresented herein method eliminates the source of artifacts and prevents contracture of
percutaneous tissues upon removal of the implant abutments during
imaging.
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