A method of eliminating streak artifacts from metallic dental restorations in CTs of head and neck cancer patients

Abstract

The purpose of this report was to develop a method to reduce streak artifacts derived from dental restorations in CT-imaging of the head and neck region. We selected six patients who were being treated for head and neck cancer and who had metal-derived artifacts on their CT that limited pre- or post-surgical visualization. The metal restorations were removed and replaced with non-metallic composite resin restorations. The CT was repeated as required on completion of the procedures. The streak artifacts were completely eliminated in patients in whom radiolucent composite materials were used. Patients have been followed for 6-26 months with no complications or breakdown of the restorations. The substitution of radiolucent for metallic restorations in special cases should be considered as a solution to CT dental artifact problems.