When I was 4 months old in 1973 I was diagnosed with craniosynostosis . I had surgery on my soft spot. I believe my mother said that I had somekind of a plate put in my head. I have to have an MRI and want to make sure there is no metal in that plate. I cannot find any information on what type of material they used in that kind of surgery back then. My medical records have been destroyed, and my parents have both passed away.

Summarized question: What type of materials are used in craniosynostosis surgery ?