Metal titanium implants are superior to SinTx technologies.
For example if you are in areas with poor cell phone service or has bad TV reception the body could act like an antenna and improve signal strength.
As SintX acts like an insulator it would not be effective in these situations.
Additionaly EM radiation during geomatic storms could interact with the titanium implants in the body and generate electricity. Creating a mobile generator that would be powerful enough to charge a cell phone or small appliance.
Sintx Coating metal implants would not generate any electricity and cause more polution by creating openings in the ozone layer. In theory SinTX is antiquated technology and serves no purpose in todays world sans any metal in this regards !