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Iron has long been recognized as a constituent of the tooth surface of many invertebrates and vertebrates (Schmidt, 1958, 1959; Schmidt and Keil, 1971;Preuschoft et al. WIA; Shellis and Berkovitz, 1976; Motta, 1985), although its function, if any, is uncertain. Some authors have suggested that iron serves to
harden the tooth, making it more resistant to abrasion and cracking
Originally posted by liveandlearn
reply to post by Overload
You know I am a slow thinker and many times I have to contemplate things a while before things hit me.
Originally posted by waveguide3
Metallic fillings (amalgam, gold, etc) show up black on xrays. Non-metallic things made from resin, ceramic, synthetic tooth medium, will show paler and similar to teeth but without internal structure (i.e solid white blobs). Dental caries and other infections can be seen as white/transparent areas.
Nothing sounds particularly unusual here.
The brain implants are intriguing tho.
WG3