VA5 wrote:I for one can see how metal poisoning can happen.. not from first hand experience though but I won't be surprised if I have elevated amounts in my body. I didn't think of it, actually, when I got the braces b/c I just thought the s/s wires/ties/coils wouldn't harm me.. I didn't think of it having nickel, for one. Now I'm glad that I got ceramic braces, however now I am concerned about the retainers I will have to wear for the rest of my life. What to do??
I would say, don't panic!
Firstly: The brackets and the wire in a hawley retainer are usually made from stainless steel. This may contain some nickel, but not high amounts of it. Some of the other componants may be higher in nickel content, arch-wires are commonly nickel-titanium for example (my lower one is at the moment) but you still don't need to panic unless you start having allergic reactions.
Secondly: People's braces and retainers don't generally dissolve... so the amount you are going to consume is really quite small. (I did manage to become the first of my orthodontist's patients to manage to rust their retaining wire, but I'm just special

)
Thirdly: Although nickel is technically a heavy-metal it doesn't cause problems in small amounts unless you have an allergy to it. Copper and silver are also heavy metals (I know a silversmith and he has blue scars on his hands from getting silver-dust in cuts) but people don't think twice about wearing jewellery made of these metals; like with nickel, they're only really likely to cause you harm in the case of allergies (as with nickel) or if you're somehow consuming/inhaling them in a powder form. I believe people actually
need a small amount of copper in their diet.
If you really wanted to avoid all contact with all metals that have some kind of toxicity it would completely take over your life. No using water from copper pipes, a very limited diet, no vaccines, no foil, no food in cans, no cutlery, the list goes on.
Some people have severe sensitivities to these chemicals, but they're in the minority. I for one have a chemical sensitivity to certain halogens (chlorine and bromine in particular). I can't even walk past a swimming pool without going dizzy, getting red, streaming eyes, breathing difficulties and an awful headache

; but that doesn't mean swimming pools should be banned.