Here are things that discolour my teeth:

Coffee
tea
herbal tea
antibiotics
varying foods, remember, they were used as colouring in the past

When I started brushing with H2O2 and baking soda, they really improved.
For me, the herbal teas are the worst at staining.

Thora
  -----Original Message-----
  From: gmetrop...@aol.com [mailto:gmetrop...@aol.com]
  Sent: September 11, 2006 11:53 AM
  To: silver-list@eskimo.com
  Subject: Re: CS>silver tarnishing teeth


  I mainly used Argentum 23 but only a couple monts at high doses. I think
its more like a brownish tarnish than grey. The teeth are healthy except one
molar I'm trying to heal. the dentist says bleaching would not work and its
not something I can try now. I have chronic lyme and had also nursed over 20
years.