Does activated charcoal discolour crowns or fillings?
We ourselves have no crowns or fillings and therefore no first-hand experience. However, many bloggers describe that they never had any problems with it, i.e. that there were no discoloration or other problems with the fillings. After all, it's a 100% natural product. However, if you have crowns or fillings, discuss it with your dentist or dental assistant on occasion.