How much do teeth whitening kits cost?

I inherited a bunch of teeth whitening kits from my cousins who both go to the same dentist. They bought teeth whitening for life from their dentist. Every time they go they get a kit with gel. They have so much of the stuff that they have given a lot of it to me. I’m …

Is going mercury free and removing silver fillings really safe?

Is going mercury free for fillings really safe? I have 6 silver fillings, but if removing them is not safe I want to know before I make the request. My last dentist told me that there is more mercury released during the process than if I kept the fillings. My current dentist said he has …