well, veneers can get cavities around the outsides, so keep an eye on them. some have toxic metals and/or toxic chemicals, so i would look over the MSDS (materials safety data sheet) and make sure they are ok. the same is true with white fillings, they can have toxic materials. you might want to get a biocompatibility test to make sure you are compatible with whatever materials the dentist is putting in your mouth, or with what you already have. info is on my website on the FAQs page
