Alright, I hate to do this, but I have never needed to pay attention when this has come up in the past... Sorry. I am looking for a good, trustworthy dentist. I am so tired of being "sold" extra crap when all I want is a quality teeth cleaning and check up. I don't need any whitening or chip covering (I have lived with my chipped tooth for 30 years). I am currently having these issues with mine. Please let me know if your dentist is who I'm looking for.