If you want to change dentists during a course of treatment, you may have to pay the first dentist for the treatment to date. It is always sensible to find a second dentist in advance who is prepared to complete a course of treatment already started by another dentist.
Oxide definition: An oxide is a compound of oxygen and another chemical element. | Meaning, pronunciation, translations and examples English Dictionary | Thesaurus | Translator | Grammar | Scrabble | Blog
Black oxide is a finish applied to iron and steel. There is also a ' black oxide' process applied to the copper inner layers of printed circuit boards, but that is another topic.