The filling is called an “inlay” when the material is bonded within the center of a tooth; it is called an “onlay” when the filling includes one or more points of the tooth or covers the biting surface. Inlays and onlays preserve as much healthy tooth as possible and are https://emergency-dentist-24-743208.wikissl.com/150254/the_ultimate_guide_to_invisalign_clear_retainers