________ is the reshaping or recontouring of nonsupporting bone that is not in contact with the root

Which standard is the basis for most elevator regulations?

A) ASTM E-84 B) NFPA® 1500 C) ISO 9000 D) ASME/ANSI A17.1

What is the more common name for the alimentary canal?

A) Ear canal B) Digestive tract C) Peritoneum D) Cecum