The optimal level of fluoride that prevents caries without mottling the teeth is ____ ppm

Wrong dose errors are not counted for ________ except when the quantity has been specified by the physician

A) intravenous injections B) extended-release tablets C) ointments and topical solutions D) suppositories

Fires can release tremendous amounts of __________, which is readily used by water mist systems to convert the water droplets to water vapor

a. heat b. by-products c. chemicals d. gases