Which of these is an example of an ultra sound over an x-ray a. uses more radiation b. its equipment needs its own room c. it can reproduce images of soft tissue d. it does not require training

Before packaging and wrapping instruments, the dental assistant should dry off the instruments to avoid a. incomplete sterilization of the instruments. b. the possibility of stains forming. c. putting them away wet. d. corrosion, rust buildup, or dulling of the instruments.