It was during _______ that helicopters FIRST became a common way to evacuate infantry casualties

A compounding aseptic isolator may be used when no clean room is available

Indicate whether the statement is true or false

Conditions that would indicate the need for a periapical radiograph include each of the following except one. Which one is the exception?

A) Abscess B) Cleft palate C) Large caries D) Root fracture