Dental Assistant Practice Exam- Dental Radiography

Dental Assistant Practice Exam- Dental Radiography What type of film allows the entire dentition to be viewed on a single film? - answerPanoramic Which of the following is not a main component of panoramic x-ray unit? - answerPanoramic film What type of device does digital radiography use to record images taken of the patient's teeth? - answerElectronic sensor Which of the following inflicts the most radiation on a patient? - answerFMX What step helps large radiolucent the palate as seen on panoramic x-rays? - answerHaving the patient place their tongue in the roof of their mouth Why does digital radiography require less radiation than traditional x-rays? - answerSensors are more sensitive Digital x-ray sensors: - answerIntraoral are waterproofed by the manufacturer, but because they cannot be sterilized they must have a disposable barrier placed on them prior to use with each patient. What technique is the preferred exposure method for digital sensors? - answerParalleling Which of the following is not an advantage in regards to digital x-ray sensors? - answerSensor size Which of the following is NOT part of a film packet? - answerInner wrap What makes it possible to produce duplicate sets of radiographs without additional radiation or the need to use a duplicating machine? - answerUsing double film packets What size film is usually used for occlusal radiographs? - answer4 What size film is appropriate for use as a PA on an upper incisor? - answer1 What use is a size 2 film most appropriate for? - answerPosterior PAs and Adult BWX Which of the following is one of the basic techniques for obtaining x-rays? - answerParalleling What technique places film in line with the long axis of the teeth to be radiographed? - answerParalleling When using the paralleling technique, in what direction is the x-ray beam aimed? - answer90 degrees Which of the following requires the use of a film-holding instrument? - answerParalleling technique When placing a film in a PID, which of the following is correct? - answerThe raised dot should face the PID and toward the occlusal surface What is the position on the patient's face where the central x-ray beam is aimed? - answerPoint of entry What angulation must be perpendicular to the film and long axis of the teeth using the paralleling technique? - answerVertic