Radiation Safety Flashcards
Which landmark is useful when mounting images of the mandibular posterior area?
MENTAL FORAMEN
Before exposing dental radiographs on a visually impaired patient?
Make sure to use touch to explain the equipment and procedure.
If you do not use disposable barriers during a radiographic procedure what should be done to all clinical surfaces?
Disinfected.
Processed PSP Plates Should be handled by the edges to prevent?
Scratches.
If a patient’s gag reflex is stimulated during the radiographic procedure?
Apply distraction techniques.
When using a 16 inch PID instead of an 8 inch PID, the exposure time must?
Be increased.
Which organization regulates disinfectants and sterilization?
EPA
When taking radiographs on a small child, who cannot hold the sensor intraorally, the operator should?
Ask the parent or guardian to hold the sensor.
What errors occur when the vertical angulation is incorrect?
Elongation.
Which of the following should be used to prevent cross-contamination of exposure buttons?
Plastic cover.
Which organ is the most sensitive to radiographic exposure?
Thyroid gland.
The Frankfort plane is an imaginary plane passing through the?
External auditory meatus to the floor of the orbit.
Compared to the paralleling technique, a disadvantage of the bisecting angle technique is?
Image distortion.
What helps decrease the exposure of the thyroid gland from the primary radiation beam?
Paralleling technique.
The penetrating x-ray beam made during dental radiography is called?
Primary radiation.
Which of the following item is considered biohazardous waste in a dental office?
Bloody gauze.
Which structure appears radiopaque on a dental radiograph?
Bone.
To produce ionizing radiation , an atom must?
Add an electron.
The annual maximum accumulated dose (MAD) of radiation for dental assistants is based on the following calculation
Age minus 18 times 5 rems/year.
What does cone beam computed tomography use?
Three-dimensional technology.
Which describes a double ended PSP Holder used for posterior and anterior teeth?
Eezee - Grip ®️
The aluminum disc in the x-ray tube head …
Filters out long wave x-rays from the primary beam.
How do you measure tissue damage from x-ray energy?
Radiation absorbed dose.
What causes light-colored radiographs?
Underexposure.
Which semi critical radiography equipment would most likely come into contact with mucous membranes?
Sensors .
What is used to measure excessive occupational exposure?
Dosimeter.
What is the name of the process for the harmful effects of radiation?
Ionization.
Impacted third molars are best seen with what type of radiograph?
Panoramic.
The diameter of the cone - shaped beam produced from a circular collimator is?
2.75 inches.
The most commonly used radiographic exposure for a 3 - year old patient is a ?
Bitewing.
Dilaceration in a radiographic image indicates the?
Root shape is bent or curved.
The best way to correct a cone cutting error is to adjust?
PID/cone position.
During routine handwashing, lather and scrub for a minimum of?
30 seconds.
