TEXAS RDA TEST PAPER ANSWERS AND QUESTIONS
SET A+
✔✔Extraoral radiographs - ✔✔panoramic- gives overall view of the mandible and
maxilla. detects lessions in the jaw/pathology. locates impacted teeth, and trauma
cephalometric- shows major functional skeletal structures and relation to each other.
used to measure and evaluate dentofacial proportions
✔✔Radiopaque - ✔✔white or light gray areas on x-ray
metal in crowns, bridges, and implants, alloy fillings, root canal fillings, enamel, and
composite fillings
✔✔Radiolucent - ✔✔medium gray or black areas on an x-ray
tooth pulp/nerve, caries, abscesses, missing tooth structure, and the open areas of the
mouth are captured
✔✔Incorrect vertical angulation - ✔✔Foreshortening- caused by excessive vertical
angulation
Elongation- caused by insufficient angulation
✔✔Lead apron - ✔✔must be worn by every patient during every radiographic procedure
must be hung or draped
✔✔Thyroid Collars - ✔✔must be used for all patients for all exposures. reduces
radiation/exposure by 50%
✔✔Maximum Permissible Dose (MPD) - ✔✔the exposure limit for those who are
occupationally exposed to radiation.
✔✔Infection Control for Darkroom - ✔✔-new gloves when entering darkroom
-disinfect daylight loader and any surfaces touched
✔✔ways to help patient with x-rays - ✔✔-explain steps
-remind patient it will only last a second
SET A+
✔✔Extraoral radiographs - ✔✔panoramic- gives overall view of the mandible and
maxilla. detects lessions in the jaw/pathology. locates impacted teeth, and trauma
cephalometric- shows major functional skeletal structures and relation to each other.
used to measure and evaluate dentofacial proportions
✔✔Radiopaque - ✔✔white or light gray areas on x-ray
metal in crowns, bridges, and implants, alloy fillings, root canal fillings, enamel, and
composite fillings
✔✔Radiolucent - ✔✔medium gray or black areas on an x-ray
tooth pulp/nerve, caries, abscesses, missing tooth structure, and the open areas of the
mouth are captured
✔✔Incorrect vertical angulation - ✔✔Foreshortening- caused by excessive vertical
angulation
Elongation- caused by insufficient angulation
✔✔Lead apron - ✔✔must be worn by every patient during every radiographic procedure
must be hung or draped
✔✔Thyroid Collars - ✔✔must be used for all patients for all exposures. reduces
radiation/exposure by 50%
✔✔Maximum Permissible Dose (MPD) - ✔✔the exposure limit for those who are
occupationally exposed to radiation.
✔✔Infection Control for Darkroom - ✔✔-new gloves when entering darkroom
-disinfect daylight loader and any surfaces touched
✔✔ways to help patient with x-rays - ✔✔-explain steps
-remind patient it will only last a second
