Dental RaDiology Complete exam with
answeRs 100% CoRReCt
What landmark would most likely indicate the midline of the mandible? ✔✔ Genial Tubercles
An example of particulate radiation ✔✔ Cathode Rays
The function of the step-down transformer ✔✔ Convert the line current of 110 volts to less
than 10 mARadiation ✔✔ Electromagnetic rays that travel as waves of energy through space.
Radiology ✔✔ Science of radiation as used in medicine.
Radiograph ✔✔ Image produced on photosensitive film by exposing film to x-rays and
processing.
Radiation ✔✔ Electromagnetic rays that travel as waves of energy through space.
X-Radiation "X-Ray" ✔✔ High energy ionizing electromagnetic radiation.
What are the two techniques for taking a periapical radiograph? ✔✔ Paralleling - preferred
method using long axis of tooth as focal point AKA Extension-cone parallelling (XCP) & Bisecting
angle
What are the two types of Paralleling devices? ✔✔ Anterior XCP and Posterior XCP
, Interproximal BWXs are used to reveal ..... ✔✔ Interproximal caries, certain pulp conditions,
overhanging restorations, improperly fitting crowns, recurrent caries beneath restorations,
resorption of the alveolar bone.
How many films are typically used in the Navy for BWX? ✔✔ 3
FMX (Full Mouth X-Ray) series consists of ..... ✔✔ 18 films - 7 Max, 7 Man, 4 BWX films.
Occlusal Radiographs are used when ✔✔ fractures of the jaw or gross pathological conditions
are suspected. Holds 2 x-ray films which allow for 2 different developing times allowing
comparision.
Digital radiography uses an electronic sensor and ✔✔ computerized imaging system that
produces x-ray images almost instantly on a computer monitor.
Digital radiography uses dental film. T/F ✔✔ False - it uses a digital sensor which produces x-ray
images instantly on computer.
When taking panoramic radiographs of an obese patient, as compared to a slim patient,
exposure (mA or kVp) should: ✔✔ Be Increased
The major disadvantage of bisecting angle technique. ✔✔ Image distortion is more likely
What recommended precautions, from the CDC and the ADA, do they suggest to avoid cross
contamination. ✔✔ Wear Gloves, Dispose of saliva contaminated film packets carefully, Cover
control unit and tubehead with plastic barriers
When should a lead apron be worn? ✔✔ For any dental radiographs
answeRs 100% CoRReCt
What landmark would most likely indicate the midline of the mandible? ✔✔ Genial Tubercles
An example of particulate radiation ✔✔ Cathode Rays
The function of the step-down transformer ✔✔ Convert the line current of 110 volts to less
than 10 mARadiation ✔✔ Electromagnetic rays that travel as waves of energy through space.
Radiology ✔✔ Science of radiation as used in medicine.
Radiograph ✔✔ Image produced on photosensitive film by exposing film to x-rays and
processing.
Radiation ✔✔ Electromagnetic rays that travel as waves of energy through space.
X-Radiation "X-Ray" ✔✔ High energy ionizing electromagnetic radiation.
What are the two techniques for taking a periapical radiograph? ✔✔ Paralleling - preferred
method using long axis of tooth as focal point AKA Extension-cone parallelling (XCP) & Bisecting
angle
What are the two types of Paralleling devices? ✔✔ Anterior XCP and Posterior XCP
, Interproximal BWXs are used to reveal ..... ✔✔ Interproximal caries, certain pulp conditions,
overhanging restorations, improperly fitting crowns, recurrent caries beneath restorations,
resorption of the alveolar bone.
How many films are typically used in the Navy for BWX? ✔✔ 3
FMX (Full Mouth X-Ray) series consists of ..... ✔✔ 18 films - 7 Max, 7 Man, 4 BWX films.
Occlusal Radiographs are used when ✔✔ fractures of the jaw or gross pathological conditions
are suspected. Holds 2 x-ray films which allow for 2 different developing times allowing
comparision.
Digital radiography uses an electronic sensor and ✔✔ computerized imaging system that
produces x-ray images almost instantly on a computer monitor.
Digital radiography uses dental film. T/F ✔✔ False - it uses a digital sensor which produces x-ray
images instantly on computer.
When taking panoramic radiographs of an obese patient, as compared to a slim patient,
exposure (mA or kVp) should: ✔✔ Be Increased
The major disadvantage of bisecting angle technique. ✔✔ Image distortion is more likely
What recommended precautions, from the CDC and the ADA, do they suggest to avoid cross
contamination. ✔✔ Wear Gloves, Dispose of saliva contaminated film packets carefully, Cover
control unit and tubehead with plastic barriers
When should a lead apron be worn? ✔✔ For any dental radiographs
