30 Questions
Which of the following determines the energy and penetrating power of radiation?
Wavelength
What is the term used to describe the mean energy or penetrating ability of the x-ray beam in dental imaging?
Quality
What is the measurement of force that refers to the potential difference between two electrical charges in the dental x-ray tubehead?
Voltage
Which factor controls the penetrating ability of the x-ray beam?
kilovoltage (kV)
What happens to the density of a dental image when the kilovoltage is increased?
It increases and appears darker
What type of image is useful for detecting and determining the progression of dental caries?
High-contrast image
What happens to the overall density of a dental image when the milliamperage is increased?
It increases and appears darker
Which type of dental image is used to examine large areas of the maxilla or the mandible on one image?
Occlusal
What is the purpose of a full mouth series (CMS)?
To show all tooth-bearing areas of both jaws
What type of dental image is appropriate when a new adult patient presents with clinical evidence of generalized dental disease or a history of extensive dental treatment?
Full mouth series (CMS)
What type of dental image would be used to see the mandible of a patient?
Panoramic
Which factor affects the intensity of the x-ray beam by controlling the speed of the electrons traveling between the cathode and the anode?
Kilovoltage
Which factor affects the intensity of the x-ray beam by controlling the number of electrons produced in the x-ray tube and the number of x-rays produced?
Milliamperage
Which factor affects the intensity of the x-ray beam by affecting the number of x-rays produced?
Exposure time
According to the inverse square law, when the target-receptor distance is doubled, what happens to the intensity of the x-ray beam?
It is reduced by one-fourth
Which term is used to describe the mean energy or penetrating ability of the x-ray beam in dental imaging?
Quality
What is the measurement of force that refers to the potential difference between two electrical charges in the dental x-ray tubehead?
Voltage
What determines the speed with which electrons move in the dental x-ray tubehead?
Voltage
Which factor controls the overall darkness or blackness of a dental image?
Kilovoltage
What happens to the contrast of a dental image when lower kilovoltage settings are used?
High-contrast image
What is the purpose of adjusting the contrast in a digital dental image?
To interpret caries
What happens to the overall density of a dental image when the milliamperage is increased?
Increases
Which type of dental image is used to examine large areas of the maxilla or the mandible on one image?
Occlusal examination
What is an edentulous patient?
A patient with no teeth
What projection would be used to see the mandible of a patient?
Occlusal examination
A new patient has no sign of disease and no restorations. What images do you take?
Bite-wing images
Which type of dental image is used to examine the crowns of both maxillary and mandibular teeth on a single image?
Bitewing examination
What is the term used to describe the measurement of force that refers to the potential difference between two electrical charges in the dental x-ray tubehead?
Voltage
According to the inverse square law, when the target-receptor distance is doubled, what happens to the intensity of the x-ray beam?
The intensity is halved
Which factor affects the intensity of the x-ray beam by controlling the number of electrons produced in the x-ray tube and the number of x-rays produced?
Milliamperage
Test your knowledge on x-ray intensity and its factors with this quiz. Learn about kilovoltage, milliamperage, exposure time, and distance and how they affect the intensity of an x-ray beam.
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