Podcast
Questions and Answers
Increasing the mill amperage during the exposure time of a radiograph will:
Increasing the mill amperage during the exposure time of a radiograph will:
The purpose of adding aluminum discs in the x-ray tube head is to:
The purpose of adding aluminum discs in the x-ray tube head is to:
A faster dental speed film is preferred because:
A faster dental speed film is preferred because:
What is the fastest speed dental film available?
What is the fastest speed dental film available?
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What is the standard size film for an adult periapical?
What is the standard size film for an adult periapical?
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Panoramic radiography exposes the patient to less radiation than a full mouth series.
Panoramic radiography exposes the patient to less radiation than a full mouth series.
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What is the most important reason for using a lead apron in dental radiography?
What is the most important reason for using a lead apron in dental radiography?
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Critical organs exposed during dental radiograph procedures in the head and neck region include all of the following except:
Critical organs exposed during dental radiograph procedures in the head and neck region include all of the following except:
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It is important to monitor a patient's radiation exposure because the effect of radiation on human tissues is harmful and:
It is important to monitor a patient's radiation exposure because the effect of radiation on human tissues is harmful and:
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The error of overlapping when taking bite-wing radiographs:
The error of overlapping when taking bite-wing radiographs:
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The penetrating power of the x-ray beam may be affected by:
The penetrating power of the x-ray beam may be affected by:
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To measure radiation exposure in an office, a dental assistant should:
To measure radiation exposure in an office, a dental assistant should:
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According to the basic principles of the paralleling technique, the film is placed ______ to the long axis of the tooth and ____ to the central ray of the x-ray beam.
According to the basic principles of the paralleling technique, the film is placed ______ to the long axis of the tooth and ____ to the central ray of the x-ray beam.
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An unexposed film after processing appears:
An unexposed film after processing appears:
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In the x-ray tube, electrons travel from the:
In the x-ray tube, electrons travel from the:
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Which of the following might a patient be allowed to wear during panoramic exposure?
Which of the following might a patient be allowed to wear during panoramic exposure?
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Bite wing radiographs are used to detect:
Bite wing radiographs are used to detect:
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The size and shape of the beam is focused as it exits the tube head by the:
The size and shape of the beam is focused as it exits the tube head by the:
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A blurred image on the radiograph is the result of:
A blurred image on the radiograph is the result of:
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In the dental office, all of the following would be necessary for infection control procedures except:
In the dental office, all of the following would be necessary for infection control procedures except:
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The surfaces in the dental office that are most likely to become contaminated when exposing x-rays are:
The surfaces in the dental office that are most likely to become contaminated when exposing x-rays are:
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Film holders are used for:
Film holders are used for:
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The function of the x-ray developer is to:
The function of the x-ray developer is to:
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Which of the following components of the film packet reduces scatter radiation?
Which of the following components of the film packet reduces scatter radiation?
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An increase in any of the exposure factors (mA, kVp, or time) will result in a film that appears:
An increase in any of the exposure factors (mA, kVp, or time) will result in a film that appears:
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An assistant should stand at least ____ feet away and avoid the primary beam.
An assistant should stand at least ____ feet away and avoid the primary beam.
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Which of the following is not true about the bisecting technique?
Which of the following is not true about the bisecting technique?
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What is the most common extra-oral film?
What is the most common extra-oral film?
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Which of the following increases the radiation exposure to a patient?
Which of the following increases the radiation exposure to a patient?
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Study Notes
X-ray Basics
- Increasing mill amperage during radiograph exposure enhances x-ray production.
- Aluminum discs in the x-ray tube head filter out non-useful, longer low-energy wavelengths.
Dental Film
- Faster dental speed films minimize radiation exposure to patients.
- The fastest speed dental film is rated as F, facilitating quicker imaging.
- Standard size for adult periapical films is size 2.
Radiation Exposure
- Panoramic radiography exposes patients to less radiation compared to a full mouth series.
- Lead aprons are essential in dental radiography to protect reproductive tissue from radiation.
- Monitoring patient radiation exposure is crucial due to the cumulative harmful effects on human tissues.
Radiographic Techniques
- Overlapping in bite-wing radiographs prevents visualization of open contact areas between teeth.
- The paralleling technique requires film placement to be parallel to the tooth's long axis and perpendicular to the central ray of the x-ray beam.
- An unexposed film appears clear after processing.
X-ray Tube Functionality
- In an x-ray tube, electrons move rapidly from the cathode to the anode.
- The collimator shapes and focuses the beam as it exits the tube head.
Patient Management
- Patients can typically wear watches during panoramic exposures but need to remove other potential interferences.
- Bite wing radiographs are primarily utilized to detect interproximal decay between teeth.
Image Quality
- Blurred images on radiographs often result from patient movement during exposure.
- An increase in exposure factors (mA, kVp, or time) leads to darker films.
Infection Control and Safety
- Infection control in dental offices necessitates various protocols, but the use of shoe covers is not typically essential.
- Surfaces most likely to become contaminated during x-ray procedures include all surfaces in the dental area.
Radiographic Equipment
- Film holders are employed for multiple reasons including stability and accuracy during imaging.
- The x-ray developer chemically alters silver halide crystals to produce visible images.
Radiation Protection
- Lead foil within film packets helps reduce scatter radiation.
- Dental assistants should maintain a safe distance of at least 6 feet from the primary beam for safety.
- Retaking an x-ray due to errors increases radiation exposure to the patient.
Techniques and Preferences
- The bisecting technique is not preferred in comparison to the paralleling technique in standard practice.
- Panoramic films rank as the most common type of extra-oral film used in dentistry.
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Description
Explore the fundamental concepts of X-ray technology with these flashcards. Learn about radiation exposure, film speed, and filtering techniques used in radiography. Ideal for dental and medical students seeking to deepen their understanding of X-ray procedures.
