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:
- Have no effect on x-ray production
- Increase the number of x-rays produced (correct)
- Change the quality of x-rays
- Decrease the number of x-rays produced
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:
- Decrease the exposure time
- Enhance image quality
- Increase radiation exposure
- Filter out low energy wavelengths (correct)
A faster dental speed film is preferred because:
A faster dental speed film is preferred because:
- It is cheaper
- It produces better quality images
- It requires longer exposure time
- It results in less radiation exposure to the patient (correct)
What is the fastest speed dental film available?
What is the fastest speed dental film available?
What is the standard size film for an adult periapical?
What is the standard size film for an adult periapical?
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.
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?
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:
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:
The error of overlapping when taking bite-wing radiographs:
The error of overlapping when taking bite-wing radiographs:
The penetrating power of the x-ray beam may be affected by:
The penetrating power of the x-ray beam may be affected by:
To measure radiation exposure in an office, a dental assistant should:
To measure radiation exposure in an office, a dental assistant should:
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.
An unexposed film after processing appears:
An unexposed film after processing appears:
In the x-ray tube, electrons travel from the:
In the x-ray tube, electrons travel from the:
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?
Bite wing radiographs are used to detect:
Bite wing radiographs are used to detect:
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:
A blurred image on the radiograph is the result of:
A blurred image on the radiograph is the result of:
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:
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:
Film holders are used for:
Film holders are used for:
The function of the x-ray developer is to:
The function of the x-ray developer is to:
Which of the following components of the film packet reduces scatter radiation?
Which of the following components of the film packet reduces scatter radiation?
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:
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.
Which of the following is not true about the bisecting technique?
Which of the following is not true about the bisecting technique?
What is the most common extra-oral film?
What is the most common extra-oral film?
Which of the following increases the radiation exposure to a patient?
Which of the following increases the radiation exposure to a patient?
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.
