X-ray Basics Flashcards

Questions and Answers

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:

Decrease the exposure time

Enhance image quality

Increase radiation exposure

Filter out low energy wavelengths (correct)

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?

F Signup and view all the answers

What is the standard size film for an adult periapical?

2 Signup and view all the answers

Panoramic radiography exposes the patient to less radiation than a full mouth series.

True Signup and view all the answers

What is the most important reason for using a lead apron in dental radiography?

Protect reproductive tissue Signup and view all the answers

Critical organs exposed during dental radiograph procedures in the head and neck region include all of the following except:

Hair Signup and view all the answers

It is important to monitor a patient's radiation exposure because the effect of radiation on human tissues is harmful and:

Cumulative Signup and view all the answers

The error of overlapping when taking bite-wing radiographs:

Causes the inability to see the open contact areas between the teeth Signup and view all the answers

The penetrating power of the x-ray beam may be affected by:

All of the above Signup and view all the answers

To measure radiation exposure in an office, a dental assistant should:

Wear a dosimeter or film badge Signup and view all the answers

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.

Parallel, perpendicular Signup and view all the answers

An unexposed film after processing appears:

Clear Signup and view all the answers

In the x-ray tube, electrons travel from the:

Cathode to the anode Signup and view all the answers

Which of the following might a patient be allowed to wear during panoramic exposure?

Watch Signup and view all the answers

Bite wing radiographs are used to detect:

Decay in between teeth Signup and view all the answers

The size and shape of the beam is focused as it exits the tube head by the:

Collimator Signup and view all the answers

A blurred image on the radiograph is the result of:

Patient movement during exposure Signup and view all the answers

In the dental office, all of the following would be necessary for infection control procedures except:

Shoe covers Signup and view all the answers

The surfaces in the dental office that are most likely to become contaminated when exposing x-rays are:

All of the above Signup and view all the answers

Film holders are used for:

All of the above Signup and view all the answers

The function of the x-ray developer is to:

Make a chemical change with the silver halide crystals Signup and view all the answers

Which of the following components of the film packet reduces scatter radiation?

Lead foil apron Signup and view all the answers

An increase in any of the exposure factors (mA, kVp, or time) will result in a film that appears:

Darker Signup and view all the answers

An assistant should stand at least ____ feet away and avoid the primary beam.

6 Signup and view all the answers

Which of the following is not true about the bisecting technique?

True Signup and view all the answers

What is the most common extra-oral film?

Panoramic Signup and view all the answers

Which of the following increases the radiation exposure to a patient?

Retaking an x-ray because of an error Signup and view all the answers

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.

X-ray Basics Flashcards

Questions and Answers

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:

A faster dental speed film is preferred because:

What is the fastest speed dental film available?

What is the standard size film for an adult periapical?

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?

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:

The error of overlapping when taking bite-wing radiographs:

The penetrating power of the x-ray beam may be affected by:

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.

An unexposed film after processing appears:

In the x-ray tube, electrons travel from the:

Which of the following might a patient be allowed to wear during panoramic exposure?

Bite wing radiographs are used to detect:

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:

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:

Film holders are used for:

The function of the x-ray developer is to:

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 assistant should stand at least ____ feet away and avoid the primary beam.

Which of the following is not true about the bisecting technique?

What is the most common extra-oral film?

Which of the following increases the radiation exposure to a patient?

Study Notes

X-ray Basics

Dental Film

Radiation Exposure

Radiographic Techniques

X-ray Tube Functionality

Patient Management

Image Quality

Infection Control and Safety

Radiographic Equipment

Radiation Protection

Techniques and Preferences

Studying That Suits You

Description

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