Dental Imaging Techniques Overview
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Questions and Answers

Peripheral magnification can be measured but the panorama you cannot measure. Due to focal trap.

True (A)

What is the term for the angle of the incisive canal, the point at which the incisive canal is being examined?

Incisal inclination

The term "Cephalometric" can be used to refer to the motor region, but not the sensory regions.

False (B)

Match the following terms with their definitions:

<p>Cone beam = Produces a cone-shaped X-ray beam. Distal = Away from the center of the body. Cephalometric = Refers to measurements of the head. Proximal = Near the center of the body. Axial = A view of the head from above, looking straight down. Sagittal = A side view, looking directly at the side of the head.</p> Signup and view all the answers

What is the difference between a cone-beam and distal/proximal?

<p>Cone beam is a type of X-ray machine that produces a cone-shaped X-ray beam. Distal and proximal are terms used to describe the location of something in relation to the center of the body. Distal means farther away from the center of the body, while proximal means closer to the center of the body.</p> Signup and view all the answers

The term "axial" is the same as "occlusal" when discussing X-ray positioning.

<p>True (A)</p> Signup and view all the answers

What is the difference between a sagittal and axial view?

<p>A sagittal view is a side view, while an axial view is a top view.</p> Signup and view all the answers

The term "submentovertex" is used to describe an X-ray view of the head and neck, usually angled upwards.

<p>True (A)</p> Signup and view all the answers

Flashcards

Periapical X-ray

A type of x-ray that focuses on the apex of a tooth, providing highly detailed images for diagnosis.

Periapical Magnification

The phenomenon where an object appears larger in a periapical x-ray than it actually is. This happens due to the angle of the x-ray beam.

Cone Beam CT (CBCT)

A specific type of x-ray that produces three-dimensional images of the head and neck, providing detailed anatomical information.

Panoramic X-ray

A type of x-ray that captures a panoramic image of the entire mouth, creating a wide view of teeth and jawbones.

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Focal Trough

The curved path of the x-ray beam during a panoramic x-ray, which can lead to distortion in certain areas.

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Lateral Cephalometric

A type of cephalometric x-ray where the x-ray beam is directed towards the side of the head, capturing a profile view. It's often used to analyze facial growth and skeletal structures.

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Textbook Lateral Cephalometric

In a lateral cephalometric x-ray, the anterior (front) region of the skull is often captured clearly and with less distortion.

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Digital Panoramic vs. Conventional

The main difference between conventional panoramic x-rays and digital ones is that digital x-rays use sensors to capture the image directly, resulting in a smaller radiation dose for the patient.

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Cone Beam CT (CBCT)

A type of digital x-ray that captures a series of images taken in different angles, creating a 3-dimensional model of the head and neck.

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Sagittal View (CBCT)

A digital x-ray that captures the entire jawbone and teeth from a side view.

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Study Notes

Principal Magnification

  • Peripheral may not be measured, but the panoramic view can be measured using a focal trunk, cone beam

Labio Lingual Inclination

  • Text book centered cephalometric can be used in anterior regions frequently

Difference Between Conventional and Digital A-Key

  • Main differences between conventional and digital A-key include reduction
  • Cone beam is less than conventional
  • Conventional views include sagittal, axial view, some lateral, and cephalometric views.
  • Axial view is same as the occlusal film

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Description

This quiz covers essential concepts related to dental imaging techniques, including principal magnification, labio lingual inclination, and the differences between conventional and digital A-key methods. It highlights the use of various imaging views and their applications in orthodontics. Test your understanding of these critical aspects of dental radiography.

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