Question 1

Mounted radiographs increase:&#10;A) chances of damage to the emulsion.&#10;B) chances of error in determining the patient's right and left sides.&#10;C) accessibility for interpretation.&#10;D) handling of individual films.

Accepted Answer

Mounted radiographs are easily stored in the patient record and are readily accessible for interpretation.

Question 2

A foramen is a(n):&#10;A) broad, shallow, scooped-out or depressed area of bone.&#10;B) hollow space, cavity, or recess in bone.&#10;C) opening or hole in bone that permits the passage of nerves and blood vessels.&#10;D) sharp, thornlike projection of bone.

Accepted Answer

A foramen is an opening or hole in bone that permits the passage of nerves and blood vessels.

Question 3

The purpose of three-dimensional imaging includes which of the following?&#10;A) Used to enhance the evaluation of pathology&#10;B) Used to determine distances to critical anatomic landmarks&#10;C) Eliminates deficiencies that could hinder accurate interpretation of images&#10;D) All of the above

Accepted Answer

With the use of three-dimensional digital imaging, the dentist now has the ability to evaluate pathology and discern distances to critical anatomic landmarks with more detailed information, allowing for a more accurate interpretation.

Question 4

In 1999, what technology was introduced that allows for the viewing of structures in the oral-maxillofacial complex in three dimensions?&#10;A) Panoramic imaging&#10;B) Two-dimensional imaging&#10;C) Cone-beam computed tomography&#10;D) Traditional CT scan

Accepted Answer

In 1999, a technology termed cone-beam computed tomography (CBCT) was introduced that allows for the viewing of structures in the oral-maxillofacial complex in three dimensions.

Question 5

A small detector that is placed intraorally to capture a radiographic image is a:&#10;A)sensor&#10;B) grid.&#10;C) panoramic receptor.&#10;D) periapical receptor.

Accepted Answer

In digital imaging, a receptor that is used to capture an intraoral or extraoral image is called a sensor.

Question 6

Which of the following sensors is a solid-state detector that contains a silicon chip with an electronic circuit embedded in it?&#10;A)Charge-coupled device&#10;B) Complementary metal oxide semiconductor/active pixel sensor&#10;C) Charge injection device&#10;D) Digital x-radiation camera

Accepted Answer

The charge-coupled device (CCD) is a solid-state detector that contains a silicon chip with an electronic circuit embedded in it.

Question 7

Advantages of digital imaging include:&#10;A)color imaging rather than black and white&#10;B) low initial setup costs&#10;C) all sensors can be autoclaved&#10;D) increased speed of image viewing

Accepted Answer

An advantage with digital imaging is increased speed of image viewing.

Question 8

The electrons that compose the silicon charge-coupled device (CCD) can be visualized as being divided into an arrangement of blocks or picture elements known as:&#10;A)pixels&#10;B)a field arrangement.&#10;C)a grid&#10;D)phosphors&#10;

Accepted Answer

A charge-coupled device is a type of direct digital sensor technology with a solid-state detector made of silicon that is arranged in an array of x-ray-sensitive pixels.

Deck 14: Digital Imaging, Three-Dimensional Digital Imaging, Normal Anatomy: Intraoral Images, Film Mounting and Viewing