EndoRay Radiographs and Beam Alignment Devices Quiz

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Why must the front of the cassette be marked with the letter L or R for extraoral films?

To identify the type of film inside the cassette

To indicate the patient's gender

To indicate when the film was last used

To differentiate between the patient's left and right side (correct)

What is the purpose of the intensifying screen in a film cassette?

To reduce scatter radiation

To intensify the effect of radiation (correct)

To protect the film from light exposure

To increase the size of the x-ray beam

In extraoral radiography, what is one key difference between screen film and nonscreen film?

Sensitivity to light emitted from the intensifying screen (correct)

Number of layers in the film

Texture of the film surface

Thickness of the film

Why is the front side of a cassette typically made of plastic?

To allow passage of x-ray beams Signup and view all the answers

What material is used on the back side of a cassette to reduce scatter radiation?

Metal Signup and view all the answers

What is the purpose of the lead foil backing in a dental film packet?

To stop the radiation from extending beyond the film Signup and view all the answers

Why does extraoral film not have a raised dot on it?

To avoid confusion with intraoral films Signup and view all the answers

Why is an intraoral film placed inside the mouth during x-ray exposure?

To examine the teeth and supporting structures Signup and view all the answers

What is the function of the black paper wrap in a moisture-proof dental film packet?

To protect the film from light penetration Signup and view all the answers

When is a two-film packet used in dental radiography?

To produce two identical radiographs with one exposure Signup and view all the answers

What is the significance of the identification dot on a dental film?

To differentiate the left side from the right side Signup and view all the answers

Why does a film packet contain one or two films?

To produce multiple identical radiographs Signup and view all the answers

What is the main purpose of using screen-type film and intensifying screens in radiography?

To reduce the amount of radiation to the patient Signup and view all the answers

How does a nonscreen extraoral film differ from one that uses intensifying screens?

Requires more exposure time Signup and view all the answers

What is required for duplicating radiographs?

Using special duplicating film and machine Signup and view all the answers

Why should dental films be stored according to the manufacturer’s instructions?

To protect them from light, heat, and moisture Signup and view all the answers

What is the purpose of a safelight in a darkroom setting?

To protect duplicating film from light Signup and view all the answers

Where should dental films be stored to avoid exposure to scatter radiation?

According to manufacturer’s instructions Signup and view all the answers

What is the purpose of the beam alignment device in dental radiography?

To help position the PID in relation to the tooth and film or sensor Signup and view all the answers

What type of film is placed outside the mouth during x-ray exposure?

Extraoral film Signup and view all the answers

Which type of film shows a wide view of the upper and lower jaws on a single radiograph?

Panoramic film Signup and view all the answers

What happens if extraoral film boxes are opened in the presence of light?

The film will be exposed and ruined Signup and view all the answers

What is the main purpose of Rinn XCP instruments in dental radiography?

To help with beam alignment for endodontic procedures Signup and view all the answers

What is the benefit of using Rinn XCP-DS instruments in dental radiography?

They assist in holding digital sensors Signup and view all the answers

What is the purpose of dental film in dental radiography?

To produce a photographic image when exposed to x-rays Signup and view all the answers

What is a latent image in dental radiography?

An image only visible after processing Signup and view all the answers

How is film speed determined in dental radiography?

By the size of silver halide crystals, emulsion thickness, and dyes Signup and view all the answers

Which letters are used to classify film speed in dental radiography?

D, E, F Signup and view all the answers

What type of film reduces radiation exposure to the patient according to the text?

F-speed Signup and view all the answers

How many types of x-ray films are used in dental radiography according to the text?

Three types Signup and view all the answers