Exam 9: Intraoral Radiographic Technique: the Paralleling Method

In the paralleling method,the zygomatic process of the maxilla is:

Identify the film necessary to diagnose pathologic conditions of the tooth root:

When the PID is not positioned so that it almost touches the patient's face,a dark film will result.

Identify the error seen when an operator lets his or her finger off the exposure button prematurely while exposing radiographs:

Reversing the film to the x-ray beam will cause a light film/geometric pattern.

Preparing a patient for exposure of a radiographic series includes all of the following EXCEPT one.Which one is the EXCEPTION?

Identify the film that shows the teeth in occlusion with only the crowns visible:

Identify a desirable film placement to begin a full mouth radiographic survey:

Using the paralleling technique to evaluate periodontal bone height is essential because the paralleling technique prevents excessive dimensional distortion.

Bitewings are usually taken:

Improper horizontal beam alignment results in:

An overexposed film will appear similar to an overdeveloped film.

Identify an alternative radiographic exam for the edentulous periapical survey:

In a full-mouth survey of radiographs:

Identify the correct teeth to be radiographed with this film position: "the center of the film aligns with the second premolar":

Identify the most common error seen with the paralleling technique:

Vertical bitewings:

Identify the film placement most likely to excite the gag reflex:

Vertical bitewings can be used in both anterior and posterior regions of the mouth.Exposure factors need to be increased (kV,mA,and time)when exposing vertical bitewings.

The film packet and the long axis of the tooth being radiographed must be parallel to each other,and the central ray of the x-ray beam must be directed perpendicular to both describes the basic principles of what intraoral technique?