Exam Chapter 22 & 23

Clear film/absence of image

A film not exposed to radiation results in ____

8 minutes

A general rule of thumb is to fix ___ as the developing time.

The purchase of duplicating film and a duplicating machine

Duplication of a radiograph requires ____

Perpendicular

In the bisecting angle exposure technique the central beam must be ___

Underexposed flim

Light film image is a result of ____

Blurred images

Movement of the patients heas or the tube head will result in ___

Entire dental arch

Occlusal radiographs may be taken to view ___

Parallel to the long axis of the teeth

Paralleling technique the film packet must be ____

Expensive equipment, extra time required to be proficient, sensors thicker, costly updates, viruses, infection control

What are disadvantages of digital radiograph?

Intensifying screens

What etxraoral cassettes lined with?

Head measurement, patients skeletal structure and profile

What is a cephalometric radiograph show?

Charge-coupled device (CCD)

What is one of the most widely used image receptors in the dental digital radiology?

Determine the number and size of x-ray film to be used

What observations should be made in a child's mouth before placing films?

Maxillary upright, mandibular upright

What position should the patient be placed for a bite-wing radiograph?

Elongation

What technique error is caused by not having enough angulation?

The x-ray bean missed part of the film causing the film to be only partially exposed

Whats cone-cutting?

Entire tooth and surrounding area

Whats would periapical radiograph show?

Orthodontist

Which dental specialty uses the cephalometric radiograph?

Computer 200, humsn eye 32 shades

Shades of gray computer display? Human eye?

Foreshortening

The technique error caused by having too much angulation is ___