DEN 130 1 H - Dental Radiology- 41

These flashcards cover key concepts, definitions, and procedures related to intraoral imaging techniques, as presented in the lecture notes.

What are the two primary types of projections used in intraoral technique?

Periapical images and Bitewing images

What is a full-mouth survey (FMX)?

A dental imaging technique that typically contains 18 to 20 images, including periapical and bitewing images.

What is the primary purpose of a bitewing image?

To show the upper and lower teeth in occlusion and to detect interproximal decay, periodontal disease, and recurrent decay.

Explain the five basic rules of the paralleling technique.

1. Image receptor placement must cover correct teeth. 2. Receptor must be parallel to the tooth's long axis. 3. The receptor must be away from teeth and towards the middle of the mouth. 4. Central ray must be perpendicular to the receptor and long axis of tooth. 5. Central ray must be centered on the receptor.

What is the recommended exposure sequence for anterior teeth using the paralleling technique?

Start with the maxillary right canine, expose all maxillary anterior teeth from right to left, end with the maxillary left canine, then move to the mandibular left canine and expose all mandibular anterior teeth from left to right.

What is the main disadvantage of the bisecting technique?

It can cause dimensional distortion in the images.

What is the correct vertical angulation for bitewing images?

+10 degrees to the occlusal plane.

What should the patient's position be when taking intraoral images?

The patient's midsagittal plane should be perpendicular to the floor.

Why is an image receptor holder necessary with the paralleling technique?

It ensures proper placement and stabilizes the image receptor away from the teeth.

What is the purpose of the occlusal technique in dental imaging?

To examine large areas of the upper or lower jaw by having the patient bite on the entire film.