DEN 130 1 H - Dental Radiology= 20

A set of flashcards covering the key concepts and definitions related to the bisecting technique as presented in the lecture.

What are the key terms associated with the bisecting technique?

Angle, bisect, triangle, isometry, long axis of the tooth, central ray.

What is the rule of isometry?

Two triangles are equal if they have two equal angles and share a common side.

Where should the receptor be placed in the bisecting technique?

Along the lingual surface of the tooth.

What should the central ray be directed towards in the bisecting technique?

Perpendicular to the imaginary bisector.

What is the purpose of using beam alignment devices?

To easy alignment of the position-indicating device (PID) and eliminate the need for patient stabilization.

What size receptor is typically used in the bisecting technique?

Size 2 receptor.

What is correct horizontal angulation?

The central ray is directed perpendicular to the curvature of the arch and through the contact areas of the teeth.

What are the recommended vertical angulation ranges for maxillary canines in the bisecting technique?

+45 to +55 degrees.

What can result from excessive vertical angulation?

Foreshortened images.

What is the exposure sequence for anterior receptor placements?

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

What are some advantages of the bisecting technique?

Can be used without a beam alignment device.

What are some disadvantages of the bisecting technique?

Image distortion, angulation problems.

What preparations should be done before using the bisecting technique?

Infection control procedures, patient seating, lead apron placement, and patient readiness.

What is the recommended vertical angulation for mandibular molars?

-5 to 0 degrees.

What is the significance of receptor placement in bisecting technique?

The area where the receptor must be positioned to include necessary teeth and surrounding structures in the radiograph.

What is horizontal angulation in the context of dental imaging?

The direction of the central ray in a horizontal or side-to-side plane.