Occlusal and Localization Techniques

These flashcards cover key concepts and techniques related to occlusal and localization techniques in dental imaging.

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

To examine large areas of the maxilla or mandible.

When is the occlusal technique preferred?

When the area of interest is larger than a periapical receptor or when placement of periapical receptors is too difficult for the patient.

What types of conditions can localization techniques help to locate?

Foreign bodies, impacted teeth, unerupted teeth, retained roots, root positions, salivary stones, jaw fractures, broken needles, instruments, and dental restorative materials.

What is the principle of receptor placement in occlusal projections?

The receptor is placed with the tube side facing the arch being exposed and is stabilized by biting on it.

What are the maxillary occlusal projections used for?

Topographic projection for the palate and anterior teeth, lateral projection for palatal roots of molars, and pediatric projection for anterior teeth in children.

What type of projection is used to examine the buccal and lingual aspects of the mandibular arch?

Cross-sectional projection.

What is the vertical angulation for maxillary topographic occlusal projection?

+65 degrees.

What does the Buccal Object Rule determine?

The orientation of structures portrayed in two images exposed at different angulations.

In the Buccal Object Rule, what does it indicate if the object moves in the same direction as the PID shift?

The structure or object is positioned to the lingual.

What does the mnemonic SLOB stand for?

S = same, L = lingual, O = opposite, B = buccal.

How can the Buccal Object Rule be applied for locating an impacted supernumerary tooth?

By positioning the maxillary arch parallel to the floor and shifting the PID to exposure the second image.