Flashcard: Mastering Dental 3D Imaging Techniques — 20 carte

Panoramic imaging — purpose?

To obtain a comprehensive maxillofacial view.

Panoramic equipment — components?

Tubehead, extension arm, control panel, receptor holder.

Patient preparation — key step?

Remove jewelry, glasses; use lead apron.

Patient positioning — goal?

Align head within focal trough accurately.

Focal Trough — function?

Ensures structures are sharply imaged within this zone.

Head positioning — important landmark?

Align Frankfort plane parallel to floor.

Extraoral film types — used in?

Panoramic radiography, digital sensors.

CBCT principles — mechanism?

Rotates cone beam to create 3D images.

CBCT uses — applications?

Implant planning, pathology, orthodontics, TMJ.

3D imaging — advantage?

Provides detailed, accurate spatial visualization.

Panoramic purpose — detection?

Caries, bone loss, growth, abnormalities.

Equipment — key feature?

Recessed long-beam tubehead reduces distortion.

Patient prep — safety focus?

Use shielding, explain ALARA, ensure stability.

Patient head — alignment?

Midsagittal plane perpendicular; Frankfort plane parallel.

Focal trough — shape?

Curved zone matching dental arch.

Head positioning — landmarks?

Orbitale, porion, canine line.

Extraoral film — characteristics?

Wide, designed for panoramic geometry.

CBCT — data acquisition?

Multiple 2D images reconstructed into 3D volume.

CBCT — main benefit?

Detailed 3D visualization of structures.

3D imaging — key advantage?

Reduces superimposition, improves diagnosis.