When something is incorrect, such as overlap, elongation, foreshortening, cone-cut, or wrong vertical/horizontal angulation.

PSP plates used for capturing energy to convert to a digital format.

Aligns the X-ray beam toward the sensor/film for proper exposure.

Disposable covers placed over sensors, control panels, tube heads, and surrounding surfaces.

Lead apron / ALARA safety measures to minimize radiation exposure.

Guidelines and protocols to ensure safe exposure levels, measured by radiation badges.

PSP scanner / Laser scanner used to scan PSP plates to transfer visual data to a computer screen.

The overall range of grey to white shades on a radiograph.

Full Mouth Series (18-20 intraoral images).

Bitewing Radiograph showing the crowns of upper and lower teeth.

Periapical Radiograph showing the entire tooth from crown to root apex.

Occlusal Radiograph capturing large areas of the upper or lower jaw.

Panoramic Radiograph: Extraoral image showing teeth, jaws, and surrounding structures in a single view.

Bisecting-of-the-Angle Technique where the X-ray beam is directed perpendicular to an imaginary line bisecting the angle formed by the tooth long axis and sensor/film.

The overall darkness of a radiograph.

Equipment used to take intraoral X-rays using color-coded plastic rings, indicator arms, and biteblocks.

Position Indicating Device: Cone attached to the X-ray tubehead used to direct and aim the radiation beam at the patient's face.

Peak Kilovoltage: The setting that controls the voltage across the X-ray tube.

Milliamperage: Determines the amount of X-rays produced.

Photostimulable Phosphor: Reusable, flexible wireless plates coated with phosphor that store energy until scanned; requires a scanner.

Charge-Coupled Device that helps transfer images onto a computer monitor.

Excess bone on the midline of the roof of the mouth or lingual surface.

Excess bone that appears on the cheek-side (buccal surface).

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Key terms - NELDA

Term	Definition
Errors	When something is incorrect, such as overlap, elongation, foreshortening, cone-cut, or wrong vertical/horizontal angulation.
Indirect	PSP plates used for capturing energy to convert to a digital format.
Director	Aligns the X-ray beam toward the sensor/film for proper exposure.
Barriers	Disposable covers placed over sensors, control panels, tube heads, and surrounding surfaces.
Protection	Lead apron / ALARA safety measures to minimize radiation exposure.
Safety	Guidelines and protocols to ensure safe exposure levels, measured by radiation badges.
Scanner	PSP scanner / Laser scanner used to scan PSP plates to transfer visual data to a computer screen.
Contrast	The overall range of grey to white shades on a radiograph.
FMX	Full Mouth Series (18-20 intraoral images).
BWX	Bitewing Radiograph showing the crowns of upper and lower teeth.
PAX	Periapical Radiograph showing the entire tooth from crown to root apex.
OCC	Occlusal Radiograph capturing large areas of the upper or lower jaw.
PAN	Panoramic Radiograph: Extraoral image showing teeth, jaws, and surrounding structures in a single view.
BAR	Bisecting-of-the-Angle Technique where the X-ray beam is directed perpendicular to an imaginary line bisecting the angle formed by the tooth long axis and sensor/film.
Density	The overall darkness of a radiograph.
XCP	Equipment used to take intraoral X-rays using color-coded plastic rings, indicator arms, and biteblocks.
PID	Position Indicating Device: Cone attached to the X-ray tubehead used to direct and aim the radiation beam at the patient's face.
kVp	Peak Kilovoltage: The setting that controls the voltage across the X-ray tube.
mA	Milliamperage: Determines the amount of X-rays produced.
PSP	Photostimulable Phosphor: Reusable, flexible wireless plates coated with phosphor that store energy until scanned; requires a scanner.
Sensor (CCD)	Charge-Coupled Device that helps transfer images onto a computer monitor.
TORI	Excess bone on the midline of the roof of the mouth or lingual surface.
EXOSTOSIS	Excess bone that appears on the cheek-side (buccal surface).

Created by: Cocoalover

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