Radiation Protection Principles in Dentistry

Reasoning for taking a radiograph, showing clinical need for it.

Using the best settings for the smallest radiation needed.

Taking only the radiographs necessary, avoiding unnecessary exposures.

Technique where the x-ray beam and film are parallel.

Shows the space between teeth, used for checking for gum disease.

Shows a wide view of the mouth, ideal for full-mouth images.

Filling or cap made of metal.

The bottom part of the mouth.

Bone surrounding the teeth and supporting them.

UK government body responsible for health regulations.

Ensuring staff receive suitable training.

Authorizing radiation exposure.

Activating the X-ray machine.

Guaranteeing regulations compliance.

The warning sign for intraoral radiographs should be placed at the entrance to the dental surgery.

A measurement of radiation dose that considers the type of radiation and the part of the body being irradiated.

The amount of energy absorbed by the tissue.

A measurement of radiation dose for a whole population.

The component of the x-ray machine that gets very hot during operation.

A filter that reduces low-energy photons in dental x-rays.

The tube of an x-ray machine is made of glass.

The negative terminal in an x-ray tube.

The outer casing of an x-ray machine is made of lead.

The dentist/dental therapist is the only person permitted to press the exposure button.

The atomic number refers to the number of protons in an atom.

Electrons are crucial for producing X-rays.

The longer side of a rectangular collimator aperture is 50 millimeters.

Interaction of X-rays with matter, resulting in the absorption of an X-ray photon.

Radiation effects that occur reliably and predictably as a consequence of radiation dose.

Traditional X-ray film known for producing high-resolution images in radiography.

Minimum radius for a controlled area during intraoral radiography, measured from the patient's head, outside the direct beam.

Radiographic item corresponding to mesial caries in dentin in the provided image.

Official body responsible for developing recommendations regarding radiation dose limits based on justification, optimization, and limitation.

Estimated risk of a fatal cancer induction connected to dental panoramic tomography using modern digital equipment.

Image receptor producing an indirect digital image in radiology.

Image receptor that produces higher spatial resolution in digital imaging.

Image receptor associated with a higher radiation dose in radiology.

A device used in radiography to enhance the image and reduce the radiation dose to the patient by increasing the light produced during the imaging process.

A protective device worn by patients to shield the thyroid gland from radiation during an x-ray.

No personal lead protection is needed for pregnant patients during bitewing X-rays.

An electrical component in the X-ray machine that changes the voltage of the electrical current, which is necessary to produce the X-ray beam of light

A component of the X-ray machine that removes low-energy X-rays from the beam, improving image quality.

A device used in radiography to hold the film or sensor at a specific distance from the X-ray source, ensuring consistent image quality.

A device made of a dense material that diverts radiation, acting as a protective barrier during dental X-ray procedures.

A dielectric fluid used in X-ray machines to insulate high voltage components and provide cooling.

A device used to shape and limit the size of the X-ray beam, reducing radiation exposure to the patient.

A stream of X-rays produced by an X-ray machine.

Using a circular collimator instead of a rectangular is four times less harmful due to the smaller beam area.

Moving the X-ray tube twice as far away from the patient reduces radiation harm by four times due to the inverse square law.

Only the patient is allowed inside a controlled radiation area during an intraoral radiograph.

Traditional X-ray film with a low radiation dose sensitivity.

Cone Beam CT scan of the full Mandible and Maxilla delivers the highest radiation dose of the standard dental imaging procedures

A type of radiation effect where the probability of occurrence increases with the dose, but the severity doesn't depend on the dose.

A type of radiation effect that only occurs above a certain radiation dose threshold and the severity increases with the dose.