Radiation Protection - Lecture Notes ch4

A set of flashcards covering key concepts from the Radiation Protection lecture notes, focusing on definitions, safety protocols, and regulatory guidelines.

What are the key goals of radiation protection in dental settings?

Minimize radiation exposure to patients while maximizing the benefits of the procedure.

Who is responsible for prescribing radiographs?

Only the dentist can prescribe radiographs; dental hygienists can only request them.

What is inherent filtration in dental x-ray machines?

Inherent filtration occurs when the primary beam passes through components like the glass window of the x-ray tube and is equivalent to 0.5 to 1.0 mm of aluminum.

What is the recommended total filtration for dental x-ray machines operating at or below 70 kVp?

A minimum total of 1.5 mm aluminum filtration is required.

What does ALARA stand for?

As Low As Reasonably Achievable, it emphasizes minimizing radiation exposure.

What protective measures should be taken before x-ray exposure?

Proper equipment usage, timely prescription of dental images, and limiting the number and frequency of exposures.

What is the purpose of a collimator in dental x-ray machines?

A collimator restricts the size and shape of the x-ray beam, reducing patient exposure.

What type of protective devices should be used during x-ray exposure?

A thyroid collar and lead apron are recommended to shield against scatter radiation.

What adjustments can be made to limit patient radiation exposure during x-ray procedures?

Adjustments to kVp, milliamperage, and exposure time settings.

What is the primary purpose of using beam alignment devices?

To stabilize the receptor and reduce the chance of movement during exposure.