Radiation Physics
The subatomic particle that carries a negative charge
What is an electron?
The overall darkness or blackness of the radiograph
What is density?
Radiation effects passed on to future generations
What are genetic?
Done before exposure of the pt. and can only be done by the dentist.
What is proper prescribing of x-rays?
In which PA radiograph is the mental foramen visible
Mandibular Premolar
This restricts the size of the x-ray beam.
What is a lead collimator?
Controls the penetrating ability of the x-ray beam
What is kilovoltage?
Effects from small doses of radiation absorbed over a long period of time
What is chronic radiation exposure?
The time between exposure of radiation and clinical symptoms
What is the latent period?
Name both films- 1. Has a wide mouth view of both max and mand arches. 2. Radiograph used to evaluate jaw relationships
1. Panoramic 2. Cephalemetric
When an electron is removed from an atom this occurs.
What is ionization?
Milliamperage, Kilovoltage, Exposure time, and Distance all together determine this. It deals with quality and quantity.
What is (intensity) of the beam?
What does MPD stand for?
What does ALARA stand for?
What is As Low As Reasonably Achievable?
Radiolucent and Radiopaque
Radiation that exits the tubehead and is aimed directly at the object
What is primary radiation?
Reduces the intensity of the x-ray beam while increasing the penetrating ability (quality) of the x-ray beam
What is an aluminum filter?
Theory that proposes that the water within the cell absorbs the radiation energy and cause toxins to form
What is the indirect theory?
This material is the MOST resistant to the penetration of X-rays.
What is lead?
This process can be seen in both an intraoral and extraoral film.
Coronoid Process
In the tube, this converts electrons to radiation.
What is the Anode?
The intensity of radiation is inversely affected by the distance that the radiation has to travel
What is inverse square law?
The four critical organs with dental imaging
What are the thyroid gland, bone marrow, skin and eyes (lens)?
Formula used to determine the amount of radiation an occupationally exposed person has accumulated.
What is "age multiplied by 10mSv"?
This dip in the bone occurs in the area of the chin.