Dental Radiography

X-ray components

100

The x-ray machine component that is used to aim and direct the x-ray beam toward image receptor

What is the position indicating device (PID)?

200

The part of the x-ray machine which holds the ON/OFF switch

What is the control panel?

300

Measures the amount of current passing through the wires of the of the circuit. (QUANTITY OF X-RAYS)

What is the milliamperage (mA)?

400

Which material is used to absorb heat?

Copper

500

The window in which x-rays pass through

What is Beryllium window?

Tooth Anatomy

100

UR Central Incisor

8

200

surface away from the midline

distal

300

All 3rd molars

1,16,17,32

400

4,13,20,29

What are all 2nd premolars?

500

This is the fifth non-functioning cusp on a tooth

Cusp of Carabelli

Radiation Protection

100

2.5 mm

What is the minimum thickness (filtration) of machines operating above 70 kVp?

200

The collimator helps protect the patient by:

reducing radiation exposure

300

An absorbing material, usually aluminum, placed in the path of the x-ray beam to remove high percentage of the soft x-rays

What is filter

400

Controls the size and shape of the useful beam

What is collimation

500

Which type of collimator is more effective in reducing patient exposure?

rectangular

Infection Control

100

The first step in infection control

What is handwashing?

200

What needs to occur prior to disinfection?

pre-cleaning (cleaning)

300

contact intact skin

non-critical instruments

400

critical instruments

penetrate through the skin (exposed to blood, tissues)

500

Manual cleaning of contaminated instruments is

not recommended