Ch. 10 dental radiography

Calibration of dental x-ray equipment can be performed by a dentist dental hygienist and dental assistant. T/F

false

Annual test for dental x-ray machines can be performed by a dentist dental hygienist and dental assistant

True

For quality control purposes each new box of unopened film should be tested for film freshness and fogging before it is used

True

After processing fresh film that has been properly stored and protected will appear

Clear with a slight blue tint

After performing the film screen contact test, a wire mesh image of uniform density appears. These results indicate what

Adequate film screen contact

When functioning properly, a view box should emit a uniform and brilliant light

False

One of the most critical areas of quality control that requires daily monitoring is what

Processing of films

The coin test is used to check

Proper safe lighting

The following must be closely monitored with manual processing techniques

Temperature of the water bath, levels of the processing solutions, accuracy of the timer, and accuracy of the thermometer

On the average, processing solutions must be changed

Every 3 to 4 weeks

On the average processing solutions should be replenished

Once each day

Fresh films and fresh chemicals must be used when preparing reference radiographs

True

Reference radiograph

A radiograph that is processed under ideal conditions and then used to compare the film densities of radiographs that are processed daily

The densities seen on the daily radiograph appear lighter than the densities seen on the reference radiograph these results indicates that

the developer soln is too cold

The clearing test is used to monitor

Fixer strength

Regardless of who actually exposes and processes radiographs, the dentist is ultimately responsible for the diagnostic quality of all dental radiographs

True