Radiography Flashcards
In manual processing the temp of the developer should be?
18-22 c
The collimator is used to?
Focus the beam
PT’s with high caries should have horizontal bw every?
6 months
A under developed x-ray will be?
Too light
An anterior occlusal is taken because off?
Fractures
IRMER is for..
Patients
IRR is for..
Staff
Greater risk of getting cancer is from?
CT mandible + maxilla
CT head
You should be how far away from the x-ray?
1.5m
2m =safe zone
ALARP stands for?
As low as reasonably practical
What is the order of processing?
Development Washing Fixation Washing Drying
How many stages are there in developing x-rays?
5
What is the chemical developer?
Alkaline
What is the chemical fixer?
Acid
What colour is the safe light on manual processing?
Red/orange
If x-ray equipement appears to be leaking or damaged who should be notified?
The RPS
Whose role is it to ensure that contingency plans are in place?
The RPS
What does OPT stand for?
ORTHOpantomograph
How can staff x-ray exposure be checked?
Dosimeter
Anterior occlusal radiographs are often taken to check for?
Delivery stones
Palatal cysts
Supernumerary teeth
An undeveloped radiograph will appear as a?
Faint image
If a developed radiograph is black what is it showing?
Over developed
When should radiographs be mounted?
After every patients
Where should unexposed film packets be stored?
Away from radiation
At room temperature
In stock rotation order
What colour do amalgam fillings appear as on radiographs?
White
What colour do composite fillings appear as on radiographs?
Grey
Why should radiographs be washed after fixing?
Remove any chemicals
How should Intra-oral radiographs be held in place?
By the holder
What does RPS stand for?
Radiation protection supervisor
Intensifying screens found in radiographic cassettes act by..
Shining more x-rays onto the film
Staff must wear a dose meter if they are exposed to
150 Intra oral of 50 DPT films a week
If an x Ray is diagnosable but not perfect which score would it be given based on clinical governance?
2
If there is a spillage of developing chemicals, how should they be cleared up?
By absorption in inert materials and disposed of in a container for collection
The deposits Found in the bottom of the developing tank are..
Silver
A set of local rules should be present at all practices where the following is used
Ionising radiation is used
Which x Ray is most likely to be used to check for un erupted upper canine teeth ?
Anterior occlusal
What colour is the safe light?
Red
How Often should a radiation protection file be updated?
Annually
Patients with low caries should have x rays no more frequently then..
18 months
What is the x-Ray recall for patients who have moderate caries?
12 months
