Dental film packet and films Flashcards
Revision for online assessment
List the contents of a dental film packet
Paper
Film
Paper
Foil
What name is given to the raised mound on a dental film packet?
A Pimple
What is the purpose of the ‘pimple’?
In the use of correctly positioning the film in the patients mouth
Should always face the operator or x-ray tube
What is the purpose of the black paper in the film packet?
To protect the film from light
What is the purpose of the film?
To capture the image
What is the purpose of the lead foil?
Absorbs the scatter radiation
If you were using an intra oral film where would the film be positioned?
Inside the patient’s mouth
Where would an extra oral film be positioned?
Outside the patient’s mouth
What does PA stand for?
Periapical
Describe the image produced by a periapical
Close up image of one or two teeth, includes, crown, root and apex
What technique describes the x-ray beam being positioned parallel to the tooth or film
Paralleling technique
What piece of equipment would be used to achieve the paralleling technique?
A film holder
What name is given to the film which shows upper and lower premolar and molar teeth on one side of the mouth?
Bitewings
When would a horizontal bitewing be used?
To detect:
Interdental/Interproximal caries
Occlusal caries
Latrogenic problems (overhangs or perforations)
When would a vertical bitewing be used?
To detect:
Bone levels
Bone loss
True periodontal pockets
