x rays Flashcards
On November 8, 1895 who discovered x rays
Wilhelm poentgen
The penetrating power of x ray radiation is measured by the ? and the amount of radiation emitted is measured by the ?
- KV 2. Ma
Define primary radiation
produced by an x ray machine
Secondary radiation
passes thru objects
Name some of the effects of overexposure of x ray radiation
Damage to sex cells
Defects in future generations
List two ways an operator may avoid overexposure of x ray radiation
Stand back 6-8 feet
stand behind a thick wall
List two ways to protect the patient from unnecessary radiation
avoid retakes
lead protectors
what films are sealed in a plastic pouch which protects the film from light and contamination
Intraoral
Name three types of intraoral film
Bitewings
pa
occlusal
On what x ray can you see the crown and the crest area of the alveolar bone in the mandibular and maxillary teeth
BW
Identify the proper use of the following types of x ray film
No. 2 Adult
no/ 0 pedo
A blurred image on a radiograph is caused by what ?
moving tube head / patient moving
Overlapping of teeth on x ray is caused by
improper vertical angle