Radiology for Pediatric Dental Patients Flashcards
1
Q
What are the principles of dental radiology?
A
- Justification
- Limitation
- Optimization
2
Q
Justification Principle
A
- radiograph exposure should provide info beneficial to the diagnosis and tx
- cannot be obtained from clinical exam
3
Q
Limitation Principle
A
- Radiation dose should always be kept as low as possible (ALARA)
4
Q
Optimization Principle
A
- Always try to obtain the best quality image possible
5
Q
Why are children at a higher risk with radiology?
A
- Greater risk from Ionizing radiation
- more proliferative cells
- less differentiated or mature cells
- longer expected remaining lifespan
6
Q
What strategies are used to reduce radiation exposure?
A
- High speed receptor
- Receptor Holding devices w/beam alignment capability
- Rectangular collimator
- Long cone
- Lead apron & thyroid collar
7
Q
Rinn XC
A
- Cut down to accommodate Child’s mouth
8
Q
Instruments for bisecting Technique
A
9
Q
Commonly used radiographic techniques?
A
Bitewing
Periapical
Occlusal
Panoramic
10
Q
What type of collimator and cone is best to reduce radiation exposure?
A
Rectangular collimator
Long cone
11
Q
Characterize the Anterior Maxillary Occlusal Projection
A
- No 2 Receptor
- anterior edge of receptor extends 2mm in front of incised edge of central incisors
- Central ray is toward the apices of the central incisors
- Vertical Angle: 60 angles
- Exposed at usually setting
