radiographic interp Flashcards
term
1) x-rays
- ionizing beam
2) radiograph
- image obtained using x-ray
radiation is cumulative over time
diagnostic value
1) caries
2) pulp
3) tooth integrity
4) bone
5) development
5) anomalies
6) post op treatment
carious lesions
1) incipient detection
- 40-50% otherwise overlooked
- caries progresses faster in primary (wider pulp, thinner enamel, less dentin)
2) size and depth
- early detection = early intervention
- consider tooth lifespan
- alloy/resin/GI or SSC
pulpal exam
1) proximity of caries to pulp
2) signs of abscess in intra radicular (posterior) and periapical (anterior)
- abscess in furcation:
3) internal resorption or calcification in canals
4) eval of pulpotomy q 1year
alteration in bone
1) perio
2) trauma
alteration in dental formation
1) amelogenesis imperfecta
2) dentinogenesis imperfecta
3) idiopathic hypocalcification and hypoplasia
4) other anomalies
emergencies
1) history of pain, swelling, trauma
2) mobility, except normal exfoliation
post operative review
1) post surgery
2) restoration quality
- margins, contour, contacts
3) pulp therapy
- typically not taken except for q 1 year evals of pulpotomies in primary teeth
for children, x-rays:
1) lead apron and thyroid shield
2) digital sensor or fast F speed film
3) properly collimated and filtered x ray
4) long open cone
5) exposure record
- in peds, instructor must approve all radiographs
for parent
1) lead apron
2) thyroid shield
3) should not assist if pregnant
for dental staff
1) never hold sensors or film in place
2) stand behind a shield or 6 ft away
technical considerations
1) digital sensor / F speed
2) good sensor placement
3) careful management of images
4) careful handling sensors
5) safety
risk benefit considerations
1) opportunity to education parent about safety, risk/benefit
2) parent wavier of necessary radiographs legally invalid
3) proceeding without necessary radiographs puts dentist and patient at risk
digital radiographs
1) direct
- charge coupled device
2) indirect
- photo stimulable phosphor plate
- typical in peds clinic
size 0
1) peds
2) smallest
3) less than 7 years
4) BWZ and PA