Endodontic Radiology Flashcards
All posterior teeth require how many PA radiographs?
2 (one straight on, one 20 degree H. angled)
Risks of endodontic radiology include?
- artifacts
- Dx from x-ray alone
- poor resolution/quality
What curvatures are more easily noticed?
mesio-distal compared to bucco-lingual
A “bullseye” indicates?
seeing a facial or lingual root tip “on end” (don’t know which direction it curves
The 4th (disto-lingual) root is seen most frequently in which populations?
Native American and Asian
We want to work and fill at _________________ in most cases.
1.0mm short of the canal exit
A PARL can be? Is it possible to diagnose which one from a radiograph?
- abscess, granuloma, cyst
- No, cannot Dx from radiograph… a biopsy must be taken
Which common anatomical landmark is superimposed on maxillary posterior apices?
maxillary sinus
Which common anatomical landmark is often superimposed on the maxillary central and lateral incisor apices?
nasal cavities
What is the most common anatomical landmark to be confused with a LEO? Usually associated with mandibular second premolar apex
mental foramen
What non-endodontic lesion may be either asymptomatic or mimic symptoms of SAP or AAA?
lateral periodontal cyst (abscess)
PCOD? Describe.
- periapical cemental osseous dysplasia (aka “cementoma,” periapical fibrous dysplasia, periapical cemental dysplasia)
- a dysplastic, rather than pathologic or inflammatory condition
What is one of the more common radiolucencies that is mistaken for a LEO?
PCOD
Hyperparathyroidism shows as?
- hyper calcemia
- hypo phosphatemia
- “Brown’s tumors”
Non-endodontic lesion that radiographically appears as multilocular radiolucencies of bone? (asymmetrical lesion)
central giant cell granuloma (CGCG)
