Radiology - Interpretation & Findings Flashcards
What should we record when reporting a periapical/periradicular lesion? (5)
- Location
- Size
- Margins: defined? Corticated?
- What these changes signify
If appropriate suggest further investigation or treatment
What should we record when interpreting a CBCT (8)?
- symmetry
- margins
- bone consistency
- dentition
- supporting bone
- any other features?
- Summary
- Proposals
What does a straight upper margin with curved edges (like a meniscus) in the sinus indicate?
Presence of liquid
What does a curved margin in the sinus indicate?
Expansion
Define a corticated margin.
well defined margin with a white line surrounding
What does a corticated/well defined margin usually indicate about a lesion?
Slow growing as it continuously has to remodel
What does an ill defined margin usually indicate about a lesion?
Concerning and requires further investigation
What does a circular shaped lesion indicate?
Expanding equally
What does an irregular shaped lesion indicate?
Concerning and requires further investigation
What does a lesion which displaces other structures indicate? (2)
usually a slow growing lesion
- however in unusual cases it can be aggressive and rapid and indicate malignancy
What does a lesion which expands other structures indicate?
Slow growing lesion
What does a lesion which resorbs other structures indicate?
An aggressive lesion
List the factors in a radiological sieve that aids your provisional diagnosis (12)
- Normal
- Developmental
- Traumatic
- Inflammatory
- Cystic
- Neoplastic
- Osteodystrophy
- Metabolic/systemic
- Idiopathic (last resort)
- Iatrogenic: caused by medical intervention
- Foreign body
- Artefact
What are CT scans used for in dentistry? (2)
Can be used to examine hard and soft tissues however not routinely used for benign conditions as it has a high x-ray dose.
What are the advantage of using CBCT instead of CT scans?
Also images hard tissues
Has a lower x-ray dose
