CF - Radiography

Question 1

Appearance of PA abscess

Answer 1

ill-defined RL
at apex of tooth

Question 2

Appearance of radicular/PA cyst

Answer 2

well-defined RL
more than 1cm diameter
corticated border (unless infected)
at apex of tooth

Question 3

Corticated vs sclerotic border

Answer 3

corticated - sharp, uniform, thin RO line (commonly seen in cysts and benign tumours)

sclerotic - RO, thicker and less uniform (seen in periapical cemental dysplasia and some malignant lesions)

Question 4

Appearance of periapical granuloma

Answer 4

well-defined RL

less than 1cm

not surrounded by corticated border

at apex

Question 5

Appearance of pulp stone

Answer 5

well-defined

RO, calcified bodies

within coronal pulp

Question 6

Appearance of periodontal abscess

Answer 6

ill-defined RL

lateral aspect of root