11 - Justification & Interpretation: Intra-oral Radiology

Question 1

radiography in periodontal disease: what is required?

Answer 1

• fine detail
• excellent quality films
• not overexposed
• well processed (if film), correct contrast (if digital)

Question 2

cervical burnout - what is the cause?

Answer 2

it is created by decreased x-ray attenuation of the cementum as it is very thin. therefore it is unable to stop xrays from reaching the image receptor

Question 3

state the recommended radiographs: uniform pocketing <6mm?

Answer 3

horizontal bitewings

Question 4

state the recommended radiographs: pockets >6mm? what if perio-endo lesion suspected?

Answer 4

vertical bitewings, supplemented with parallel periapical views if perio-endo lesion suspected.

Question 5

state the recommended radiographs: irregular pocketing?

Answer 5

• bitewings and/or paralleling periapicals

Question 6

state the recommended radiographs: anterior teeth?

Answer 6

paralleling periapicals

Question 7

how can bone levels be assessed of changes over time?

Answer 7

sequential intraoral radiographs should be placed reproducibly and accurately

Question 8

DPT and periodontal disease: how does it help with diagnosis?

Answer 8

• allows assessment of all teeth & their periodontal support
• can be supplemented with periapical radiographs