Violation

The apical region of a non-vital tooth with a deep carious lesion may radiographically show 1. widening of the periodontal space. 2. loss of lamina dura. 3. a circumscribed radiolucency. 4. calcification of the periodontal membrane

(1) (2) (3)

(1) and (3)

(2) and (4)

(4) only

All of the above.

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