Normal Radiographic Anatomy

Cementum can be seen in a periapical x-ray

• True

• False

The densest tooth structure that appears most RO is ...

• Enamel

• Dentin

• PDL

• Cementum

Loss of continuity of lamina dura at the apex indicates ...

• periodontal disease

• periapical pathology

• caries

Loss of continuity of lamina dura at the alveolar crest indicates ...

• periodontal disease

• periapical pathology

• caries

Distance between CEJ and the alveolar crest is ...

• 0.5-1 mm

• 1.5 - 2mm

• 3 mm

• 1 mm

The cancellous bone pattern in the maxilla is ...

• honeycomb appearance

• ladder appearance

• circular appearance

The cancellous bone pattern in the mandible is ...

• honeycomb appearance

• ladder appearance

• circular appearance

The structure pointed at by the arrow is ...

• intermaxillary suture

• anterior nasal spine

• incisive foramen

• zygomatic process

The structure pointed at by the arrow is ...

• intermaxillary suture

• anterior nasal spine

• incisive foramen

• nasal foassa

The structure pointed at by the arrow is ...

• intermaxillary suture

• anterior nasal spine

• incisive foramen

• nasal foassa