Periapical infection from a mandibular second molar may spread by direct extension to the
1. buccal space.
2. buccal vestibule.
3. sublingual space.
4. submandibular space

Similar questions:

Periapical surgery is
CONTRAINDICATED for a tooth that
has a

vertical root fracture.
NDEB released questions set 1

Which of the following statements is/are true?
1. Radiographs cannot differentiate between infected and non-infected periapical lesions.
2. A definitive diagnosis of an apical lesion cannot be made on radiography alone.
3. Periapical radiolucencies are not always indicative of loss of pulp vitality.
4. A periapical radiograph can be used to locate the buccal bone level.

(1) (2) (3)
NDEB released questions set 1

Which of the following statements is/are true?
1. Radiographs cannot differentiate between infected and non-infected periapical lesions.
2. A definitive diagnosis of an apical lesion cannot be made on radiography alone.
3. Periapical radiolucencies are not always indicative of loss of pulp vitality.
4. A periapical radiograph can be used to locate the buccal bone level.

(1) (2) (3)
NDEB released questions set 1

In teeth with complete pulp necrosis, the periapical area is involved if
1. there is pain to thermal stimuli.
2. there is pain on percussion.
3. the tooth throbs when the patient is lying down.
4. the radiograph shows an apical radiolucency.

(2) and (4)
NDEB released questions set 1

Which of the following could be immediate postoperative complications of periapical surgery?
1. Haemorrhage.
2. Edema.
3. Paresthesia.
4. Pain.
5. Mucocele.

(1) (2) (3) (4)
NDEB released questions set 1

Which of the following is/are associated with an unerupted tooth?
1. Odontogenic adenomatoid tumor.
2. Periapical cemental dysplasia.
3. Calcifying epithelial odontogenic tumor.
4. Cementoblastoma.

(1) and (3)
NDEB released questions set 1

A small, well-circumscribed, periapical radiolucency on a mandibular incisor which is clinically asymptomatic and
responds normally to vitality tests is most likely

periapical cemental dysplasia.
NDEB released questions set 1

A patient complains of acute pain 24 hours after the insertion of a restoration in a tooth with no pre-existing periapical pathology. The tooth is vital and tender to percussion. The radiograph will show

none of the above.
NDEB released questions set 2

A periapical radiolucency can represent a
1. periapical granuloma.
2. radicular cyst.
3. metastatic carcinoma.
4. mental foramen.

All of the above.
NDEB released questions set 2

In the early stage, a periapical abscess can be differentiated from a lateral periodontal abscess by

response of pulp to electrical stimulation.
NDEB released questions set 2

A periapical radiolucency associated with a vital maxillary central incisor can represent a
1. nasopalatine cyst.
2. dentigerous cyst.
3. foramen of the incisive canal.
4. periapical granuloma.

(1) and (3)
NDEB released questions set 2

Which of the following landmarks are recognizable in periapical radiographs of the mandible?
1. External oblique ridge.
2. Coronoid process.
3. Mylohyoid ridge.
4. Mental foramen.
5. Incisive canal.

(1) (3) (4)
NDEB released questions set 2

On a periapical radiograph, what reduction in mineral content must be lost to detect a change?

30-40%.
NDEB released questions part 2 set 2

Among the following, which may be associated with root resorption?
1. Excessive orthodontic forces.
2. Periapical granuloma.
3. Cementoma.
4. Hypercementosis.
5. Traumatic injury.

(1) (2) (5)
NDEB released questions set 2

A well circumscribed 3mm radiolucent lesion is present in the apical region of the mandibular second premolar. The lesion may be
1. a periapical granuloma.
2. a periapical cyst.
3. a chronic periapical abscess.
4. the mental foramen.

(2) and (4)
NDEB released questions set 2