Question 1

Recapitulation is defined as:

  • [✓] The removal of accumulated debris using a small file at the working length (CORRECT)

  • [ ] Final irrigation before drying the canal

  • [ ] Verifying the master apical file

  • [ ] Confirmation of the obturation length

Question 2

Regarding the smear layer on dentin, the BEST description relevant to bonding is:

  • [ ] It should always be preserved intact because it enhances resin infiltration.

  • [✓] Total‑etch removes it completely; self‑etch systems partially dissolve and incorporate it into the hybrid layer. (CORRECT)

  • [ ] It is absent after enamel beveling and therefore irrelevant.

  • [ ] It is a prerequisite for chemical bonding via MDP–calcium salt formation.

Question 3

Which statement about 'affected' vs 'infected' dentin is MOST correct for selective removal strategies?

  • [ ] Affected dentin is irreversibly denatured and must always be removed to hard dentin.

  • [✓] Affected dentin is partially demineralized but collagen is intact; it can be preserved if a good seal is achieved. (CORRECT)

  • [ ] Infected dentin is dry and hard; it can be left to avoid exposure.

  • [ ] Affected and infected dentin are histologically identical; the distinction is purely semantic.

Question 4

A 5 mm oroantral communication after extraction is best managed initially by:

  • [ ] Immediate primary closure with buccal advancement flap only

  • [ ] Conservative management — sinus precautions and allow secondary closure

  • [✓] Primary closure with buccal or palatal flap and perioperative antibiotics/antrostomy if needed (CORRECT)

  • [ ] Immediate referral for endoscopic sinus surgery

Question 5

Periostat is:

  • [✓] 20 mg capsule of doxycycline hyclate (CORRECT)

  • [ ] 40 mg capsule of doxycycline hyclate

  • [ ] 100 mg capsule of doxycycline hyclate

  • [ ] 200 mg capsule of doxycycline hyclate

Question 6

Which of the following may compromise complete denture retention and stability?

  • [ ] Wide buccal shelf in the mandibular arch

  • [ ] A long gentle slope of the soft palate

  • [✓] A high, v-shaped palatal vault (CORRECT)

  • [ ] Absence of a well-defined mylohyoid ridge

Question 7

Ahmed is 9 years old medically free came with avulsed upper permanent central incisor, knowing that the tooth is kept in milk, and the extra oral dry time is 30 min, the PDL cell are considered:

  • [ ] The PDL cells are most likely viable.

  • [✓] The PDL cells may be viable but compromised. (CORRECT)

  • [ ] The PDL cells are likely to be non-viable.

  • [ ] Extra oral dry time doesn’t affect PDL cells.

Question 8

The INCORRECT statement regarding the dental spaces of primary teeth is:

  • [ ] Primate space are present mesial to the maxillary canines and distal to mandibular canines and used for early mesial shift.

  • [ ] Spacing between primary anterior teeth is commonly and desirable and it is called physiological spacing.

  • [ ] After premature removal of a primary tooth, the maximum amount of space loss occurs in the first 6 months of space closure.

  • [✓] An unerupted premolar usually takes one month to travel through 2 mm of bone. (CORRECT)

Question 9

Which of the following is the primary mechanism of action of most NSAIDs?

  • [ ] Inhibition of phospholipase A2

  • [ ] Irreversible inhibition of COX-1 only

  • [✓] Reversible inhibition of COX-1 and COX-2 (CORRECT)

  • [ ] Blocking leukotriene synthesis

Question 10

"F" and "V" sounds check:

  • [ ] Posterior palatal seal

  • [ ] Centric relation

  • [✓] Incisal edge position (CORRECT)

  • [ ] Vertical freeway space

Question 11

The best implant surface among the following is:

  • [ ] Smooth

  • [ ] Polished

  • [✓] SLA/roughened (CORRECT)

  • [ ] Acid-etched only

Question 12

In intrusive luxation of a primary incisor, management usually involves:

  • [ ] Immediate extraction

  • [ ] Forceful repositioning

  • [✓] Observation for spontaneous reeruption (CORRECT)

  • [ ] Rigid splinting for 6 weeks

Question 13

A 68-year-old woman on IV zoledronic acid for metastatic breast cancer presents with a 1 cm exposed mandible bone after a recent extraction. Best initial management step is:

  • [ ] Immediate surgical debridement and primary closure under general anesthesia

  • [✓] Conservative management with antimicrobial rinses, systemic antibiotics, and limited debridement (CORRECT)

  • [ ] Continue bisphosphonate and observe without intervention

  • [ ] Start high-dose systemic corticosteroids to reduce bone exposure

Question 14

The movement that needs least orthodontic force is:

  • [ ] Extrusive movement.

  • [ ] Rotational movement.

  • [ ] Bodily movement.

  • [✓] Intrusive movement. (CORRECT)

Question 15

Which CBC abnormality is commonly seen in viral infections such as influenza?

  • [ ] Neutrophilia

  • [✓] Lymphopenia (CORRECT)

  • [ ] Lymphocytosis

  • [ ] Thrombocytosis

Last modified: Sunday, 18 October 2026, 7:08 AM