General Dentistry Question Bank

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1. Most used sugar substitute:

Xylitol is a widely used sugar substitute that is non-cariogenic and may reduce Streptococcus mutans levels.

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2. Follow up of RCT after 3 years , RC failed best treatment is to:

A root canal that has failed at 3-year follow-up is best managed by non-surgical retreatment (redo the RCT) before considering surgery.

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3. acute abscess is:

An acute abscess is a localized cavity/collection containing pus (neutrophils, dead cells, bacteria and exudate) within tissue, formed by acute suppurative inflammation.

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4. The aim of biomechanical process during endo is to allow:

The aim of biomechanical (chemo-mechanical) preparation in endodontics is to allow debridement and irrigant/medicament to reach and clean the apical area.

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5. The aim of treatment maintenance is:

The aim of treatment maintenance (follow-up) is to prevent secondary infection and monitor healing; the keyed answer is prevention of secondary infection.

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6. the retainer of rubber dam

A rubber dam retainer (clamp) should have four-point contact, two buccal and two lingual, seated below the height of contour without rocking, ensuring stable, atraumatic retention. So option a.

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7. in registering the vertical dimension of occlusion for the edentulous pt, the physiological rest position:

The physiologic rest position must always be greater than the vertical dimension of occlusion, the difference being the interocclusal (freeway) space.

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8. Hypercementosis and ankylosis is seen in

Hypercementosis and ankylosis (and a 'cotton-wool' bone pattern) are seen in Paget disease of bone.

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9. years patient come with untreared truma to tooth that became yellow in colour what you shoul tell the parents

Yellowish discoloration of a traumatized young tooth indicates pulp canal calcification (obliteration) rather than necrosis; parents should be told the pulp is calcifying.

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10. The infection will spread cervically in infection from

Infection from the lower second and third molars can spread to the sublingual and submandibular spaces; the keyed answer reflects spread from the lower posterior molars.