Sample Questions

INBDE Sample Questions

3 practice questions with complete answer explanations.

Sample Questions

Question 1pathology

A 45-year-old patient presents with bilateral mandibular premolars with dark, non-carious cervical lesions. The lesions are hard on probing. Most likely cause?

A.Dental caries

B.Abfraction✓ Correct

C.Erosion

D.Extrinsic staining

Explanation

Non-carious hard lesions at the CEJ in cervical areas of premolars are classic for abfraction (occlusal stress).

Question 2pharmacology

Which local anesthetic has the longest duration of action?

A.Lidocaine 2% with epinephrine 1:100,000

B.Bupivacaine 0.5%✓ Correct

C.Mepivacaine 3%

D.Articaine 4% with epinephrine 1:100,000

Explanation

Bupivacaine has the longest duration of dental anesthetics — up to 7 hours pulpal, 8+ hours soft tissue.

Question 3clinical-management

A patient on warfarin needs an extraction. What is the appropriate management?

A.Stop warfarin 3 days prior

B.Proceed without modification if INR is <3.5✓ Correct

C.Bridge with heparin

D.Administer vitamin K before extraction

Explanation

Current guidelines: don't stop warfarin for simple extractions if INR is therapeutic (<3.5). Use local hemostatic measures.

Test-Taking Tips

1.Use a structured Qbank like Board Vitals or Dental Decks.
2.Review high-yield topics: oral pathology, pharmacology, prosthodontics.
3.Practice clinical case questions — INBDE is more case-based than old NBDE.
4.Don't neglect biostats and behavioral sciences.
5.Take full-length timed practice tests to build endurance.

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