DANB Study Guide 2026
Everything you need to pass the DANB exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 DANB Exam Format at a Glance
📚 DANB Topics to Study (21)
✍️ Sample DANB Questions & Answers
1. Which instrument is used to carve occlusal anatomy in amalgam restorations?
The discoid-cleoid carver is a specialized dental instrument used to precisely shape and refine the occlusal (biting) surface of amalgam restorations. Its discoid end is spoon-shaped for carving broad areas, while the cleoid end is pointed for creating fine anatomical details like grooves and cusps. This helps restore the tooth's natural form and function.
2. The most common irrigant used to disinfect the canal system during root canal therapy is:
Sodium hypochlorite (NaOCl), which is essentially household bleach in a diluted and purified form, is the most widely used irrigant. It is highly effective at dissolving necrotic tissue and killing bacteria within the complex root canal system.
3. Which type of cement is most commonly used to permanently seat a porcelain-fused-to-metal (PFM) crown?
Resin cements are preferred for PFM crowns because they provide strong adhesion, excellent marginal seal, and minimal film thickness.
4. A carious lesion located on the proximal surface of a posterior tooth is classified as:
G.V. Black's Classification system categorizes caries based on location. A Class II lesion involves the proximal (mesial or distal) surfaces of premolars and molars. These restorations often require an occlusal component for access.
5. Topical anesthetics are applied before injections primarily to:
Topical anesthetics numb the superficial mucosal tissue before the injection, reducing the discomfort the patient experiences from needle penetration.
6. Which drug is used during a dental emergency to relieve chest pain caused by angina?
Nitroglycerin is a coronary vasodilator used sublingually to relieve angina by increasing blood flow to the heart muscle.