DMD Study Guide 2026

Everything you need to pass the DMD 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.

📋 DMD Exam Format at a Glance

400
Questions
480 min
Time Limit
75%
Passing Score

📚 DMD Topics to Study (21)

✍️ Sample DMD Questions & Answers

1. Which endodontic complication involves perforation of the root during instrumentation?
Strip perforation

Strip perforation occurs in curved canals when over-instrumentation removes too much dentin on the inner curve, creating a lateral communication with the periodontal ligament.

2. Which ethical principle is most directly applicable to documentation standards?
Beneficence — acting in the patient's best interest

Beneficence, the principle of acting in the patient's best interest, is fundamental to ethical practice in documentation standards.

3. What is an inlay used for?
To restore a cavity within the cusps

An inlay is a custom-made restoration used to repair a cavity or damage that lies within the cusps (the chewing surfaces) of a tooth, without extending to the outer surfaces. It is fabricated outside the mouth and then cemented into place, offering a more durable and precise restoration than a direct filling for moderate decay.

4. What is the primary use of dental radiographs?
To diagnose hidden dental conditions

Dental radiographs, commonly known as X-rays, are indispensable diagnostic tools in dentistry. They allow practitioners to visualize structures and conditions that are not visible during a routine clinical examination, such as hidden cavities between teeth, bone loss, impacted teeth, infections, and other abnormalities within the jawbones. This enables early detection and accurate diagnosis of various dental issues, leading to effective treatment planning.

5. What is the first step in the diagnostic process for a dental patient?
Patient history review

The initial step in the diagnostic process is always to gather a comprehensive patient history. This includes medical, dental, and social histories, which provide crucial context about the patient's overall health, previous dental issues, medications, and lifestyle factors. This information guides the subsequent clinical examination and helps in forming an accurate diagnosis and safe treatment plan.

6. Which evidence-based approach is most important when applying diagnostic procedures principles?
Integrating current research with clinical expertise and patient values

Evidence-based practice in ${subj.toLowerCase()} requires integrating current research findings with clinical expertise and individual patient values.

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1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation