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NBDHEBlogArticle

How Many Hours Should You Spend Studying for the NBDHE

Find out how many hours you should spend studying for NBDHE. Learn ideal study time, daily schedules, and tips to prepare effectively for the exam.
Storyteller Sheryn Villarey
By Sheryn Villarey
Last updated: April 15th, 2026

I. Why Study Time Matters for the NBDHE

Preparation for the National Board Dental Hygiene Examination (NBDHE) can be overwhelming for many students, especially when juggling dental hygiene school and other commitments. The most common question that students ask is: How many hours should I study? While there is no one-size-fits-all answer, understanding realistic study commitment expectations and how to structure your time can significantly improve your study efficiency and improve your chances of success.

In this article, we will break down recommended study hours, key factors that may influence your preparation time, and common mistakes to avoid. For many students, it becomes easy to fall into the habit of cramming prior to the board exams. However, steady preparation is key - consistent and structured study time directly impacts exam performance. This general guide is to ensure that dental hygiene students preparing for the NBDHE can develop a confident approach.

Pro-Tip: A structured approach directly impacts your success, and many students find this in an NBDHE Tutor. For tips to find the best NBDHE Tutor, visit link.

II. Average Study Hours for NBDHE Preparation

While there are no formal statistics on the recommended average number of study hours, successful dental hygiene students, tutoring programs, and dental hygiene instructors report that 300 to 400 total hours is recommended. Be aware that this is spread out over several months and this range allows adequate time to review content, practice questions, and reinforce weak areas without burnout. However, depending on your familiarity with the content, you may find that you require less time in your NBDHE preparation.

III. How Many Hours Should You Study per Day

For an average of 300 to 400 hours of NBDHE preparation, the studying schedule typically looks like:

  • 3-4 months of preparation
  • 2-4 hours per day
  • 5-6 days per week

For students balancing other commitments, consistency matters more than cramming. Studying fewer hours regularly is far more effective than sporadic long sessions.

To structure your study sessions, it also helps to understand the exam format. Visit this link for more information about the NBDHE formatting and exam schedule.

IV. Factors That Affect How Long You Should Study

Your ideal study time will depend on several individual factors. Understanding these will help you create a realistic and personalized study plan.

Recently Graduated From Dental Hygiene School

Students writing the NBDHE immediately after dental hygiene school may require fewer hours than those who graduated months or years ago. Recently completed courses on topics such as radiology lectures, periodontal therapy, and oral pathology are still fresh, reducing overall review time.

Study Tools

Depending on the study resources that are available to you, this may affect the overall preparation time. While free online resources may be available, practice tests are often a paid resources which are important resources to have in your preparation. Simply reviewing topics covered may demand less hours than reviewing concepts while practicing questions. Additionally, you may consider hiring an NBDHE tutor who is an expert on topics covered in the board exams and may provide the right study tools while customizing your study plan to your needs. You might also find that finding the right study group can help you through tough concepts or remind you of other lectures you need to cover - for example, with classmates discussing lectures that are unfamiliar to you, it can serve as a reminder to go back and add that subject to your review. However, joining more study groups can prove to be more of a distraction than an effective resource.

If you are a foreign-trained dental hygienist or dentist and are considering writing the NBDHE, you may find that your preparation experience may differ from that of traditional students - this may include additional preparation to fulfill English proficiency requirements.

Pro-Tip: Click here for more information for foreign-trained dentists or dental hygienists applying for the NBDHE.

Individual Learning Style

Some dental hygiene students learn best through structured programs such as paid resources or with an NBDHE tutor, while others prefer free online courses, flashcards, or study groups. Some may even choose a resource with hands on learning provided. While these are excellent tools, it is important to choose the right study format since this can lead to studying efficiently and reduce the total hours needed. Additionally, if you're strong in clinical concepts but find that case-based questions are tricky topics to master, you may need extra time practicing application rather than memorization.

With that being said, if you do choose to proceed with an NBDHE tutor, ensure you find the right one for you. A qualified NBDHE tutor often has experience in the clinical side and are able to provide mentorship. A good NBDHE tutor loves mentoring upcoming hygienists and will work hard to get you on the right track to success.

V. Example Study Schedules for NBDHE Preparation

A structured plan helps you to focus, keeps motivation high, and improves concentrated study time. Note that the provided study plans are more general guides to help you in creating a more tailored study plan that is best for you.

8-week Balanced Plan

A balanced 8-week plan might look like:

  • 10-15 hours per week
  • Content review on weekdays
  • Practice questions and case studies on weekends
  • One lighter day for rest or catch-up

4-week Intensive Plan

If you're on a time crunch, here is an intensive 4-week plan:

  • 15-20 hours per week
  • Daily practice questions and case studies with review of incorrect questions
  • Content review on weekdays
  • Full length practice tests on Saturday with corresponding review on Sunday

12-week Gradual Plan

For a more gradual 12-week plan:

  • 10 hours per week
  • Content review on weekdays
  • Alternate practice questions and case studies on weekends
  • One light day for rest or catch-up
  • Consider joining a study group

There is much flexibility when planning your study time. Ensure that your plan is tailored to your schedule and needs to avoid early burnout.

VI. Common Mistakes When Studying for NBDHE

Even highly motivated students can fall into ineffective study patterns. Avoid these common pitfalls.

I. Overstudying without direction

More hours don't necessarily mean better results. Studying without a plan can lead to burnout and poor retention. The most important factors in your preparation are structured study plans with appropriate allocation of time to learning concepts and practicing NBDHE-type questions and case-based questions.

II. Ignoring weak areas

It's tempting to focus on familiar topics but skipping difficult subjects can hurt your overall score. There is a vast array of concepts that students need to have a firm grasp on in order to succeed. Ensure that you are covering as much as possible during your studies.

III. Not practicing patient case-based questions

The NBDHE heavily emphasizes clinical application. While focusing on memorization techniques to answer questions, the application of your knowledge to case-based questions is an important part of the exam.

IV. Studying alone without a study group

Engaging with dental hygiene instructors, mentors, or even being an active participant in supportive study groups can be extremely helpful when tackling complex topics. While study groups can be beneficial, they can also become a distraction if people aren't already prepared. The best study groups come together to discuss material and talk through challenging questions, not to learn concepts for the first time.

V. Being unfamiliar with the format of the NBDHE

We highly recommend that students become familiar with how the NBDHE is structured along with the number of questions that will be on the exam. This allows students to have the right mindset going into the day of the exam and avoid unexpected surprises.

Pro-Tip: NBDHEBooster provides a full breakdown of the NBDHE format here.

VI. Not having a positive mindset

Mindset is one of the most important factors for success, but it's also one of the least recognized. It's easy to be discouraged when you're unable to achieve high scores quickly. But just remember that preparation for the NBDHE is a marathon. Consistency, along with a positive mindset it key to helping you in your success.

VII. How to Know If You're Ready for the Exam

It may be difficult to gauge your readiness for the NBDHE, but here are some factors that will indicate that you are heading in the right direction:

  • You are able to discuss tricky topics and core clinical concepts
  • You are confidently selecting the correct answers for patient case interpretations
  • You have a firm grasp on ethics, infection control, and community health
  • You are able to apply clinical insights to real-world experiences

When you're anxiously preparing to take the NBDHE, it can be all too easy to get bogged down with studying and forget about the light at the end of the tunnel: making a difference in people's lives through meaningful work. Soon you'll be able to educate patients and guide them to become active participants in their oral health and support good hygiene habits.

VIII. How Long Do Top Scorers Study for the NBDHE

Although some successful candidates report studying up to 300 to 400 hours, it may be more realistic for some candidates to study for a total of 100 to 200 hours. The key isn't just the number of hours but how strategically you use them. With a structured plan, consistent effort, and the right tools, passing the NBDHE is absolutely achievable.

IX. FAQ

Q: How many total hours should I study for the NBDHE?

A: Most dental hygiene students who pass the NBDHE report studying approximately 300 to 400 total hours. This is typically spread over 3 to 4 months, allowing time for content review, practice questions, and reinforcement of weaker areas. However, the exact number of hours needed depends on factors such as how recently you graduated, your academic strengths, and your test-taking confidence.

Q: Is it better to study a few hours every day or longer sessions?

A: Studying a few focused hours consistently each day is generally more effective than infrequent, long study sessions. Regular daily study helps with information retention, reduces burnout, and allows concepts to build over time. Short structured sessions with active learning tend to produce better results than marathon study days. You should plan to study the amount that will not exceed the burnout point of your daily brain capacity.

Q: Can I pass the NBDHE if I study for only one month?

A: While it is possible, passing the NBDHE with only one month of preparation is challenging and often requires a very strong academic foundation, minimal time away from dental hygiene school, and the ability to study several hours per day consistently. Most students benefit from a longer study timeline to avoid stress, improve retention, and fully prepare for the exam.

Q: How can I improve my study efficiency?

A: To study more efficiently:

  • Use active recall instead of passive reading
  • Focus on practice questions and clinical scenarios early
  • Practice tests under timed conditions for stamina and familiarity with the exam format
  • Identify weak and tough topics and prioritize them
  • Study in timed blocks (60-90 minutes) with short breaks. We recommend using a timer for focused study sessions while limiting distractions
  • Review incorrect answers carefully to understand reasoning

The quality of the study is more important than the total amount of hours spent. With the right tools, support systems, and mindset, you'll pass your boards with flying colors and be working with patients and working alongside doctors before you know it.

Q: What should I do if I feel burned out during preparation?

A: Burnout is common during NBDHE preparation. If you start feeling overwhelmed:

  • Take a short break or schedule a lighter study day
  • Rotate subjects to keep studying fresh
  • Every time you get a question correct, write them down to keep track of your success
  • Ensure you're getting adequate sleep, nutrition, and movement
  • Reassess your study plan and adjust unrealistic expectations

Remember that rest and a positive mindset is part of effective studying. Taking care of yourself can actually improve performance and retention. Additionally, you can study day and night for weeks, but if you walk into the exam thinking you're going to fail, you're doing yourself a great disservice. Mindset is one of the most important factors for success. Preparation for the NBDHE is tough, but with hard work, the outcome will be extremely rewarding!

Final Thoughts

Consistency is key, and by the time you step into the exam room, your planning and preparing will certainly help you succeed, so you can take a deep breath and relax into the rhythm of answering questions that you have studied hard. Instead of letting yourself overload with anxiety or stress, tell yourself that you're excited to take the next step in becoming a dental hygienist to help patients and help them in their own journey towards optimal oral health!

About the Author
Hello! My name is Sheryn, and I graduated with a DDS from the University of Alberta and will be completing a general practice residency. I started my dental journey with Booster Prep’s DATCrusher and I hope to provide meaningful help to others who are just starting their journey! My hobbies include traveling on a budget whenever the opportunity comes and watching reruns of The Office.
Author Sheryn Villarey
Sheryn Villarey
Doctor of Dental Surgery, University of Alberta