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NBDHE Part I (NBDHE Part A) Practice Tests & Test Prep by Exam Edge


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NBDE NBDHE Part A Practice Test Features

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Check out our National Board Dental Hygiene Examination FAQs to learn more about the exam, Our NBDE practice tests, and other information to help you succeed.

Our NBDE practice exams are designed to help you master both the subject matter and the art of test-taking. Created to mimic the real exam, Our NBDE practice tests feature:

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  • 5 online practice exams - That's 500 unique questions


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National Board Dental Hygiene Examination Sample Test

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check all answers that apply

The sphenoid bone houses the: 







Correct Answer:
superior orbital fissure


the sphenoid bone, one of the seven bones that make up the human skull, plays a crucial role in supporting the structures of the face and cranium. its complex shape and strategic location help anchor multiple cranial bones and provide a protective structure for vital neural pathways.

located at the base of the skull, just in front of the temporal bones and basilar part of the occipital bone, the sphenoid bone consists of a central body and multiple protrusions, including the greater and lesser wings and the pterygoid processes. this bone is not only integral to the structure of the skull but also houses several important foramina, which are openings that allow the passage of nerves and blood vessels.

among these foramina, the foramen ovale is particularly significant as it allows the passage of the mandibular division of the trigeminal nerve (cranial nerve v), which is crucial for sensation in the face and motor functions such as chewing. the foramen rotundum, another vital opening, permits the maxillary branch of the trigeminal nerve to pass through, facilitating sensory input from the midfacial region.

additionally, the sphenoid bone contains the foramen spinosum, through which the middle meningeal artery, a branch of the maxillary artery, enters the cranium. this artery is essential for supplying blood to the meninges, the layers of tissue covering the brain and spinal cord.

the superior orbital fissure, a slit-like opening between the greater and lesser wings of the sphenoid, also plays a critical role. it serves as a conduit for several important structures, including cranial nerves iii (oculomotor), iv (trochlear), and vi (abducens), which are responsible for eye movements. additionally, it transmits part of the trigeminal nerve (the ophthalmic division) and the superior ophthalmic vein, further underscoring the sphenoid bone's role in supporting both neural and vascular elements related to the orbit.

understanding these features of the sphenoid bone highlights its importance not only in the structural integrity of the skull but also in the protection and function of critical neural pathways that affect sensory and motor capabilities in the face and eyes. this in-depth knowledge of the sphenoid bone’s anatomy is essential for medical professionals, particularly those in fields such as neurology, ophthalmology, and maxillofacial surgery.


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Why should I use Exam Edge to prepare for the National Board Dental Hygiene Examination Exam?


FAQ's for Exam Edge National Board Dental Hygiene Examination practice tests


We have ten great reasons why Exam Edge is the #1 source on the internet when it comes to preparing for National Board Dental Hygiene Examination test:
  • Comprehensive content: Exam Edge's National Board Dental Hygiene Examination practice tests are created specifically to prepare you for the real exam. All our NBDHE Part I practice test questions parallel the topics covered on the real test. The topics themselves are covered in the same proportions as the real test too, based on outlines provided by the National Board Dental Exam in their NBDHE Part I test guidelines.

  • Realistic practice: Our NBDHE Part I practice exams are designed to help familiarize you with the real test. With the same time limits as the real exam, Our NBDE practice tests enable you to practice your pacing and time management ahead of test day.

  • Detailed explanations: As you complete your practice tests, we show you which questions you answered correctly and which ones you answered incorrectly, in addition to providing you with detailed step-by-step explanations for every single National Board Dental Hygiene Examination practice exam question.

  • Performance insights: After you complete a practice test, we provide you with your raw score (how many you answered correctly) and our estimate of the NBDHE Part I score you would have received if you had taken the real test.

  • Ease of access: Because all Our NBDE practice tests are web-based, there is no software to install. You can take NBDHE Part I practice exams on any device with access to the internet, at any time.

  • Flexible use: If you must pause while taking one of Our NBDE practice exam, you can continue right where you left off. When you continue the test, you will start exactly where you were, and with the same amount of time you had remaining.

  • Thousands of unique questions: We offer 5 different online practice exams with 500 unique questions to help you prepare for your National Board Dental Hygiene Examination !

  • Low cost: The cost of ordering 5 practice tests is less than the cost of taking the real NBDHE Part I test. In other words, it would be less expensive to order 5 practice tests than to retake the real National Board Dental Hygiene Examination exam!

  • Our trusted reputation: As a fully accredited member of the Better Business Bureau, we uphold the highest level of business standards. You can rest assured that we maintain all of the BBB Standards for Trust.

  • Additional support: If you need additional help, we offer specialized tutoring. Our tutors are trained to help prepare you for success on the National Board Dental Hygiene Examination exam.

What score do I need to pass the NBDHE Part I Exam?

To pass the National Board Dental Hygiene Examination test you need a score of 75.

The range of possible scores is 49 to 99.

How do I know the practice tests are reflective of the actual National Board Dental Hygiene Examination ?

At Exam Edge, we are proud to invest time and effort to make sure that Our NBDE practice tests are as realistic as possible. Our practice tests help you prepare by replicating key qualities of the real test, including:

  • The topics covered
  • The level of difficulty
  • The maximum time-limit
  • The look and feel of navigating the exam
We have a team of professional writers that create our National Board Dental Hygiene Examination practice test questions based on the official test breakdown provided by the National Board Dental Exam. We continually update our practice exams to keep them in sync with the most current version of the actual certification exam, so you can be certain that your preparations are both relevant and comprehensive.

Do you offer practice tests for other National Board Dental Exam subjects?

Yes! We offer practice tests for 4 different exam subjects, and there are 20 unique exams utilizing 2000 practice exam questions. Every subject has a free sample practice test you can try too!
National Board Dental Examination, Part I (NBDE Part I ® ) Practice Tests
National Board Dental Examination, Part II (NBDE Part II ® ) Practice Tests
National Board Dental Hygiene Examination (NBDHE Part A ® ) Practice Tests
National Board Dental Hygiene Examination Part B (NBDHE Part B ® ) Practice Tests

To order tests, or take a sample test, for a different subject: Click on ' Name on the Exam Name' You will be take to the orders page

How do I register for the real National Board Dental Exam?

For up-to-date information about registration for the National Board Dental Exam, refer to the National Board Dental Exam website.