TheoryFree NEBDN Dental Nurse Practice Test PDF
Download a free NEBDN Dental Nurse practice test PDF with 30 questions, answers and explanations, then continue with online mock exams.
Free NEBDN Dental Nurse PDF with 30 questions
Print it, save it, or use it as a quick cram sheet before taking a timed mock exam.
Download PDF
The PDF includes 30 NEBDN Dental Nurse questions with answers and explanations.
Try NEBDN Dental Nurse questions now
Q1Referring to the image provided, which structure forms the outermost protective layer of the tooth crown?
Show answer
✓ Correct answer: Enamel
Enamel is the highly mineralised surface of the crown, providing resistance against mechanical and chemical damage. Why the other options are incorrect: • Dentine: Dentine lies beneath enamel and is not the outermost surface. • Pulp chamber: The pulp chamber is a deep internal compartment. • Cementum: Cementum coats the root, not the crown. • Periodontal ligament: The periodontal ligament suspends the tooth within its bony socket.
Q2A patient presents with redness and swelling of the tissue that closely encircles the teeth inside the mouth. Which structure is most likely inflamed?
Show answer
✓ Correct answer: Gingiva
The gingiva, commonly called the gums, directly surrounds the teeth and is the tissue most frequently affected by inflammatory conditions such as gingivitis. Why the other options are incorrect: • Hard palate: The hard palate constitutes the bony front section of the roof of the mouth and does not encircle the teeth. • Tongue: The tongue is a muscular organ involved in taste and speech, and it does not surround the teeth. • Buccal mucosa: The buccal mucosa covers the inner surface of the cheeks rather than encircling the teeth. • Soft palate: The soft palate lies at the rear of the oral cavity roof and plays no role in surrounding the teeth.
Q3A dental nurse is asked to polish the cheek-facing surfaces of the upper molar teeth. Which surfaces does this instruction refer to?
Show answer
✓ Correct answer: Buccal surfaces
Buccal surfaces are those that face the cheeks on posterior teeth. Why the other options are incorrect: • Lingual surfaces: Lingual surfaces are directed toward the tongue rather than the cheeks. • Palatal surfaces: Palatal surfaces are specific to upper teeth and face the hard palate, not the cheeks. • Mesial surfaces: Mesial surfaces face toward the midline of the dental arch. • Distal surfaces: Distal surfaces face away from the midline of the dental arch.
Q4Which of the following most accurately describes the mesial surface of a tooth?
Show answer
✓ Correct answer: The surface nearest to the dental midline
The mesial surface is the side of a tooth that faces toward the midline of the dental arch. Why the other options are incorrect: • The surface oriented toward the cheek: The surface facing the cheek is called the buccal surface. • The surface oriented toward the tongue: The surface facing the tongue is called the lingual surface. • The surface farthest from the dental midline: The surface farthest from the midline is called the distal surface. • The biting or chewing surface: The biting or chewing surface is called the occlusal surface.
Q5When charting the upper right first molar using the FDI two-digit system, which number should the dental nurse record?
Show answer
✓ Correct answer: 16
Under the FDI system, quadrant 1 denotes the upper right, and the first molar occupies position 6, making this tooth number 16. Why the other options are incorrect: • 26: 26 identifies the first molar in the upper left quadrant (quadrant 2). • 36: 36 identifies the first molar in the lower left quadrant (quadrant 3). • 46: 46 identifies the first molar in the lower right quadrant (quadrant 4). • 15: 15 designates the second premolar in the upper right quadrant.
Q6Looking at the image provided, which structure houses the tooth's blood vessels and nerve supply?
Show answer
✓ Correct answer: Pulp chamber
The pulp chamber is the hollow core of the tooth containing nerves and blood vessels that maintain tooth vitality. Why the other options are incorrect: • Enamel: Enamel is a non-vital, avascular mineralised tissue. • Dentine: Dentine can transmit stimuli through tubules but does not house the main nerve and blood supply. • Cementum: Cementum is a thin calcified covering on the root surface. • Gingiva: The gingiva is the soft mucosal tissue encircling the tooth at the gum line.
Full NEBDN Dental Nurse bank + unlimited mocks
Try 30 questions free. Unlock the complete NEBDN Dental Nurse question bank, every explanation, and unlimited timed mock exams. Practice on any device.
Unlock NEBDN Dental Nurse →