NDAEB Exam – Sample Questions

NDAEB Sample Questions

1. A mother of a 5-month-old infant ask the dental assistant which of her daughter's teeth will fall out first. What is the most accurate response?

1. Her upper two teeth, the frontal incisors

2. Her bottom two teeth, the central incisors

3. Her two canine teeth will fall out first

4. Her primary molars

2. Which of the following produces about 60% of the total amount of saliva?

1. Sublingual gland

2. Parotid gland

3. Submandibular glands

4. None of the options

3. Which of the following muscles of the mouth floor raises the hyoid bone to assist in swallowing?

1. Digastric

2. Stylohyoid

3. Geniohyoid

4. Mylohyoid

4. This instrument is used to prepare the tooth and plane the walls and floors of the tooth preparation with a push-pull action:

1. Spatula

2. Condensers

3. Hatchet

4. Hoe

5. What handpiece would be used for the removal of bonding materials from a tooth surface after orthodontic appliances are removed?

1. Air abrasion handpiece

2. Laboratory handpiece

3. Ultrasonic handpiece

4. Laser handpiece

6. If a patient's anterior teeth are positioned too far back on the bite-block, these teeth will appear out of focus on the radiograph. What would be the solution for this?

1. Instruct the patient to stand as tall as possible with a straight back

2. Position the patient so that the anterior teeth are placed in an end-to-end position in the groove on the bite-block

3. Position the patient so that the Frankfort plane is parallel to the floor

4. Position the patient so that the midsagittal plane is parallel to the floor

7. As a dental assistant, which of the following task would be assigned to you during the making of a cast restoration?

1. Taking the preliminary impressions

2. Assist in the series of patient appointments

3. Fabricate and temporarily cement the provisional coverage

4. All of the above

8. After periodontal surgery, what instructions should be given regarding rinsing?

1. The patient can rinse their mouth when returning home

2. The patient can rinse their mouth after 6 hours after surgery

3. The patient should not rinse their mouth for 12 hours

4. The patient should not rinse their mouth for 24 hours

9. The following are non-absorbable suture materials, except:

1. Silk

2. Polyester fibre

3. Nylon

4. Polyglactin 910

10. Which of the following is true regarding the method of polymerization?

1. Light-cured require a base and a catalyst

2. Light-cured is a one-step delivery system

3. Self-cured materials do not require mixing

4. Self-cured sealants are used more widely than light-cured sealants

11. A patient has completed oral surgery. What type of diet recommendation would the dental assistant advise the patient to avoid?

1. Spicy foods

2. Hot pasta

3. Soft foods

4. All of the above

12. What type of dental base is placed in a deep cavity preparation to protect the tooth from thermal shock?

1. Protective base

2. Sedative base

3. Insulating base

4. Enhanced base

13. Bruxism is a contraindication to which of the following dental procedure?

1. Removable prosthesis

2. Fixed prosthesis

3. Bridge

4. Dental implants

14. During a periodontal examination, an assessment of the gingival recession would be completed. If gingiva recedes, it will leave portions of the roots of the teeth exposed below the:

1. Dentinoenamel junction

2. Cementoenamel junction

3. Mucogingival junction

4. None of the above

15. Which of the following would be an indication for oral and maxillofacial surgery?

1. Closure of diastema

2. Medium-sized cavities in the posterior teeth

3. Removal of root fragments

4. Suitable abutment teeth are present

16. Three days after oral and maxillofacial surgery, a patient informs the dentist of extreme pain radiating to the side of the face. The following reasons would have caused alveolar osteitis (dry socket) within the first 24 hours, except:

1. Drinking from a straw

2. Mouth breathing

3. Sneezing

4. Coughing

17. Which of the following statements by the dental assistant to a patient to undergo endodontic treatment is appropriate?

1. There will not be any pain having a root canal

2. All root canals are successful

3. Once the root canal is completed, the tooth will last forever

4. None of the above

18. Which of the following final impression material is easy material to mix, a short mixing time of 30-45 seconds and similar setting time of roughly 7 minutes:

1. Polysulfide and addition silicone

2. Addition silicone and condensation silicone

3. Condensation silicone and Polyether

4. Polyether and addition silicone

19. What FDI number is the lower right second premolar?

1. FDI tooth 35

2. FDI tooth 36

3. FDI tooth 45

4. FDI tooth 46

20. If a patient records are considered inactive, when was the last time the patient visited the dental office?

1. Over 2 years

2. Over 3 years

3. Over 5 years

4. Over 7 years

NDAEB Exam – Sample Questions

NDAEB Sample Questions

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