NBDHE Practice Test Questions with Certified Solutions
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Course
NBDHE Practice
Institution
NBDHE Practice
NBDHE Practice Test Questions with
Certified Solutions
What is the primary role of dental sealants?
a) To whiten teeth
b) To treat gum disease
c) To prevent cavities in the grooves of the teeth
d) To replace missing teeth
Which bacteria is most commonly associated with periodontal di...
NBDHE Practice Test Questions with
Certified Solutions
What is the primary role of dental sealants?
a) To whiten teeth
b) To treat gum disease
✔✔c) To prevent cavities in the grooves of the teeth
d) To replace missing teeth
Which bacteria is most commonly associated with periodontal disease?
a) Streptococcus mutans
b) Lactobacillus acidophilus
✔✔c) Porphyromonas gingivalis
d) Actinomyces israelii
What does the term "dental prophylaxis" refer to?
1
,a) Tooth extraction
✔✔b) Professional teeth cleaning
c) Placement of dental crowns
d) Root canal therapy
Which part of the tooth is covered by enamel?
a) Root
✔✔b) Crown
c) Dentin
d) Pulp
What is the best method for preventing dental caries?
a) Using mouthwash
b) Brushing only once a day
✔✔c) Brushing twice a day and flossing daily
d) Rinsing with water after every meal
2
,What is the main purpose of fluoride in toothpaste?
a) To whiten teeth
b) To make the toothpaste foamy
✔✔c) To strengthen enamel and prevent cavities
d) To freshen breath
What type of X-ray is used to assess the entire tooth structure from the crown to the root?
a) Bitewing X-ray
b) Panoramic X-ray
✔✔c) Periapical X-ray
d) Occlusal X-ray
Which instrument is used to measure pocket depths around the teeth?
a) Explorer
3
, b) Ultrasonic scaler
✔✔c) Periodontal probe
d) Air-water syringe
What is the most common type of tooth restoration used to repair a cavity?
a) Dental implant
b) Dental bridge
✔✔c) Dental filling
d) Veneer
What is a common symptom of temporomandibular joint (TMJ) disorder?
a) Bad breath
b) Loose teeth
✔✔c) Jaw pain or discomfort
d) Increased tooth sensitivity
4
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