NBDHE Dental Hygienist Practice Test
Questions with Verified Answers
What is the primary purpose of using a dental mirror during an examination?
a) To apply fluoride
✔✔b) To provide indirect vision and reflect light
c) To scale tartar from teeth
d) To take X-rays
Which type of dental material is commonly used for filling cavities?
a) Dental amalgam
b) Composite resin
✔✔c) Both a and b
d) Dental cement
What does the term "periodontal" refer to in dentistry?
1
,a) Teeth alignment
b) Tooth whitening
✔✔c) The structures surrounding and supporting the teeth
d) Dental implants
Which of the following is a common symptom of gingivitis?
a) Tooth sensitivity
b) Bad breath
c) Tooth discoloration
✔✔d) Swollen and bleeding gums
What is the primary function of a bitewing X-ray?
a) To evaluate the jawbone
b) To visualize the root canals
✔✔c) To detect cavities between the teeth
d) To assess the position of dental implants
2
,What is the main ingredient in toothpaste that helps prevent cavities?
a) Sodium lauryl sulfate
b) Calcium carbonate
✔✔c) Fluoride
d) Baking soda
Which type of dental instrument is used for root canal therapy?
a) Dental explorer
b) Ultrasonic scaler
✔✔c) Endodontic files
d) Prophy cup
What is a common cause of bad breath (halitosis)?
a) Tooth sensitivity
3
, b) Dental caries
c) Gum recession
✔✔d) Bacterial buildup on the tongue and teeth
What is the recommended brushing technique for effective plaque removal?
a) Scrubbing back and forth
b) Brushing in a circular motion
✔✔c) Using short, gentle strokes
d) Brushing only the front teeth
Which dental condition is characterized by the loss of bone around the teeth?
a) Gingivitis
✔✔b) Periodontitis
c) Dental caries
d) Oral thrush
4
Questions with Verified Answers
What is the primary purpose of using a dental mirror during an examination?
a) To apply fluoride
✔✔b) To provide indirect vision and reflect light
c) To scale tartar from teeth
d) To take X-rays
Which type of dental material is commonly used for filling cavities?
a) Dental amalgam
b) Composite resin
✔✔c) Both a and b
d) Dental cement
What does the term "periodontal" refer to in dentistry?
1
,a) Teeth alignment
b) Tooth whitening
✔✔c) The structures surrounding and supporting the teeth
d) Dental implants
Which of the following is a common symptom of gingivitis?
a) Tooth sensitivity
b) Bad breath
c) Tooth discoloration
✔✔d) Swollen and bleeding gums
What is the primary function of a bitewing X-ray?
a) To evaluate the jawbone
b) To visualize the root canals
✔✔c) To detect cavities between the teeth
d) To assess the position of dental implants
2
,What is the main ingredient in toothpaste that helps prevent cavities?
a) Sodium lauryl sulfate
b) Calcium carbonate
✔✔c) Fluoride
d) Baking soda
Which type of dental instrument is used for root canal therapy?
a) Dental explorer
b) Ultrasonic scaler
✔✔c) Endodontic files
d) Prophy cup
What is a common cause of bad breath (halitosis)?
a) Tooth sensitivity
3
, b) Dental caries
c) Gum recession
✔✔d) Bacterial buildup on the tongue and teeth
What is the recommended brushing technique for effective plaque removal?
a) Scrubbing back and forth
b) Brushing in a circular motion
✔✔c) Using short, gentle strokes
d) Brushing only the front teeth
Which dental condition is characterized by the loss of bone around the teeth?
a) Gingivitis
✔✔b) Periodontitis
c) Dental caries
d) Oral thrush
4
