DENTAL HYGIENE PROMETRIC 2, COMPUTER
SIMULATED DENTAL HYGIENE EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALES Q &A 2026 |INSTANT
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1. Which of the following are primary functions of saliva?
A. Lubrication of oral tissues
B. Digestion of carbohydrates
C. Protection against microbial infection
D. Calcium absorption in intestines
Rationale: Saliva helps in lubrication, digestion (via amylase),
and provides antimicrobial action through enzymes and
immunoglobulins. It does not aid in intestinal calcium
absorption.
Correct Answers: A, B, C
2. What is the most common cause of dental caries?
A. Frequent sugar intake
B. High fluoride exposure
C. Poor oral hygiene
D. Tobacco use
,Rationale: Dental caries are primarily caused by acid-producing
bacteria metabolizing fermentable carbohydrates. Fluoride
protects enamel, and tobacco contributes indirectly but is not
the main cause.
Correct Answers: A, C
3. Which of the following techniques are recommended for
plaque removal in interdental areas?
A. Flossing
B. Toothpick use
C. Water irrigation
D. Tongue scraping
Rationale: Interdental cleaning primarily uses flossing or soft
picks. Tongue scraping cleans the tongue, not interdental
spaces.
Correct Answers: A, B, C
4. Common risk factors for periodontal disease include:
A. Smoking
B. Diabetes mellitus
C. High-fat diet
D. Poor oral hygiene
,Rationale: Smoking, diabetes, and inadequate oral hygiene
significantly increase periodontal disease risk. Diet high in fat is
not a direct cause.
Correct Answers: A, B, D
5. The recommended sequence for a dental hygiene
assessment includes:
A. Medical history review
B. Clinical examination
C. Radiographic evaluation
D. Treatment planning
Rationale: Assessment begins with reviewing history, followed
by examination, imaging, and treatment planning.
Correct Answers: A, B, C
6. Which instruments are commonly used for calculus
detection?
A. Explorer
B. Probe
C. Scaler
D. Curette
Rationale: Explorers and probes detect calculus. Scalers and
curettes are used for removal, not detection.
, Correct Answers: A, B
7. Fluoride works primarily by:
A. Remineralizing enamel
B. Killing oral bacteria
C. Inhibiting demineralization
D. Whitening teeth
Rationale: Fluoride strengthens enamel and prevents
demineralization; it is not a whitening agent and has limited
antibacterial effects.
Correct Answers: A, C
8. Effective infection control in a dental setting includes:
A. Hand hygiene
B. Sterilization of instruments
C. Personal protective equipment (PPE)
D. Prescribing antibiotics to patients
Rationale: Infection control relies on hygiene, sterilization, and
PPE. Routine antibiotics are not part of standard infection
control.
Correct Answers: A, B, C
9. Which of the following are signs of gingivitis?