DHN 101 – Full Practice Final
ExamLatest Update 2026/2027|
Already Graded A+
Instructions
● Choose the best answer unless it says Select All That Apply (SATA)
● Don’t scroll ahead for answers—attempt first
Section A: Core Concepts
Q1
The primary role of a dental hygienist is to:
A. Diagnose systemic diseases
B. Prevent oral disease and promote health
C. Perform oral surgery
D. Prescribe antibiotics
Q2
Which structure protects the tooth crown?
A. Dentin
B. Pulp
C. Enamel
D. Cementum
Q3
Which factor contributes MOST to plaque formation?
A. Water intake
B. Bacterial accumulation
C. Exercise
D. Sunlight
, Q4
What is the earliest sign of gum disease?
A. Tooth mobility
B. Gingival bleeding
C. Bone loss
D. Tooth loss
Q5
Which index measures oral hygiene status?
A. BMI
B. OHI-S
C. BP
D. RBC
Section B: Oral Disease & Prevention
Q6
Dental caries is caused primarily by:
A. Viruses
B. Bacteria metabolizing sugars
C. Trauma
D. Genetics only
Q7
Which food increases caries risk MOST?
A. Cheese
B. Apples
C. Sticky candy
D. Meat
Q8
Fluoride’s main action is to:
A. Destroy enamel
ExamLatest Update 2026/2027|
Already Graded A+
Instructions
● Choose the best answer unless it says Select All That Apply (SATA)
● Don’t scroll ahead for answers—attempt first
Section A: Core Concepts
Q1
The primary role of a dental hygienist is to:
A. Diagnose systemic diseases
B. Prevent oral disease and promote health
C. Perform oral surgery
D. Prescribe antibiotics
Q2
Which structure protects the tooth crown?
A. Dentin
B. Pulp
C. Enamel
D. Cementum
Q3
Which factor contributes MOST to plaque formation?
A. Water intake
B. Bacterial accumulation
C. Exercise
D. Sunlight
, Q4
What is the earliest sign of gum disease?
A. Tooth mobility
B. Gingival bleeding
C. Bone loss
D. Tooth loss
Q5
Which index measures oral hygiene status?
A. BMI
B. OHI-S
C. BP
D. RBC
Section B: Oral Disease & Prevention
Q6
Dental caries is caused primarily by:
A. Viruses
B. Bacteria metabolizing sugars
C. Trauma
D. Genetics only
Q7
Which food increases caries risk MOST?
A. Cheese
B. Apples
C. Sticky candy
D. Meat
Q8
Fluoride’s main action is to:
A. Destroy enamel
