EFDA EFDA Periodontal Procedures & Oral Health 1 — Questions and Answers
Question 1: Which instrument is most commonly used by an EFDA to remove supragingival calculus during a coronal polishing procedure?
- Scaler
- Curette
- Rubber cup with prophy paste (Correct answer)
- Ultrasonic tip
Correct answer: Rubber cup with prophy paste
Coronal polishing uses a rubber cup with prophy paste to remove extrinsic stains and plaque above the gumline.
Question 2: What does a periodontal probe measure?
- Tooth mobility
- Pocket depth around teeth (Correct answer)
- Bone density
- Enamel thickness
Correct answer: Pocket depth around teeth
A periodontal probe is calibrated in millimeters and is used to measure the depth of the sulcus or periodontal pocket.
Question 3: Which condition is characterized by inflammation of the gingiva without loss of attachment?
- Periodontitis
- Gingivitis (Correct answer)
- Pericoronitis
- Necrotizing ulcerative periodontitis
Correct answer: Gingivitis
Gingivitis is reversible gingival inflammation limited to the soft tissue without bone or attachment loss.
Question 4: What is the normal sulcus depth in a healthy adult?
- 0–1 mm
- 1–3 mm (Correct answer)
- 4–5 mm
- 6–8 mm
Correct answer: 1–3 mm
A healthy gingival sulcus measures 1–3 mm; depths greater than 3 mm may indicate periodontal disease.
Question 5: Which of the following is a sign of healthy gingival tissue?
- Spongy texture with bleeding on probing
- Coral-pink color with stippled surface (Correct answer)
- Bright red, swollen margins
- Rolled margins with exudate
Correct answer: Coral-pink color with stippled surface
Healthy gingiva is typically coral-pink, firm, stippled (like an orange peel), and does not bleed on probing.
Question 6: Which type of plaque is most strongly associated with periodontal disease?
- Supragingival plaque
- Subgingival plaque (Correct answer)
- Food debris
- Acquired pellicle
Correct answer: Subgingival plaque
Subgingival plaque, located below the gumline, harbors anaerobic bacteria most responsible for periodontal destruction.
EFDA EFDA Periodontal Procedures & Oral Health 1
Which instrument is most commonly used by an EFDA to remove supragingival calculus during a coronal polishing procedure?