DMD DMD Oral Surgery and Periodontics 1 — Questions and Answers
Question 1: Which suture technique is most commonly used to close a simple extraction socket?
- Figure-eight suture (Correct answer)
- Interrupted suture
- Continuous sling suture
- Mattress suture
Correct answer: Figure-eight suture
The figure-eight suture is the most common technique for closing an extraction socket as it approximates the buccal and lingual flaps securely.
Question 2: What is the primary indication for performing an alveoloplasty?
- To smooth sharp bony edges after extraction to facilitate prosthetic fit (Correct answer)
- To remove a periapical cyst
- To expose an impacted tooth for orthodontic traction
- To treat periodontal bone loss
Correct answer: To smooth sharp bony edges after extraction to facilitate prosthetic fit
Alveoloplasty is performed to recontour and smooth alveolar bone ridges to optimize denture adaptation and patient comfort.
Question 3: Which classification system is used to describe the position of impacted mandibular third molars?
- Pell and Gregory classification (Correct answer)
- Miller classification
- Angle classification
- Black classification
Correct answer: Pell and Gregory classification
The Pell and Gregory classification system categorizes impacted mandibular third molars based on their relationship to the ramus and the occlusal plane.
Question 4: The 'dry socket' (alveolar osteitis) most commonly occurs within how many days after extraction?
- 1–3 days
- 3–5 days (Correct answer)
- 7–10 days
- 10–14 days
Correct answer: 3–5 days
Alveolar osteitis typically presents 3–5 days post-extraction when the blood clot is prematurely lost or dissolves.
Question 5: Which nerve block is used to anesthetize the mandibular premolars and anterior teeth without anesthetizing the lower lip?
- Mental nerve block (Correct answer)
- Inferior alveolar nerve block
- Buccal nerve block
- Gow-Gates block
Correct answer: Mental nerve block
The mental nerve block anesthetizes the lower premolars and anterior teeth through the mental foramen without causing lower lip numbness from lingual/inferior alveolar involvement.
Question 6: What is the furcation involvement classification when the probe enters the furcation but does not pass through?
- Class I
- Class II (Correct answer)
- Class III
- Class IV
Correct answer: Class II
Class II furcation involvement means the probe penetrates into the furcation area but does not pass through to the other side.
DMD DMD Oral Surgery and Periodontics 1
Which suture technique is most commonly used to close a simple extraction socket?