ORE Part 2 Oral Surgery & Extractions 4

Question 1

What is the recommended storage medium for an avulsed permanent tooth before reimplantation?

Accepted Answer

Milk or Hank's Balanced Salt Solution (HBSS)

Answer

Milk is the most practical recommended storage medium (HBSS is ideal but impractical) as it maintains PDL cell viability; dry storage causes rapid PDL cell death.

Question 2

At what age is surgical removal of unerupted lower third molars with no pathology generally not recommended?

Accepted Answer

Over 35 years (increased surgical morbidity)

Answer

NICE guidelines previously recommended against prophylactic removal of disease-free third molars; risk of complications (nerve injury, slow healing) increases with age after 35.

Question 3

What is the most important pre-operative assessment before extracting an upper molar in a patient on anticoagulants?

Accepted Answer

Check INR and liaise with anticoagulation clinic; proceed if INR ≤ 3.5

Answer

Current UK guidelines recommend checking INR before dental extractions; if ≤3.5, proceed with local haemostatic measures (pack, sutures, tranexamic acid mouthwash) without stopping warfarin.

Question 4

What does the term 'coronectomy' refer to in third molar surgery?

Accepted Answer

Deliberate removal of the crown only, leaving roots in situ when close to the IAN

Answer

Coronectomy involves removing only the crown of a deeply impacted lower third molar when roots are in intimate contact with the IAN, to avoid nerve injury.

Question 5

Which anatomical structure defines the posterior boundary of the pterygomandibular space?

Accepted Answer

Medial pterygoid muscle

Answer

The medial pterygoid muscle forms the medial and posterior boundary of the pterygomandibular space, which is entered during inferior alveolar nerve block administration.

ORE Part 2 Practice Test

ORE Part 2 Practice Test

ORE Part 2 Oral Surgery & Extractions 4