Start practicing

Oral Surgery · single question

During extraction of tooth #1 (maxillary third molar), it could be displaced into all of the following spaces EXCEPT:

  1. Maxillary sinus
  2. Lateral pharyngeal space
  3. Infratemporal fossa
  4. Palatal soft tissue
Show answer and explanation

Correct answer: B. Lateral pharyngeal space

  • A. Maxillary sinus is directly superior/adjacent to maxillary molar roots; tooth or root displacement into the sinus is a recognized complication.
  • B. Correct. The lateral pharyngeal space is not in the displacement pathway for maxillary third molars during extraction. This space is a complication more associated with mandibular third molar extractions and deep space infections.
  • C. The infratemporal fossa is posterior and medial to the maxillary tuberosity; a displaced upper third molar can enter this space through the pterygomaxillary fissure region.
  • D. Palatal soft tissue: a maxillary third molar with palatal root curvature can be displaced palatally into the palatal soft tissue.

Practice Oral Surgery questions Oral Surgery study notes

More Oral Surgery practice questions