5 Written questions
5 Matching questions
- Most likely long term outcome from conservative management of orbital blowout fracture (all-comers)?
- what are the most common complications of orbital floor repair
- Describe the direction of force on the mandible for each muscle:
2. Lateral pterygoid
3. Medial pterygoid
- which way does the lateral pterygoid tend to displace the condylar head
- What are class II and III occlusion?
- a Cheek hypesthesia. Enopthalmos likely if >50% of floor.
1. Temporalis pulls coronoid posterosuperiorly.
2. Lateral pterygoid pulls condyle anteroinferiorly.
3 & 4. Masseter & medial pterygoid pull the angle anterosuperiorly.
5 & 6. Geniohyoid and digastric pull mentum inferoposteriorly.
- c diploplia and enopthalmos
- d anterior and medial
Class II: retrognathism
Class III: prognathism
5 Multiple choice questions
- contralateral angle
Zone 1: thoracic inlet inferiorly and the cricoid cartilage superiorly
Zone 2: inferior border of cricoid cartilage to the angle of the mandible
Zone 3: angle of the mandible to the base of the skull
- symphysis and condyle of contralateral side
Some say panorex for subcondylar. Otherwise, Towne's view.
- 1. isolated nondisplaced fractures of the coronoid
2. unilateral nondisplaced subcondylar fracture with normal occlusion
5 True/False questions
What is shown in a submental vertex view film? →
upper 2/3 of facial bones, maxillary sinuses
What forms the border between the symphisis and body of the mandible? → external carotid-->internal maxillary-->inferior alveolar
How often do isolated fractures of a single site in the mandible occur? → 6%
Ideal time for nasal fracture reduction → within 3 hours of injury or from 3-7 days.
Treatement of posterior table frontal sinus fractures. → If no displacement or e/o CFS leak, observe and give abx. If displaced, obliteration and possible repair of dural tear. Cranialization reserved for fracture with significant bone loss or comminution.