Facial Trauma Flashcards
(209 cards)
What is the craniofacial ratio in adulthood
0.0840277777777778
What is the craniofacial ratio at birth
0.334027777777778
How many deciduous teeth are there
20
In an adult, what # is the right 3rd molar of the mandible
32
What is the appropriate tetanus prophylaxis for a patient with a tetanus-prone wound, who has not been previously immunized
0.5 ml absorbed toxoid and 250 units of human tetanus immune globulin.
What is the proper tetanus prophylaxis for a patient with a tetanus-prone wound, who last received a booster 7 years ago’
0.5 ml absorbed toxoid.
What do “microplates” refer to
1.0 mm screw applications.
In what % of the population is the nasofrontal duct a true duct
15% (in 85% it exists as a foramen draining directly into the nasal cavity).
How long should immobilization typically be maintained in children
2 - 3 weeks.
Where is this located in relation to the lateral canthus
2 em inferior.
What do “miniplates” refer to
2.0 mm, 1.5 mm, or 1.3 mm screw applications.
What % of mandible fractures are associated with cervical spine injury
2.6%.
What post-orbital fracture visual acuity scores are associated with a return to normal acuity after treatment
20/400 or better.
Where are the anterior and posterior ethmoid arteries and optic canal in relation to the anterior lacrimal crest
24 - 12 - 6 rule: anterior ethmoid artery is approximately 24 mm posterior to the lacrimal crest; the posterior ethmoid artery is 12 mm posterior to the anterior ethmoid artery; the optic canal is 6 mm posterior to the posterior ethmoid artery.
What is the typical long-term interincisal opening after surgical correction of TMJ ankylosis
25 - 28 mm.
What % of patients with ZMC fractures have other associated facial injuries
25%.
What % of thoracic perforations will be missed with water-soluble contrast agents
25%.
What is the incidence of permanent scleral show with the subciliary approach
28%.
What is the normal intercanthal width
30 - 35 mm in Caucasians or roughly the width of the alar base.
How far posterior should dissection proceed when placing a Medpor implant for defects of the posterior convex orbital floor
4 em.
What % of mandible fractures are associated with other injuries
40 - 60%.
What is the average depth of the orbit
40 -50 mm.
What is normal interincisal opening
40 -50 mm.
What % of cervical perforations will be missed with water-soluble contrast agents
50%.