What specific radiographic view is used to detect ANSWER -bone graft from oneself
a fracture of the frontal bone? - ANSWER -
Water's view rib, iliac crest, calvarial bone
List two advantages of three-dimensional why is a local anesthetic with epinephrine often
imaging - ANSWER -anatomy that injected at the operative site preop when the
interferes with viewing can be eliminated patient is under general anesthesia? -
ANSWER -to reduce intaop bleeding and
before and after models can be generated postop pain
in addition to radiographic studies (including 3- what can be done during lengthy oral procedures
dimensional imaging), what other items may be to prevent drying and cracking of the lips? -
useful to the surgeon during facial reconstruction ANSWER -application of cream or ointment
surgery? - ANSWER -photographs and to lips
dental records obtained prior to illness and injury
what is accomplished by inserting a mouth prop
define cerebrospinal rhinorrhea - during certain oral surgical procedures? -
ANSWER -CSF leaking from the nose- can ANSWER -keeps mouth open during
indicate a dural tear surgery to help with visualization and prevent
injury to surgical team
list two options for sealing an intranasal dural
tear - ANSWER -placing a suture what is the purpose of inserting a throat pack?
how it is inserted? - ANSWER -McGill or
sealed off with fat, fascia, or muscle graft dressing forceps used for insertion, prevent oral
secretions, irrigation fluids, blood, bone, or tooth
fragments from lodging in pharynx
what are dental caries and what is their cause? -
ANSWER -tooth decay and enamel decay
caused by bacteria in the mouth which creates when is the throat pack removed, why? -
an acidic environment and low pH demineralized ANSWER -removed prior to extubation
enamel
ensures airway is patent and prevents gag reflex
stimulation
what is the importance of having x-rays in the OR
room prior to and during the surgical procedure?
- ANSWER -x-rays are a useful reference where does the mandible articulate? name the
for reconstruction three sections of the mandible - ANSWER -
with glenoid fossa of each temporal bone at the
TMJ
define autogenous, and list two possible donor
sites for autogenous bone grafts - body, ramus, angle
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, Oral and Maxillofacial Surgery Test Questions and Answers Rated A
in what situation(s) is an arch bar fixation
employed - ANSWER -following mandibular what signs and symptoms may be seen with an
and/or maxillary surgery or fractures orbital floor fracture? what is used to repair the
floor? - ANSWER -diplopia, enopthalamus,
periorbital fat and muscle pinched, swelling,
what are the typical sizes of wire used for arch bruising
bar fixation? when preparing the wire, how long
will it be? - ANSWER -22, 23, 24, 26 gauge selastic sheeting, stainless steel, titanium rigid
wires cut into 10 cm segments implants
what will the surgeon use to apply the wires that why do you need a corneal protector with this
will secure the arch bars to the upper and lower procedure? - ANSWER -protects against
teeth? which direction will the hook face on each corneal damage
one? which direction are the wires twisted when
inserted and removed? - ANSWER -with a
wire twister or driver what type of midfacial fracture is the most
common? what is the alternative name? describe
hooks face up on upper teeth and down on lower this type of fracture. - ANSWER -Le fort I
teeth fracture (transverse maxillary fracture)
applied- clockwise, removed- counterclockwise alveolar process of maxillary bone separated
from base of skull, upper jaw can be floating free
in the oral cavity
once the arch bars are attached, what will be
sued to immobilize the jaw? - ANSWER -
wire or elastic loops (loops more common now) when repairing a Le Fort I fracture what type of
incision is made? - ANSWER -
gingivobuccal sulcus
with an open reduction internal fixation (ORIF)
what has to be removed before the plate can be
placed? How is the plate prepared to fit the when passing the drill, what safety precaution is
bone? - ANSWER -periosteum removed taken? what does the ST commonly do when the
with freer elevator surgeon is drilling bone and why? -
ANSWER -keep safety on, drip irrigation
plate benders or plate bending irons fluid onto drill to cool down- prevents damage to
bone cells from heat
what is the sequence for placement of the plate?
- ANSWER -secure plate with bone clamps, list three methods for diagnosing a zygomatic
drill, measure, tap, screw fracture - ANSWER -physcial exam, xray or
MRI, CT scan
what lies immediately below the orbital floor? -
ANSWER -maxillary sinus describe the difference between a LeFort II and
2/5