SUR 105 - Test 1
Card Set Information
SUR 105 - Test 1
oral maxillofacial surgery
metal plates wired to the teeth to occlude the jaw during maxillofacial surgery or during healing, maintain normal bite
incision made between frontal and parietal bones bilaterally
screws that penetrate both cortical layers and intervening spongy layer of bone
severe fracture of orbital cavity in which portion of globe may extrude outside cavity
number, type, and pattern of teeth
horizontal fracture of maxilla that causes hard palate and alveolar process to become separated from the rest of the maxilla
Le Fort I fracture
fracture extending from nasal bone to frontal processes of maxilla, lacrimal bones, and inferior orbital floor
Le Fort II fracture
fracture involving separation of all facial bones from cranial base
Le Fort III fracture
wiring of patient's teeth with arch bars
maxillomandibular fixation (MMF)
patient's bite pattern when jaw is closed
surgery involving bones of face
skin incision made approximately 2 mm inferior to lower eyelids
incision made through conjunctiva
bone plate with retaining posts used in procedure for dental implants
upper face is composed of?
superior margin of bony orbit is formed by?
midface composed of?
bone that contributes to floor of cranium and contains a number of sinus cavities
bone that forms the bridge of the nose and articulates with ethmoid and maxilla
forms lateral walls and floor of bony orbit
what is the zygomatic arch?
lower face composed of?
only movable bone of the face
from what is mandible suspended?
bony outgrowth of palatine bones or mandible
torous palatinus/torus mandibularis
facial trauma most commonly caused by?
assault and MVA
bacterial infection and structural damage to teeth
malposition of upper and lower jaw
congenital defect resulting in abnormally small lower jaw
undergrowth of maxilla
primary means of repairing facial fractures
plates and screws
plate and screw sizes for mandibular fractures
at least 2 mm in size
plate and screw sizes for midface, orbital, and frontal sinus fractures
1 to 2 mm
most common causes of facial fractures
assault, MVA, and sports
how are facial fractures prepped?
with dilate Betadine scrub and paint - safest and most effective antiseptic for face
what area is prepped for facial fractures?
entire face from hairline to sternal notch
what types of sponges may be used?
4x4 and cottonoids
dressing that may be applied directly over site
Telfa or other nonadherent dressing
wrap dressings that may be used
if arch bars remain postop, what is sent with patient?
wire cutters - in event of airway emergency
anesthesia given for ORIF for midface fracture
general anesthesia through NG tube
suture used to close midface ORIF
midface ORIF healing
6 to 8 weeks
why is ORIF of frontal sinus fracture performed?
to repair CSF leakage, prevent obstruction of frontal sinus ducts, and restore aesthetic contour to forehead
why is ORIF of orbital floor fracture performed?
to reduce fracture of orbital floor, prevent entrapment of extraocular muscles, and to support orbital contents
portion of globe extruding into the nasal sinus
what can entrapment of the eye muscles result in?
diplopia (double vision)
most common causes of injury to orbital floor
assault and being struck by high-velocity object
what is instilled into the eye to provide moisture?
most common cause of mandibular fracture
3 types of dental implants
implant in alveolus of maxilla or mandible and then covered with soft tissue
implants placed beneath the periosteum directly on alveolar bone
bone plates with retaining posts resembling a staple - used only when patient has severe loss of bone in mandibular alveolar ridge
why is mandibular advancement performed?
to correct bony deformity of mandible
why is midface advancement performed?
to correct bony deformity of maxilla
why is temporomandibular joint arthroplasty performed?
to reduce pain and increase mobility of joint
grinding of teeth