OMSITE CORE MAIN QUESTIONS AND ANSWERS SET
A+
✔✔Is a lady's lesion on pathological review has s100+, spindle cells, two different kinds
of cellular orientation what is the lesion? What are the cellular orientations? -
✔✔Schwannoma
and
Antoni A, Antoni B
✔✔How does one treat IAN after injury? - ✔✔Segmental resection of proximal and
distal ends
✔✔Approach to mediastinum to I&D neck fast? - ✔✔Transcervical
✔✔Soap bubble radiolucency in the mandible of a 20's male with painless expansion? -
✔✔Odontogenic myxoma
✔✔Why would any individual experience gait disturbance after AICBG? - ✔✔Stripping
of tensor fascia lata
✔✔What is the primary resistance to transverse widening in the SARPE? -
✔✔Zygomaticomaxillary buttresses
✔✔What is the most important place to put plate for stability of ZMC fracture? -
✔✔Zygomaticomaxillary
✔✔A patient with 2 condylar fractures and symphysis fracture will likely experience what
physical changes? - ✔✔Widening of the lower face
✔✔What feature is seen in high mandibular plane angle? - ✔✔Short condyles
✔✔Most important anatomical consideration for a long BSSO? - ✔✔Curve of Spee
,✔✔What is the most accurate way to measure transverse maxillary discrepancy for
orthographic surgery? - ✔✔Place casts into class I canine occlusion
✔✔What is the best way to assess maxillary occlusal cant? - ✔✔Medial canthal line to
canines
✔✔Patient presents to ED with FOM swelling following tori removal, what is the most
likely etiology? - ✔✔Hematoma from sublingual branch of lingual artery
✔✔Which of the following poses the greatest airway risk? - ✔✔Plunging ranula
✔✔What is the most dangerous complication of arthrocentesis? - ✔✔Fluid accumulation
in the lateral pharyngeal space
✔✔TMJ disc is composed of which types of collagen? - ✔✔Type I and II
✔✔How much residual gingival tissue should remain when planning esthetic crown
lengthening? - ✔✔At least 2mm residual keratinized tissue
✔✔What is the advantage of a SARPE? - ✔✔Allows for larger transverse movements
✔✔Which direction should the osteotomies of pterygoid plates be positioned? -
✔✔Anterior, inferior and medial (AIM)
✔✔What is the most common LeFort 1 malocclusion? - ✔✔Anterior open bite
✔✔What kind of TMJ splint can lead to an anterior open bite? - ✔✔Anterior bite splint
✔✔Idiopathic juvenile arthritis in the TMJ has what feature? - ✔✔It is unilateral
✔✔What is true about Von Willebrand factor disease type IIA? - ✔✔Decreased
large/medium multimers with normal platelet count
✔✔What is true about Von Willebrand factor disease type IIB? - ✔✔Decreased large
multimers, decreased platelet count
✔✔Plavix mechanism of action works on what structure? - ✔✔Platelets - irreversibly
binds ADP receptor
✔✔Benzodiazepines are known to affect the sleep cycle in what way? - ✔✔Reduce
REM sleep
,✔✔Methohexital is known to cause what side effect, especially in patients predisposed?
- ✔✔Seizures
✔✔What 3 things does propofol infusion syndrome cause in pediatric patients? - ✔✔1)
metabolic acidosis
2) Bradycardia and/or systole
3) Rhabdomyolysis
✔✔What is the work up to confirm Sjogrens? - ✔✔1)ANA
2) Salivary gland biopsy
3) Schirmer test
✔✔What lab should you get with phenytoin? Why? - ✔✔CBC
Folate deficiency leading to megaloblastic anemia, agranulocytosis, aplastic anemia,
decreased white blood cell count, and a low platelet count (thrombocytopenia).
✔✔What blood test should one get when taking Carbemazepine (Tegretol)? Why? -
✔✔CBC
Agranulocytosis and aplastic anemia
✔✔What would be seen with respiratory acidosis with following lab values: pH: 7.26,
paCO2: 50, HCO3: 26 - ✔✔Hypercalcemia
✔✔What is an indicator of nutritional status? - ✔✔Prealbumin
✔✔Kimmelstiel wilson nodules in a diabetic are visualized on pathology. What are the
nodules? - ✔✔Nodular sclerosis
✔✔What is the most widely accepted/ reliable classification system for hair loss? -
✔✔Norwood
✔✔Nevoid basal cell carcinoma presents in what fashion?
Listed are 11; try to get as many as possible - ✔✔1) autosomal dominant
2) multiple basal cell carcinomas of the skin
3) OKCs
4) intracranial calcifications
5) rib and vertebral anomalies (bifid ribs)
6) hypertelorism
7) palmar and plantar pits
8) Milia/epidermoid cysts
9) bridging of sella turcica
, 10) large calvaria
11) large paranasal sinuses
✔✔What is the principle presentation of orofacial granulomatosis? - ✔✔Labial swelling
✔✔What is the treatment for calcifying odontogenic cyst? - ✔✔Enucleation and
curettage
✔✔What are the possible etiologies of hemifacial microsomia? - ✔✔1) intrauterine injury
to stapedial artery
2) Failure of neural crest cells to migrate/ develop
✔✔What is the most appropriate treatment for microstomia following avulsive tissue
injury following? - ✔✔Commisurotomy
✔✔What are the facial features found in Treacher collins? (3 listed) - ✔✔1) Anti-
mongolian slant
2)Underdevelopment of zygomatic are malaria region
3) Micrognathia
✔✔What factors are found in TMJ inflammation? (3 listed) - ✔✔1) TNF-alpha
2) IL-1
3) IL-6
✔✔What would one expect to find in a large high pressure arteriovenous malformation?
- ✔✔Fibrin split products
✔✔What differentiates Wernicke's encephalopathy from Wernicke Korsakoff syndrome?
- ✔✔Confabulatory psychosis
✔✔What inhalation agent creates compound A?
What affects the concentration of compound A? - ✔✔Sevoflurane
the amount of gas diffusing over the absorbent is inversely proportional to the amount of
compound A produced. That means, low flow increases the amount of compound A.
✔✔What type of patient wound you not use sevofluorane for a 4-6 hour surgery? -
✔✔Obese woman with creatinine 2.4
A+
✔✔Is a lady's lesion on pathological review has s100+, spindle cells, two different kinds
of cellular orientation what is the lesion? What are the cellular orientations? -
✔✔Schwannoma
and
Antoni A, Antoni B
✔✔How does one treat IAN after injury? - ✔✔Segmental resection of proximal and
distal ends
✔✔Approach to mediastinum to I&D neck fast? - ✔✔Transcervical
✔✔Soap bubble radiolucency in the mandible of a 20's male with painless expansion? -
✔✔Odontogenic myxoma
✔✔Why would any individual experience gait disturbance after AICBG? - ✔✔Stripping
of tensor fascia lata
✔✔What is the primary resistance to transverse widening in the SARPE? -
✔✔Zygomaticomaxillary buttresses
✔✔What is the most important place to put plate for stability of ZMC fracture? -
✔✔Zygomaticomaxillary
✔✔A patient with 2 condylar fractures and symphysis fracture will likely experience what
physical changes? - ✔✔Widening of the lower face
✔✔What feature is seen in high mandibular plane angle? - ✔✔Short condyles
✔✔Most important anatomical consideration for a long BSSO? - ✔✔Curve of Spee
,✔✔What is the most accurate way to measure transverse maxillary discrepancy for
orthographic surgery? - ✔✔Place casts into class I canine occlusion
✔✔What is the best way to assess maxillary occlusal cant? - ✔✔Medial canthal line to
canines
✔✔Patient presents to ED with FOM swelling following tori removal, what is the most
likely etiology? - ✔✔Hematoma from sublingual branch of lingual artery
✔✔Which of the following poses the greatest airway risk? - ✔✔Plunging ranula
✔✔What is the most dangerous complication of arthrocentesis? - ✔✔Fluid accumulation
in the lateral pharyngeal space
✔✔TMJ disc is composed of which types of collagen? - ✔✔Type I and II
✔✔How much residual gingival tissue should remain when planning esthetic crown
lengthening? - ✔✔At least 2mm residual keratinized tissue
✔✔What is the advantage of a SARPE? - ✔✔Allows for larger transverse movements
✔✔Which direction should the osteotomies of pterygoid plates be positioned? -
✔✔Anterior, inferior and medial (AIM)
✔✔What is the most common LeFort 1 malocclusion? - ✔✔Anterior open bite
✔✔What kind of TMJ splint can lead to an anterior open bite? - ✔✔Anterior bite splint
✔✔Idiopathic juvenile arthritis in the TMJ has what feature? - ✔✔It is unilateral
✔✔What is true about Von Willebrand factor disease type IIA? - ✔✔Decreased
large/medium multimers with normal platelet count
✔✔What is true about Von Willebrand factor disease type IIB? - ✔✔Decreased large
multimers, decreased platelet count
✔✔Plavix mechanism of action works on what structure? - ✔✔Platelets - irreversibly
binds ADP receptor
✔✔Benzodiazepines are known to affect the sleep cycle in what way? - ✔✔Reduce
REM sleep
,✔✔Methohexital is known to cause what side effect, especially in patients predisposed?
- ✔✔Seizures
✔✔What 3 things does propofol infusion syndrome cause in pediatric patients? - ✔✔1)
metabolic acidosis
2) Bradycardia and/or systole
3) Rhabdomyolysis
✔✔What is the work up to confirm Sjogrens? - ✔✔1)ANA
2) Salivary gland biopsy
3) Schirmer test
✔✔What lab should you get with phenytoin? Why? - ✔✔CBC
Folate deficiency leading to megaloblastic anemia, agranulocytosis, aplastic anemia,
decreased white blood cell count, and a low platelet count (thrombocytopenia).
✔✔What blood test should one get when taking Carbemazepine (Tegretol)? Why? -
✔✔CBC
Agranulocytosis and aplastic anemia
✔✔What would be seen with respiratory acidosis with following lab values: pH: 7.26,
paCO2: 50, HCO3: 26 - ✔✔Hypercalcemia
✔✔What is an indicator of nutritional status? - ✔✔Prealbumin
✔✔Kimmelstiel wilson nodules in a diabetic are visualized on pathology. What are the
nodules? - ✔✔Nodular sclerosis
✔✔What is the most widely accepted/ reliable classification system for hair loss? -
✔✔Norwood
✔✔Nevoid basal cell carcinoma presents in what fashion?
Listed are 11; try to get as many as possible - ✔✔1) autosomal dominant
2) multiple basal cell carcinomas of the skin
3) OKCs
4) intracranial calcifications
5) rib and vertebral anomalies (bifid ribs)
6) hypertelorism
7) palmar and plantar pits
8) Milia/epidermoid cysts
9) bridging of sella turcica
, 10) large calvaria
11) large paranasal sinuses
✔✔What is the principle presentation of orofacial granulomatosis? - ✔✔Labial swelling
✔✔What is the treatment for calcifying odontogenic cyst? - ✔✔Enucleation and
curettage
✔✔What are the possible etiologies of hemifacial microsomia? - ✔✔1) intrauterine injury
to stapedial artery
2) Failure of neural crest cells to migrate/ develop
✔✔What is the most appropriate treatment for microstomia following avulsive tissue
injury following? - ✔✔Commisurotomy
✔✔What are the facial features found in Treacher collins? (3 listed) - ✔✔1) Anti-
mongolian slant
2)Underdevelopment of zygomatic are malaria region
3) Micrognathia
✔✔What factors are found in TMJ inflammation? (3 listed) - ✔✔1) TNF-alpha
2) IL-1
3) IL-6
✔✔What would one expect to find in a large high pressure arteriovenous malformation?
- ✔✔Fibrin split products
✔✔What differentiates Wernicke's encephalopathy from Wernicke Korsakoff syndrome?
- ✔✔Confabulatory psychosis
✔✔What inhalation agent creates compound A?
What affects the concentration of compound A? - ✔✔Sevoflurane
the amount of gas diffusing over the absorbent is inversely proportional to the amount of
compound A produced. That means, low flow increases the amount of compound A.
✔✔What type of patient wound you not use sevofluorane for a 4-6 hour surgery? -
✔✔Obese woman with creatinine 2.4
