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WorksheetsOral Surgery Medal Exam 2019
Total questions: 100
Worksheet time: 2hrs 35mins
Which of the following is true about pterygomandibular space?
I. Usually caused by infected mandibular 3rd molar (pericoronitis)
II. It Contains inferior neurovascular bundle, lingual and auriculotemporal nerve and mylohoid nerve and vessels
III. Severe trismus with obvious extra oral Swelling
IV. It spread superiorly to infratemporal space and medially to later pharyngeal space.
A 2-month-old male infant had a small pit at the anterior border of the sternocleidomastoid muscle, with mucus dripping intermittently from the opening. The pit extended to the tonsillar fossa as a branchial fistula. Which of the following embryologic structure(s) is (are) involved in this anomaly?
Second pharyngeal arch
Second pharyngeal pouch and groove
Third pharyngeal pouch
Thyroglossal duct
Which of the following statement is /are correct about mid face fractures?
Orbital blow out fractures involve the orbital floor.
Accumulation of CSF in cavernous sinuses after Lefort II fracture
The sphenoidal bone traumatises the cribriform plate in mid facial fractures
Leakage of CSF in mid facial fractures need no neurosurgical repair
CSF rhinorrhea continues more than a week after reduction and stabilisation then neurosurgical repair is needed.
Middle third fractures of face involves the cribriform plate with CSF rhinorrhea....which statement is true?
Which of the following statements is/are true?
Important observation following trauma to the eyes is to test visual acuity
Dilated pupil following trauma to occlumotor nerve,use of atrophine or Horners syndrome
Diplopia resulting from enophthalmos due to fracture of orbital floor or wall
Disruption of bony margins of superior orbital fissure leading to superior orbital fissure syndrome.
Concerning injured patients, which of the following are true?
CSF rhinorrhoea characteristically...true statement?
Raised intracranial pressure after maxillofacial injury....true statement
Haemorrhage with loss of more than 20% of the blood volume typically causes
Zygomatic fractures....false statement
Mandibular fractures are typically associated with...........false statement?
The Dautrey procedure..........true statement
Osteotomies .......true statement
When a down fracture Le fort I osteotomy is performed.....true statement?
A 15 year old otherwise healthy female patient at 1.am with large, firm, brawny submandibular swelling on right side. The patient has severe trismus, pyrexia and radiograph shows grossly carious 6. The patient has some dysphagia but the tongue is not elevated, which of the following is indicated?.....identify false statement
Cryosurgery...true statement
Which of the following statements are true?
Which of the following statements is/are false?
Glycosuria may be found in....false statement
Postoperative chest complications after GA....false statement?
Acute mandibular dislocation typically
When a genioplasty is performed.......true statement
What is the temperature used in glass bead sterilizer?
450 C-480 C
425 F-475 F
430 C-440 C
218 F-246 F
According to Mallampatti classification structures visualised in grade ii
A.soft palate and uvula ,facial pillars,tongue base
B.soft palate,faucial pillars,tongue base
C.hard palate and tongue base
D.posterior pharyngeal wall,soft palate and uvula, faucial pillars,tongue base
According to Ilizarov the duration for latency period in distraction protocol is
2-4 DAYS
3-5 DAYS
5-7DAYS
7-9 DAYS
If patient is taking heparin and we have to do surgery immediately, the effects of heparin can be reversed by:
Vitamin K
Protamine sulfate
Fresh frozen plasma
Hydrocortisone
5% dextrose
Which method of sterilization is used for metal instruments and endotracheal tubes?
Isopropyl alcohol
Glutaraldehyde
Chlorhexidine
Beta-Propiolactone
Which of the following method of sterilization is ineffective?
Ethylene oxide gas.
Gamma Radiation
UV radiation
Autoclaving
Hot air oven
Lip switch procedure is also called:
Simple alveoloplasty
Sub mucosal vestibuloplasty
Labial Frenectomy
Transpositional flap vestibuloplasty
Maxillary augmentation procedure
Father of distraction is
ILIZAROV
CODVILLA
WASSMUND
CADWELL
Ostemyelitis maxilla is rate due to all of the except ___________
Extensive blood supply to maxilla
Abundant medullary space
Thick Corical plate
Porous nature od membranous bone
_______is the common syndrome associated with hemimandibular hypoplasia?
Nager’s syndrome
Goldenhar – gorlin syndrome
Stickler’s syndrome
Townes-brocks syndrome.
Which of the following is false regarding danger space?
Anterior border is alar layer of deep fascia
Anterior border is prevertebral layer
It extent border from skull base to trachea
It is named danger space because it contains loose areolar tissue and offer less resistance to the spread of infection.
In distractor which movements moves the distraction plates apart
CLOCKWISE
ANTICLOCKWISE
INVERSION
REMOVING THE DISTRACTION SCREW
______ test is positive in case of patient with frey’s syndrome?
BENEDICT’S TEST
PAUL-BUNNELL TEST
BENZIDINE TEST
MINOR STARCH IODINE TEST
Fracture of floor of orbit is characterized by
Anaesthesia of upper lip
Paralysis of neck muscles
Paralysis of lower eyelid muscle
Anesthesia of ear lobe
Elective dental procedures in a myocardial infarction patient must be deferred for _______ months?
2 months
4 months
6 months
8 months
Hyperplasia of the crest of the alveolar ridge is most commonly found in
Maxillary posterior region
Maxillary anterior region
Mandibular anterior region
Mandibular posterior region
Zygomatic arch fracture that is unstable after reduction is the one displaced
Medially
Superiorly
Inferiorly
Laterally
The number of millimeters per day at which the bone surfaces are distracted apart is
0.5 MM /DAY
0.7MM /DAY
1MM/DAY
2MM/DAY
Beta propiolectone is product of __________________
Propane+butane
Glutaraldehyde+Acetone
Ketone+Formaldehyde
Acetaldehyde+Ketone
If stones are present in salivary duct there are chances of:
Hypertrophy of salivary gland
Hyperplasia of salivary gland
Hyperplasia of salivary duct
Dysplasia of salivary gland
Metaplasia of lining of salivary duct.
This is a two stage technique that combines the two standard procedures in first marsupialization is performed and the entire tissue is examined for histology
Waldron’s methods
Warts incisions
Enucleation
Suturing
Cortical trephination is a procedure
INVOLVING PERFORATION OF THE CORTICAL PLATE TO ACCOMPLISH RELEASE OF PRESSURE FROM THE ACCUMULATION OF EXUDATES
PLACING A RETIROGRADE MATERIAL
CORRECTION OF DEFECTS IN THE BODY OF ROOT OTHER THAN THE APEX
REMOVAL OF ONE OR MORE ROOTS IN A MULTIROOTED TOOTH
Advantages of using THORP plating system is all of the following except
Less possibility for devascularization and resorption of bone beneath the plate that may lead to plate loosening
Developed by raveh
Reduced risk of infection
Difficult to remove
Which of these branches of trigeminal never contain somatic motor process?
Supraorbital nerve
Infraorbital nerve
Mental nerve
Frontal nerve
Autogenous rib graft for ridge augmentation is usually harvested from
FIRST RIB
2ND TO 4TH RIB
5TH TO 9TH RIB
11TH TO 12TH RIB
Which is of the following is not a phase of distraction osteogenesis
Latency phase
Distraction phase
Consolidation phase
Enlargement phase
You wake one morning to discover that your alarm has not worked and you are running late. Desperate to get to your biochemistry lecture in time, yet unbearably hungry, you quickly throw some bread in the toaster as you get ready. Despite the toast burning a little, you eat it quickly as you rush out the door. The burnt parts of the toast scratch the roof of your mouth, leaving you with a stinging sensation there. What nerve is collecting this sensation from the hard palate?
Posterior superior alveolar nerve
Inferior alveolar nerve
Lingual nerve
Greater palatine nerve
Lesser palatine nerve
Transverse fracture of symphysis. Treatment options are all except
2 lag screws
2.5mm reconstruction plates
2mm compression plate
1.5mm single plate
Which of the following is one of the components of composition of whitehead’s varnish?
BENZOIN
ETHYL ALCOHOL
SODIUM BICARBONATE
SODIUM METHABISULPATE
The nucleus involved in papez circuit
pulvinar
intralaminar
VPL nucleus
anterior nucleus of thalamus.
Fracture of angle of mandible is best managed by
Compression plates
2 Miniplates on lateral surface
One miniplate on external oblique ridge
IMF
When a mandibular fracture is transferred to an emergency room under what is mandibular fracture examined.
Primary survey
Secondary survey
Resuscitation room
Next day in the clinic
MRND 1 involves preservation of which structure
SPINAL ACCESSORY NERVE
INTERNAL JUGULAR VEIN
STERNOCLEIDOMASTOID PROCESS
NODES 1-5
Chronic paroxysmal hemicranial headache is an orofacial pain of ______________ origin.
extra cranial
vascular
psychogenic
referred
Gorlin goltz syndrome is most commonly associated with which type of carcinoma
Squamous cell carcinoma
Basal cell carcinoma
Ewing’s sarcoma
Malignant melanoma
Recommended time gap between radiation exposure and surgery to avoid osteoradionecrosis ________.
4-6 week after radiotherapy
4-12 months after radiotherapy
Immediately after radiotherapy
Anytime during course of radiotherapy
What is the diameter of ostium which opens into middle meatus?
4 to 5mm DIAMETER
2 to 3mm DIAMETER
3 to 6 mm DIAMETER
5 to 7 mm DIAMETER
Catgut suture is best stored in
Ethyl alcohol
Benzyl alcohol
Isopropyl alcohol
Ether.
High Glassgow coma scale value of 15 indicates that the patient is
Concious
Unconcious but not under threat to life
Unconcious but threat tolife
Brain dead
The least basic surgical goal for management of oral pathological lesion is
Eradication of lesion
Functional rehabilitation of pt.
Aesthetic improvement
Diagnostc purpose
Study purpose
Temporary Diplopia is lasts only for :
5-7 DAYS
1WEEK
4-5 DAYS
7- 9 DAY
Which is an excellent imaging modality for soft tissues
Ultrasonography
Magnetic resonance imaging
Computed tomography
Conventional radiography
The most popular techinque in unilateral cleft lip repair is
Tennison triangular flap& millard rotation advancement repair
Tennison triangular flap&delaire techinque
Delaire techinque& noordhoff techinque
Millard rotation advancement repair&delaire technique
All of the following are true regarding retropharyngeal space except_____
Alar fascia separates retropharyngeal space from danger space
It contains lymph node
It bounded by superior and middle constrictors anteriorly and skull Base posteriorly
Retropharyngeal abscess is the most dangerous deep neck space.
Splints used in orthognathic surgery are made of what material?
ZINC OXIDE EUGENOL
IMPRESSION MATERIAL
SELF CURE ACRYLIC
HEAT CURE ACRYLIC
The size of occlusal view radiographic film is
SIZE 0: 22X35MM
SIZE 2:24X40MM
SIZE 3:27X54MM
SIZE 4:57X76MM
Most common cause of subarachanoid haemorrhage
MMA
Lenticulostratic artery.
Cortical branches
Rupture of brain aneurysm.
The analysis done in lateral cephalogram for orthognathic surgery is called
Rocky mountain analysis
Grummon’s analysis
Burnstone analysis
Bohn’s analysis
Gun shot wounds of face-----true statement is
Low velocity bullets causes more injury than high velocity missiles
Low velocity missiles causes deceptive external appearance with small entrance and extensive internal damage
Caused by sterile high velocity bullets.
Caused by high velocity bullets must be sutured as early as possible.
A 70-year-old man is admitted to the hospital with severe headaches. During physical examination he has difficulty in coughing and swallowing. A CT scan shows a tumor affecting a cranial nerve. Which nerve is most likely affected?
Mandibular
Maxillary
Glossopharyngeal
Vagus
Hypoglossal
Which of the following is a long action local anaesthesia?
Lignocaine
Procaine
Prilocaine
Bupivacaine
_____________is a psychophysiological phenomenon which represent the individual’s manifestation of unpleasant reaction and involves complex neuroanatomical and psychological factors.
PAIN ACTIVITY
PAIN PERCEPTION
PAIN REACTION
PAIN TRANSMISSION
What is opiorin
Inflammation of parotid gland
Tumor of the salivary gland
Newly researched pain killing substance found in human saliva
Shape of the sublingual gland
The ph of saliva of resting gland is around
4-5
5-6
6-7
7-8
During the removal of mylohyoid ridge, which of the following nerves should be protected?
Mental nerve
Mylohyoid nerve
Lingual nerve
Inferior alveolar nerve
_________ is the method by which regional anaesthetic is secured by depositing the local anaesthetic solution in proximity to larger terminal nerve branches.
NERVE BLOCK .
FIELD BLOCK.
LOCAL INFILTRATION.
TOPICAL ANALGESIA.
Temporomandibular joint dysfunction is a typical orofacial pain of ________________ origin.
Extra cranial
Vascular
Psychogenic
Referred
What is opiorin
Inflammation of parotid gland
Tumor of the salivary gland
Newly researched pain killing substance found in human saliva
Shape of the sublingual gland
Sickle cell anaemia is the clinical manifestation of homozygous genes for an abnormal hemoglobin molecule. The event responsible for the mutation in the beta chain is
Insertion
Deletion
nondisjunction
point mutation
Recontouring of the residual ridge in early part of extraction period occurs primarily by resorption of the
Crestal bone
Lingual cortical bone
Labial-buccal cortical bone
Buccal-lingual cortical bone
A 17-year-old woman is admitted to the hospital with signs of cavernous sinus thrombosis, as revealed by radiographic and physical examinations. Thrombophlebitis in the “danger area” of the face can spread to the cavernous sinus and involve the ophthalmic branch of the trigeminal nerve. Which of the following symptoms will most likely be present during physical examination?
Pain in the hard palate
Anesthesia of the upper lip
Pain from the eyeball
Pain over the lower eyelid
Tingling sensation over the buccal region of the face
The following are the modifications of BSSO except
WASSMUND MODIFICATION
DALPONT MODIFICATION
HUNSUCK MODIFICATION
BELL & EPKAR MODIFICATION
Taking LA Toxicity into consideration how many catridges of xylocaine can be safely administered with epinephrine.
4 mg/kg.
6 mg/kg
7 mg/kg
12 mg/kg.
Tessier classification of cleft IS
Cleft lip only
Cleft palate only
Orofacial clefts
Both cleft lip and palate
Which tumour of parotid gland may be considerd having multiple etiologies like smoking, hypersensitivity and infection by viruse
PA
Warthins Tumour
ME Ca
PLGA
Emboli may.......false statement?
Follow deep vein thrombosis postoperatively
Form after fractures
Forms after surgical procedure
Be lethal
In Rule of 10 in the management of cleft lip,
10 Kg of body weight,10 weeks old,10 mg of Hb.
10 Kg of body weight,10 weeks old,10 g of Hb.
10g of body weight,10 months old,10 mg of Hb.
10 lb of body weight,10 weeks old,10 mg of Hb.
A 17-year-old woman is admitted to the hospital with tonsillitis. A tonsillectomy is performed and the patient complains postoperatively of ear pain. Which of the following nerves was most likely injured during the surgical procedure?
Auriculotemporal
Lesser petrosal
Vagus
Glossopharyngeal
Chorda tympani
Which of the following is not a complication of Bilateral Sagittal split osteotomy?
INFERIOR ALVEOLAR NERVE INJURY
INFRAORBITAL NERVE INJURY
MALPOSITIONING OF CONDYLAR SEGMENT
BAD SPLITS
_______________pain is associated with neurophysiologic and behavioral changes.
ACUTE
CHRONIC
NOCICEPTIVE
NEUROPATHIC
Which of following is not a radio isotopes used in head and neck imaging
TECHNETIUM
GADOLINIUM
GALLIUM
IODINE
A patient complaints of pain in upper portion of his neck on swallowing. occasionally regurgitates undigested food shortly after eating which of the following is most likely etiology of his problems?
Mallory Weiss tear
Zenker's diverticulum
Schatzki rings
Traction diverticula
A 45-year-old man was involved in a serious car accident. On examination he had a severe injury to the cervical region of his vertebral column with damage to the spinal cord. In fact, his breathing became erratic and stopped. At which level the damage might have occurred?
Above the level of C5
In C3, C4, C5
At C5
at C4
All of the above
Henry Border incision is used for
Upper 8—8 Impaction
Upper 3-----3 Impaction
Lower 8----8 Impaction
Incompletely formed lower 8----8 impaction.
Which of the following is position for a 2nd trimester pregnant patient during extraction?
Supine Position
Semi – Erect Position
Left Lateral Postion.
Erect Position
A patient is having apicectomy and through and through root filling with gutta percha under GA in operation theatre....what is true?
the gutta percha should not be cut in open flame because of risk of explosion in operation theater.
the gutta percha should be pulled from apical end to get a good seal in root canal.
postoperative X-ray of apicectomised tooth will show the same appearance like conventional r
Following facial fractures...pick up the true statement
It is satisfactory to stabilise the malar fracture by antrum packing postero superiorly firmly
Massetric pull causes postoperative displacement of Zygoma in treatment of zygomatic fracture.
Enophthalmos may be corrected by bone or alloplastic grafts to the orbital floor.
Damage to the right optic nerve will produce loss of the left consensual reflex.
With regard to apicectomy.......false statement?
apicectomy of lower second premolar sometimes causes risk of mental nerve anaesthesia
apicectomy of upper first premolar may involve entry into maxillary antrum
difficult to identify the palatal root of upper first premolar for retrograde root filling.
careful retrograde root filling and good filling in the crown will cause resolution of periapical infection without the need for conventional root filling.
