OMF_Prof.Keamborn(151-212)

151Le fort 3 fracture is also called :?

Horizontal fracture

Pyramidal fracture

Transverse fracture

Green stick fracture

152Goals of Maxillomandibular Fixation (MMF) :?

Restore occlusion

Reduction of fracture segments

Stabilization of fracture segments

All of the above

153During the Gillies approach,the structure of anatomic significance is :?

Superficial temporal artery

Marginal mandibular nerve

Internal jugular vein

Inferior alveolar nerve

154An unfavorable displaced fracture of the mandibular angle is difficult to treat because of :?

Muscle pull causes distraction

Malocclusion secondary to the injury

Injury to nerves and vessels

Bone in that region is very thick

155Among the following which may produce respiratory obstruction ?

Bilateral condylar fracture

Symphysis fracture of the mandible

Bilateral fracture of mandible in the second premolar area

Fracture of the angle of the mandible

156In a patient with bilateral dislocated fractures of the neck of the mandibular condyles one can expect the following clinical signs :?

Anterior open bite

Inability to protrude the mandible

Inability to bring posterior molars into contact

Anterior open bite and Inability to protrude the mandible

157Of the following which facial bone is most frequently fractured ?

Mandible

Maxilla

Nasal

Zygomatic

158Which of the following is complication often open fracture ?

Malunion

Nonunion

Infection

Crepitation

159Principles in treatment fractures include :

Reduction of fracture

Fixation of fracture and restoration of occlusion

Immmobilisation

All of the above

160Depressed fracture of the zygomatic area may be clinically recognized by :?

Concavity of the overlaying tissue in the zygomatic arch area

Interference with movements of the mandible

Subluxation of condyles

Concavity of the overlaying tissue in the zygomatic arch area and Interference with movements of the mandible

161Which of the following is characteristic of lefort fracture ?

CSF rhinorrhea

Bleeding from the ear

Bleeding into antrum

CSF rhinorrhea and Bleeding from the ear

162After a depressed fracture of zygomatic arch mandibular movement is restricted The most probable reason is :?

Disruption of TMJ

Spasm of the lateral pterygoid muscle

Mechanical impingement of the fracture fragment on the coronoid process

Splinting action of masseter and medial pterygoid muscle

163Among the following which is compound fracture ?

Fracture with many small fragments

Fracture in a star shaped appearance

Fracture with communition with the oral cavity

Fracture with bleeding into the masticator space

164The mini-bone plate system is a :?

Compressive bone plating system

Monocortical system

Bicortical system

None of the above

165The minimum number of miniplates required in fractures anterior to canine in mandible is:?

No plate is required since anterior region develops less amount of tension forces than in molar region

Only one plate as in molar region

Two plates

Three plates

166Minimum number of screw required for fixation of miniplate are :?

One screw on each side of fracture site

Two screws on each side of fracture site

Three screws on each side of fracture site

Two screws in small fragment and three screws in large fragment

167Risdom wiring is indicated for :?

Body fracture

Angle fracture

Symphysis fracture

Subcondylar fracture

168The most common complication of maxillofacial injuries requiring immediate attention is:?

Haemorrhage

Airway obstruction

Infection

Shock

169The Gillies approach is used to gain acess to the following bone :?

Nasal bone

Zygomatic bone

Maxilla

Temporal bone

170While doing circumferential wiring around a mandibular Gunning splint, care most be taken not to damage the :?

Mandibular branch of the facial nerve

Facial artery as it crosses the anteroinferior of the masseter

The lingual nerve

The submsndibular gland and its duct

171The elastic traction used commonly to reduce facial fractures,does so by overcoming :?

The active mascular pull that distracts the fragments

The organized connected tussue at the fracture site

The malposion caused by the direction and force of trauma

All of the above

172Panda facies is commonly seen after :?

Le fort 1 fractures

Le fort 2 fractures

Zygoatic arch fractures

Orbital blow-out fractures

173A subconjunctival haemorrhage remains bright red in colour for a long time because of the:?

Permeability of the conjunctiva to oxygen

Natural colour of blood

Lack of drainage of the pooled blood

None of the abov

174The following fracture is usually pyramidal in shape :?

Le firt I fracture

Le fort II fracture

Le fort III fracture

Mandibular symphysis fracture

175Cranio facial disjunction commonly occurs in :?

Le fort I fracture

Le fort III fracture

Mandibular symphysis fracture

Mandibular condyle

176Gilli`s approach is :

Used to block inferior alveolar nerve

Used to reduce the fractured zygoma

Placed just anterior to the ear

One of the frequent approach for condylar surgery

177Contraindications of close reduction are :?

Alcoholic and siezure disorder

Mental retardation and nutritional concerns

Respiratory diseases(COPD) and unfavorable fractures

All of the above

178Indications of close reduction are :?

Nondisplaced favorable fractures

Mandibular fractures in children with developing dentition.

Condylar fractures(intracapsular fracture )

All of the above

179Indications of open reduction are :?

Unfavorable/unstable mandibular fractres/Multiple fractures of the facial bones

Fractures of an edentulous mandibule fracture with severe displacement and malunion

Delayed treatment with interposition of soft tissue that prevents closed reduction techniques to reapproximate the fragments

All of the above

180Indication of Transosseous wiring :?

Control of edentulous posterior fragment and edentulous mandibular fractures

Grossly comminuted fractures

Control of lower border when upper border has been fixed by conventional methods

All of the above

181The treatment goals of condylar fractures:?

To restore mandibular function, occlusion, prevent growth disturbances, and maintain symmetry

Must avoid ankylosis

Use short periods of IMF (7-14 days), then jaw opening exercises; in children under 3 years, immediate function necessary to prevent ankylosis

All of the above

182Which methods of treatment are appropriate for reduction of a fractured mandibular angle in a dentate patient :?

Intramaxillary fixation(IMF) using eyelet wires

IMF using arch bars

Mini bone plates

IMF using K-wires

183Subconjunctival bleed with no posterior border indicates fracture of which bone:?

Maxilla

Mandible

Zygoma

Nasal

184The weakest part of mandible where fracture occurs :?

Neck condyle

Angle of mandible

Canine fossa

Midline

185The most common fracture of face is that of :?

Mandible

Maxilla

Zygoma

Nasal bone

186Sinus disease is best demonstrated by :?

CTscan

Plain X-ray

Tomography

Ultrasound

187Nasal pyramid consist of :?

Nasal bones and Nasal septum

Frontal processes of maxilla

Lateral cartilages

All the above

188Diplopia is caused by:?

Hematoma or edema arround extraoccular muscle

Neuromuscular injury

Disruption of attachment of inferior rectus or inferior oblique muscle

All the above

189Signs and Symptoms of LeFort I fracture :?

Damaged teeth and soft tissues,swelling and bruising and deformity of alveolus

Crepitus over maxilla,ecchymosis in buccal vestibule and epistaxis

Malocclusion,maxilla mobility or Independent movement of fragments,altered sensation

All of the above

190Signs and Symptoms of LeFort II fracture :?

Midface crepitus,face lengthening and anterior open bite

Malocclusion, mobility of maxilla,bilateral epistaxis and infraorbital paresthesia

Ecchymoses: buccal vestibule, periorbital, subconjunctival ,orbital rim defects and paraesthesis (infra-orbital nerve)

All of the above

191Signs and Symptoms of LeFort III fracture :?

Bilateral periorbital edema , ecchymosis,step deformity palpated infraorbital, nasofrontal area and infraorbital paresthesia

Bilateral epistaxis,often medial canthal deformity,often unequal pupil height,face lengthening: “caved-in” or “donkey face”

Malocclusion: “open bite”,lateral orbital rim defect and ecchymoses: periorbital, subconjunctival

All of the above

192LeFort Fractures were described by :?

Wilson

Rene LeFort,1901.

Knight and North

Williams

193The coronal or bi-temporal approach is used to expose :?

The anterior cranial vault

The forehead

The apper and middle regions of the facial skeleton.

All of the above

194Clinical sign that is always positive in fracture is

Crepitus

Tenderness

Abnormal mobility

All of the above

195The most (common ) sign mandibular fracture is :

Malocclusion

Trismus

Deviation of the jaw on opening

Paraesthesia of the mental nerve

196Which of them is not rigid osteosynthetic fixation?

Osteosynthesis

Microplating

Screw plating

Wiring

197Treatment of choice of a linear non-displaced fracture of the body of the mandible, with full compliment of teeth is ?

Kirschner wire

Circumferential wiring

External pin fixation

Interdental fixation

198Which of the following condition is associated with anterior open bite

Unilateral condylar #

Bilateral condylar #

Maxillary fractures

Coronoid fracture

199Fracture of mandible not involving dental arch is treated by :?

Open reduction

Closed reduction

No treatment required

None of the above

200In case of sub condylar fracture, the condyle move in?

Anterior - lateral direction

Posterior - medial direction

Posterior- lateral direction

Anterior-medial direction

201A 7-year-old boy presented with fracture of left subcondylar region with occlusion undisturbed, the treatment would be?

Immobilization for 7 days

Immobilization for 14 days with intermittent active opening

No immobilization with restricted mouth opening for 10 days

No immobilization and active treatment

202Facial fractures are diagnosed from :?

The history

Physical examination

Radiographs

All of the above

203Le Fort I fracture is :?

Above the level of teeth

At level of nasal bones

At orbital level

At level of zygomatic bone

204Le Fort II fracture is :?

Transverse maxillary

Pyramidal

Craniofacial Disjunction

All of the above

205Le Fort III fracture is :?

Subzygomatic fracture

Subzygomatic pyramidal

Suprazygomatic

All of the above

206What are the singns and symptoms of Lefort I fracture ?

Damaged teeth and soft tissues

Deformity of alveolus and altered sensation

Malocclusion and crepitus over maxilla

All as the above

207What can be the signs and symptoms of le fort II fracture? Choose all that apply. ?

Bilateral epistaxis,open bite and face lengthening

Ecchymoses: buccal vestibule, periorbital, subconjunctival

Malocclusion, mobility of maxilla

All as the above

208Which of the following is the cause of fracture of facial bone ?

Motor vehicle accidents

Assault

Sport and gunshots wounds

All are correct.

209The following are the treatments of close reduction , except…?

Ivy loop wiring and continuous loop wiring

Maxillo-mandibular fixation (MMF)

Inter-maxilla fixation (IMF)

Bone plating

210All of the following are various surgical approaches for condylar fractures ,except:?

Submandibular (Risdom`s ) approach -(Neck condyle)

Postauricular approach and endaural approch–(Excellent cosmesis)

Preauricular approach

IMF

211All of the following are indication for nonsurgical treatment or close reduction of condylar process fractures ,except:?

Split condylar head

Intracapsular fracture

Extracapsular fracture

Small fragments from comminuted condyle

212All of the following are absolute indication for surgical treatment or open reduction of condylar process fractures ,except:?

Displacement of condyle into middle cranial fossa

Intracapsular fracture

Impossibility for restoring occlusion

Lateral extracapsular displacement

OMF_Prof.Keamborn(151-212)

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