MCQs of Oral and Maxillofacial Surgery ( Mandibular Fracture)

1
792

Fracture of mandible all are true except

Fractures of the mandible are common at the angle of the mandible

Fractures of the mandible are effected by themuscle pull

Fractures ofthe mandible are usually characterized by sublingualhematoma

C.S.F. rhinorrhea is a common finding

ANS: D

…………………………………………………………

The ideal treatment for fracture of the angle of mandible is

Transosseous wiring

Intermaxillary fixation

Plating on the lateral side of the body of the mandible

C.Plating at the inferior border of the mandible

Mini Plate on upper boarder of angle

ANS: E

………………………………………………………

A 7-year-old boy presented with fracture of left sub condylar region with occlusion undisturbed, the treatment would be

Immobilization for 7 days

Immobilizationfor 14 days with intermittent active opening

No immobilization with restricted mouth openingfor 10 days

No immobilization and active treatment

ANS: D

…………………………………………………………

A fracture mandible should be immobilized for an average of

3 weeks

6 weeks

9 weeks

12 weeks

ANS: B

…………………………………………………………………

Most common complication of condylar injuries in children

Pain

Ankylosis

Osteoarthritis

Fracture of glenoid fossa

ANS: B

……………………………………………………………….

In case of sub condylar fracture, the condyle move in

Anterior – lateral direction

Posterior – medial direction

Posterior- lateral direction

Anterior-medial direction

ANS: D

……………………………………………………………

The fracture of the tooth bearing segment of the mandible is

Simple

Complex

Compound

Comminuted

ANS: C

…………………………………………………………

The proximal segment of mandibular angle fracture usually displaced in which direction

Anterior and Superior

Posterior and interior

Interior only

Posterior and superior

ANS: A

……………………………………………

A displaced mandibular fracture in a child should be managed by

Circum mandibular wiring

Early mobilization

Intermaxillary fixation

Transosseous wiring

ANS: A

……………………………………………………

A fracture of the mandible in the canine region in a 6 year old child should be Managed by

Cap splint fixation

Intermaxillary fixation

Risdon wiring

Transosseous wiring

ANS: A

……………………………………………………

The most common site of fracture of the mandible is the:

Body

Angle

Symphysis

Condyle

ANS: D

……………………………………………………

A patient with unfavourable fracture of the angle of mandible is best treated by:

Closed reduction with intermaxillary fixation

Closed reduction with cap splints

Open reduction with interosseous wiring

Open reduction with rigid bone fixation

ANS: D

………………………………………………………………

Bucket handle type of fractures are seen in

Children

Soldiers

Edentulous persons

Young adults

ANS: C

………………………………………………

A fractured mandibular condyle is displaced forward and medially by the action of The following muscle:

Temporalis

External pterygoid

Internal pterygoid

Masseter

ANS: B

…………………………………………………

Primary healing of a mandibular fracture is seen following fixation with :

Gunning splints

Compression plates

Trans-osseous wires

Clampy plates

ANS: B

…………………………………………

Eburnation is seen in

A . Malunion

Non union

Osteomyelitis

Osteoradionecrosis

ANS: B

……………………………………………

All are features of mandibular fracture except :

Malocclusion

Paresthesia of lower lip

Fractured ends are prevented from dislocation by masticatory muscles

Are usually compound

ANS: C

……………………………………………

Green stick fractures are most common with :

Older people

Adult

Children

Soldiers

ANS: C

………………………………………………

The treatment for a mandibular fracture between the incisors is :

Risdon wiring

Essig wiring

Cap splint with circum-mandibular wiring

Transosseous wiring

ANS: A

……………………………………………..

Compression osteosynthesis heals fracture mandible by :

Primary union with out callus formation

Secondary union with out callus formation

Compression union

All of the above

ANS: A

………………………………………………

Which of them is not rigid osteosynthetic fixation

Osteosynthesis

Microplating

Screw plating

Wiring

ANS: D

……………………………………………………

The most (common ) sign mandibular fracture is :

Malocclusion

Trismus

Deviation of the jaw on opening

Paraesthesia of the mental nerve

ANS: A

……………………………………………………

Direct inter dental wiring is also known as :

Risdon’s wiring

Gilmer’s wiring

Eyelet wiring

Col. Stouts wiring

ANS: A

…………………………………………………

An adult patient sustained a subcondylar fracture on the left side. Clinically it is seen that then

Moderate intraoral bleeding

Trismus and bilateral crepitus

Deviation of the mandible to the right on protrusion

Inability to deviate the mandible to the right

ANS: D

……………………………………………

The weakest point of the mandible where fracture occurs is

Neck of the mandibular condyle

Angle of the mandible

Symphysis menti

Oblique ridge near mental foramen

ANS: A

……………………………………………

Clinical sign that is always positive in fracture is

Crepitus

Tenderness

Abnormal mobility

All of the above

ANS: B

………………………………………………

The extraoral X-ray view required for a fracture mandible is :

Submentovertex

Posterioanterior

Water’s

Towne’s

ANS: B

…………………………………………

Post-auricular ecchymosis is cases of fracture the base of the skull is called :

Battle’s sign

Tinel’s sign

Trousseau’s sign

Nikolsky’s sign

ANS: A

……………………………………………

Direct impact on the bone will produce a :

Transverse fracture

Oblique fracture

Spiral fracture

Comminuted fracture

ANS: A

…………………………………………

A deviation of mandibleto right side may suggest

Fracture of left condyle

Hyperplasia of right condyle

Hypoplasia of left condyle

Fracture of right condyle

ANS: D

……………………………………………….

If fracture of mandible occurs distal to last tooth, the treatment of choice:

Closed reduction with IMF

Open reduction with bone plating

Open reduction with interosseous wiring

Closed reduction with cap splint

ANS: B

………………………………………………

Following bilateral mandibular fracture in the canine region, the following muscles will tend to pull the mandible back:

Genioglossus and anterior belly of digastrics

Genioglossus and mylohyoid

Genioglossus and thyrohyoid

Genioglossus and masseter

ANS: A

……………………………………………

Treatment of choice to manage symphyseal fracture in a 8-year-old child is :

Intermaxillary fixation

Cap splint with circumferential wiring

Open reduction

No treatment indicated

ANS: B

………………………………………………………

In osteosynthesis all are used except:

Lag screw

Wires

Clampy bone plate

Eyelet wiring

ANS: D

……………………………………………………………

Fracture of body of mandible with full arch of teeth (undisplaced) is treated by :

IMF

Open reduction and internal fixation

Close reduction and internal fixation

External pin fixation

ANS: A

…………………………………………………………

Fracture of mandible not involving dental arch is treated by:

Open reduction

Closed reduction

No treatment required

None of the above

ANS: A

……………………………………………………

Treatment 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

ANS: D

……………………………………………..

Which of the following condition is associated with anterior open bite

Unilateral condylar #

Bilateral condylar #

Maxillary fractures

Coronoid fracture

ANS: B

…………………………………………………

When subcondylar fractures on protrusion of Mandible it deviates to

Same side

Opposite side

Does not move

retrudes

ANS: A

…………………………………………………

Battle’s sign is.

Sub-conjunctival ecchymosis.

Sub-lingual ecchymosis.

Palatal ecchymosis.

Ecchymosis in the mastoid region.

ANS: D

………………………………………………

Risdon wiring is indicated for

Body fracture

Angle fracture

Symphysis fracture

Subcondylar fracture

ANS: C

……………………………………………

The optimum length of screw, for fixation of plate in mandible is

2mm

3mm

4mm

6mm

ANS: C

…………………………………………

The splint which is most commonly used in edentulous mandibular fracture is

Gunning splint

Cap splint

Ribbon splint

All of the above.

ANS: A

………………………………………………

A displaced, unfavorable fracture in the mandibular angle region is a potentially difficult fracture to treat because of

Injury to neurovascular bundle

Malocclusion secondary to injury

Distraction of fracture segments by muscle pull

Increased density of bone in this region of mandible

ANS: C

1 COMMENT

LEAVE A REPLY

Please enter your comment!
Please enter your name here