MIDDLE 3RD #

MIDDLE 3^RD #

1). Le fort IV fracture includes all except

a)      le fort I

b)      le fort II

c)      le fort III

d)     cranial base

ANS: A

2). Best view to detect’ Blow out fracture’ is

a)      P A Caldwell

b)      0 degree occipito mental

c)      Cephalometric

d)     P A Water’s

ANS:D

3). Of the following, which is the problem associated with zygomaticomaxillary complex fracture

a)      Cosmetic

b)      Neurological

c)      Ophthalmic

d)     All of the above

ANS: d

4). The most probable diagnosis in a pt who comes with circumorbital ecchymosis, subconjunctival hemorrhage at outer canthus and limitation of mandibular movement is-

a)      Mandibular #

b)      NOE #

c)      Zygomatic complex#

d)     Le fort II fracture

ANS: C

5). The most common direction of fislacement of middle 3^rd # is

a)      Downwards and sidewards

b)      Downwards and anteriosly

c)      Downwards and posteriorly.

d)     Up wards and anteriorly

ANS:C

INFECTION CONTROL

INFECTION CONTROL

1). Infection control means:

a)      Only prevention of spread of micro organisms.

b)      Killing of micro organisms

c)      Removal of organisms from objects and surfaces

d)     All of the above.

ANS: d

2). After taking impression, before sending them to laboratory

a)      They should be thoroughly rinsed under copious water

b)      Should be sent as it is

c)      Disinfected first by using1:10 chlorine for 30 secs

d)     1: 50 chlorine is used for 5 mins

ANS: c

3). Which one of the following is correctly matched

1. Liquid waste -> buried and covered with bleaching powder and lime
2. Solid waste->incineration
3. Lab and pathological waste-> deep burial

a)      (i) and (ii)

b)      (i) and (iii)

c)      Only (ii)

d)     All of the above

ANS: D

4). Burning of the waste in flame is

a)      Fumigation

b)      Dry heat

c)      Incineration

d)     Any of the above

ANS: C

5). Chemically latex gloves are

a)      Polyvinyl

b)      1-benzo-hexane

c)      Rubber

d)     poly isoprene

ANS D

STERILIZATION

STERILIZATION

1). Efficiency of sterilization can be tested by

a)      Litmus paper

b)      Spores of bacillus steorothermophilus

c)      By growing colonies of rod shaped bacteria

d)     None of the above

ANS: B

2). Difference between sterilization and disinfection is

a)      The former kills the spores along with micro organisms.

b)      The later kills the spores along with micro organisms.

c)      Both are same.

d)     Only difference is of temperature.

ANS :a

3). Sharp instruments are effectively sterilized by:-

a)      Autoclave

b)      Chemicals

c)      Dry heat

d)     Any method

ANS: C

4) Ethylene oxide gas sterilization is achieved by

a)      Alkylation of organisms

b)      Denaturation of nucleic acids by the micro organisms

c)      Both of above

d)     None of above

ANS: c

5).releasing time required in an autoclave is

a)      5 mins

b)      10 mins

c)      15 mins

d)     20 mins

ANS: D

Orthognathic surgery

ORTHOGNATHIC SURGERY

1). Intra oral modified sagittal split technique of osteotomy is carried out in

a)      Maxilla

b)      Ramus of the mandible

c)      Symphysis

d)     Angle of mandible

ANS: B pg no 265 malik

2). Anterior body osteotomy is carried out in

a)      Mandibular prognathism

b)      Class III malocclusion

c)      Both a and b

d)     None of the above

ANS: C pg no 267 malik

3). Augmentation genioplasty can be done by

a)      Sliding horizontal osteotomy of the symphysis region

b)      Using autogenous bone graft

c)      Using alloplastic material

d)     All of the above.

ANS: D pg no 270 malik

4). Augmentation genioplasty is done

a)      To reduce the symphysis region

b)      To correct the facial asymmetry

c)      To increase the projection of chin

d)     To increase facial height vertically

ANS: C pg no 270 malik

5). In reduction genioplasty, reduction of the symphysis can be achieved

a)      Only in antero posterior plane

b)      Only in vertical plane

c)      Both in anter posterior plane and vertical plane

d)     None of the above.

ANS C malik pg no 273

6). Straightening genioplasty procedure can be done in patients with

a)      Condylar hyperplasia

b)      TMJ ankylosis

c)      Both (a)and (b)

d)     None of the above

ANS: C pg no 273 malik

7). Indications of extra oral sub sigmoid vertical ramus osteotomy is

a)      Major setback of mandible >10 mm

b)      Asymmetric setback of the mandible

c)      Re operation

d)     All of the above

ANS: D pg no 273 malik

8). Indication for IVRO (intra oral vertical ramus osteotomy) is

a)      Mandibular deficiency or retrognathism

b)      Bimaxillary protrusion

c)      Mandibular setback procedure in mandibular excess

d)     None of the above.

ANS: C pg no 274 malik

9). In BSSO,

a)      Bone graft is used for mandibular advancement

b)      Bone graft is sometimes used

c)      Bone graft is not needed

d)     Bone graft is obligatory

ANS: C pg no 276 malik

10). First maxillary setback was performed by

a)      Wassmund

b)      Wunderer

c)      Cohn stock

d)     Schuchardt

ANS C pg no 279 malik

11). Bimaxillary protrusion can be corrected by anterior maxillary osteotomy and

a)      Anterior sub apical osteotomy

b)      Posterior subapical osteotomy

c)      Total subapical osteotomy

d)     Any of the above.

Ans A pg no 268 malik

Temporomandibular joint disorders

TMJ/MPDS

1). Untrue of myofunction dysfunction syndrome is

a)      Common in females.

b)      Patient in middle age are affected more commonly.

c)      Radiographically and histologically detectable changes present

d)     More in early hours of day.

ANS: C.

2). The Al-kayat and Bramely approach to the tmj is a modification of the

a)      Hemi-coronal approach.

b)      Preauricular approach.

c)      Retroauricular approach.

d)     Risdon’s approach.

ANS: B

3). Ankylosis of TMJ is best treated by

a)      Sclerosing solution.

b)      Actice mouth exercise

c)      Codylectomy

d)     Intra-articular injections of hydro cortisone.

ANS: C.

4). Of the following which is not the structural element of tmj?

a)      Joint cavities.

b)      Sigmoid notch

c)      Condyloid process

d)     Articular disc

ANS: B

5). Following clinical disease process afftects tmj directly.

a)      Ankylosis.

b)      Dislocation.

c)      Arthritis

d)     All of the above.

ANS: D

6). Most common disorder causing pain about the masticatory apparatus including the tmj is

a)      Trigeminal neuralgia.

b)      Degenerative arthritis

c)      Traumatic arthritis

d)     MPDS>

ANS: D

7). Most common cause of TMJ ankylosis

a)      Rheumatoid arthritis.

b)      Osteoarthritis

c)      Trauma

d)     Childhood disease.

ANS: C

8). Early movement of TMJ following surgery for tmj ankylosis

a)      Desirable

b)      Contra indicated

c)      Harmful

d)     Both band c.

 ANS: A

9). Infracranial view for TMJ is also called as

a)      Water’sview

b)      Zimmer’s view

c)      Mequeen view

d)     Lateral view.

ANS: C

10). Which of the following is a psycho physiologic disorder

a)      Marfan’s syndrome.

b)      MPDS

c)      Marie Strumpbell disease

d)     Treacher Collins syndrome.

ANS: b

OSTEOMYELITIS

OSTEOMYELITIS

1). Osteomyelitis of maxilla is rare due to all of this except:

a)      Extensive blood supply to maxilla.

b)      Abundant medullary spaces

c)      Thick cortical plates

d)     Porous nature of membranous bone

ANS :C

2). Acute suppurative OML can be differentiated from alveolar abscess due to presence of

a)      Intermittent paraesthesia or anaesthesia of lower lip.

b)      Character of pain, POP.

c)      Associated fever.

d)     Regional lymphadenopathy.

ANS: A.

3). Radiographic changes in OML are seen

a)      Within a week after initiation

b)      3 weeks after initiation.

c)      After 30-60% of mineralized portion of bone are destroyed.

d)     Both (b) and( c)

ANS: D

4). Granulation tissue between living and dead bone

a)      Mottled appearance

b)      Moth eaten appearance

c)      Orangepeel appearance

d)     Thumb print appearance

ANS: B

5). Drug of choice for OML of jaws is

a)      Penicillin

b)      Clindamycin

c)      Cephazolin

d)     Erythromycin

ANS: A

Maxillary sinus

MAXILLARY SINUS:

1). Ostium of maxillary sinus opens into

a)      Inferior meatus

b)      Middle meatus

c)      Superior meatus

d)     None of the above.

       ANS: B

2). In the intact skull size of the opening of maxillary sinus is reduced by

a)      Uncinate process of ethmoid.

b)      Inferior nasal concha

c)      Perpendicular plate of palatine bone

d)     All of the above.

       ANS: D.

      3). Drainage of maxillary sinus is difficult in chronic conditions because

a)      Ostium lies at a highr level then its floor.

b)      Cilia in the lining mucosa are destroyed

c)      Both a and b

d)     None of the above.

        ANS: C.

      4). All of the following are the methods to remove the roots accidentally displaced into the maxillary antrum except:

a)      Patient is asked to blow air with nostrils closed.

b)      Insert suction tip into the antrum.

c)      Place iodoform gauze in the sinus and pull out in 1 stroke so tat the root piece comes out with the gauze

d)     Refer to an experienced surgeon to perform Caldwll-luc operation.

        ANS: B

       5). If a small opening is made into maxillary antrum during extraction, immediate treatment is

a)      Pack the socket with gauze

b)      Allow the clot to form no special t/t necessary.

c)      Place the pt. on antibiotics

d)     Raise a big mucoperiosteal flap and close the antrum.

      ANS: B.

Fracture Mandible

FRACURE MANDIBLE:

1). In the symphysis # medial displacement is due to

   a) Mylohyoid muscle.

   b) Muscles attached to the genial tubercles.

   c) Hyoglossus.

   d) Both a and b.

ANS: D

2). All are true except

   a) Presence of teeth on the proximal segment of # line reduces chances of displacement.

   b) Severe tear of musculature and overlying soft tissues permit wider displacement.

   c) There is more displacement of #ed segment in ramus # than in the # of the body of mandible.

   D0 Direction of  # line has effect on displacement..

ANS: C

3). Closed reduction is not indicated in

   a) Nondisplaced favourable #.

   b) Soft tissue overlying the # site.

   c) Coronoid process #.

   d) Severely atrophic edentulous mandible.

ANS:b

4). Ideal t/t of #  of angle of mandible is

   a) Transosseous wiring.

   b) Intermaxillary fixation.

   c) Plating on lateral side of body of mandible.

   d) Plating at the inferior border of mandible.

ANS: D

5). Displaced mandibular fracture in a child should be managed by

   a) Circum mandibular wiring.

   b) Early mobilization.

   c) Intermaxilary fixation.

   d) Transosseous wiring.

ANS: B

6). Deviation of the mandible to the right side may suggest

   a) # of left condyle.

   b) Hyperplasia of right condyle.

   c) Hyperplasia of left condyle.

   d) # of right condyle.

ANS: D

7). Anterior open bite is seen in

a)      Unilateral condylar #.

b)      Bilateral condylar #

c)      Maxillary #

d)     Coronoid #

       ANS: B

8). Fracture above the level of lateral pterygoid muscle

a)      Exhibits displacement.

b)      Teeth do not come to occlude on affected side

c)      They may be associated with severe pain.

d)     Both (b)and(c).

       ANS: D

      9). Condition where healed # is malpositioned but functionally accept is called

a)      Dysarthrosis

b)      Meta arthrosis

c)      Pseudo arthrosis

d)     None of the above

ANS: B

EXODONTIA AND DISIMPACTION

EXODONTIA AND DISIMPACTION

1). Rotary movement is used for the extraction of the

   a) Mandibular canine.

   b) Maxillary 1^st premolar.

   c) Mandibular molar.

   D) None of the above.

ANS: A

2). According to Geoffrey Howe in a T.E. case maxillary canine should be extracted

   a) Before anteriors and premolars.

   b) After anteriors and premolars.

   c) Simultaneously.

   d) Randomly

ANS: B.

3). Dry socket is

   a) Alvelo osteitis.

   b) Osteomyelitis.

   c) Cellulitis

   d) None of the aabove.

ANS: A

4). A patient on aspirin therapy come for dental extraction… Extraction

   a) Can be done immediately.

   b) Done after 7 days.

   c) Done after 7 days of stoppage of the aspirin.

   d) Extraction contra indicated.

ANS: C.

5). A pregnant patient indicated for extractyion of teeth should be placed on dental chair

   a) In left lateral position.

   b) In right lateral position.

   c) In supine position.

   d) Extraction contraindicated.

ANS: A.

6). Which type of third molar impaction is most common

   a) Distoangular.

   b) Buccoangular.

   c) Mesioangular.

   d) linguoangular.

ANS: C.

7). Which tooth is most commonly impacted?

   a) Maxillary 3^rd molar.

   b) Mandibular third molar.

   c) Maxilary canine.

   d) mandibular premolar.

ANS: B.

8). Most difficult disimpaction is

  a) Mesioangular

  b) Distoangular.

   c) Vertical.

   d) Horizontal.

ANS: B.

9). The bevel side of the chisel during bone removal should be facing

   a) Towards the bone.

   b) Away from the bone.

   c) Any direction.

   d) None of the above.

ANS: B>

10). The relation of the mandibular molar to the inferior alveolar canal is best determined by

   a) Occlusal radiograph.

   b) IOPA

   c) Latraal oblique

   d) Dentascan.

ANS: D.

OROFACIAL SPACE INFECTIONS AND CLEFT LIP AND CLEFT PALATE

OROFACIAL SPACE INFECTIONS:

1). Infection of lateral pharyngeal space may occur due to extension of infection from    a) Parotid space.

   b) Pterygomandibular space.

   c) Temporal space.

   d) none of the above.

ANS: B pg no 579 malik.

2). _________ makes up the posterior boundary of buccal space

   a) Buccinator muscle.

   b) Platysma muscle.

   c) Masseter

   d) Zygomatic arch

ANS: C pg 568 malik.

3) Space between Alar and prevertebral fascia is called _____

   a) Danger space.

   b) Viscerovascular space.

   c) Lincoln’s highway.

   d)  Both (b) and (c).

ANS: A pg 564 malik.

4).The space that lies between the anterior and posterior bellies of digastric is

   a) Submandibular.

   b) Sublingual.

   C) Canine space

   d) Buccinator space.

ANS: A pg 572 malik.

5). All of the following are masticatory spaces except:-

   a0 Temporal.

   b) Buccinator.

   c) Pterygomandibular.

   d) Submassetric.

ANS: B pg 576 malik.

CLEFT LIP AND CLEFT PALATE:

1). The most common cleft lip that occurs is

   a) Bilateral cleft lip.

   b) Left unilateral cleft lip.

   c) right unilateral cleft lip.

   d) No specific occurrence.

ANS: B pg 508 malik.

2). Median nasal process forms ll of the folloing except

   a) Middle part of the nose.

   b) Ala of the nose.

   c) Philtrum.

   d) Primary palate.

ANS: Bpg 509 malik.

3). Millard’s rule of 10 includes

   a) 10 kg of  weight.

   b) 10 gm of Hb .

   c) 10 days of age.

   d) All of the above.

ANS: B pg 513 malik