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.