Mid palatine split in 3 D

Mid palatine split in 3 D occoured in road traffic accident with severe injury to the middle third of the face.

Over retained deciduous incisor

Overretained deciduous incisor splilted half & half

surgical removal of molar

MCQs in Oral Surgery

1) The most important barrier to the diffusion of local anaesthetic within the nerve is

a) epineurium  b) endoneurium  c) perilemma  d) none of the above

ANS: 

2)  The branch of the external carotid artery given at the level of the tip of the greater cornu of hyoid bone is

a) superior thyroid  b) lingual  c) facial  d) ascending pharyngeal

ANS:

3) In orthognathic surgery, which of the following jaw movements has the least chances of relapse.

a) superior repositioning of maxilla  b) mandibular advancement  c) inferior repositioning of maxilla  d) mandibular advancement with genioplasty.

ANS:

4) The muscle most commonly affected in myofascial pain dysfunction syndrome is

a) masseter  b) medial pterygoid  c) lateral pterygoid  d) temporalis

ANS:

5) Which of the following statements is not wrong?

a) The odontogenic keratocyst has the highest recurrence rate amongst the odontogenic cysts.

b) Carnoys solution may be used to prevent the chances of recurrence.

c) All of the above.

d) None of the above.

ANS:

Multiple Choice questions

1) 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 

2)  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

3) 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

4) Early movement of TMJ following surgery for TMJ ankylosis is

a)      Desirable

b)      Contra indicated

c)      Harmful

d)     Both band c.

Ans . A

5) All are advantages of marsupialization except

a)      Allows primary healing

b)      Allows eruption of teeth

c)      Reduces blood loss

d)     Alveolar ridge is preserved

Ans. A

Local Anaesthesia II

1). Most common complication of inferior alveolar nerve block is

a)      Trismus

b)      Facial palsy

c)      Haematoma

d)     None of the above

ANS:  A

2) Which of the following block anaesthesia procedure is most likely to result in hematoma

         a) mental nerve block

         b) infraorbital nerve block

         c)  inferior alveolar nerve block

         d) Posterior superior alveolar nerve block 

   ANS  d

3) Paresthesia of the lip results in

  

a)      numbness in the area

b)      hypersensitivity in the area

c)      tingling sensation in the area

d)     all of the above

ANS  d

4) Initial toxic reaction to xylocaine injection is

        a)  Twitching of the muscles

        b)   shivering

         c) Talkativeness of patient

         d)   sleepy feeling

ANS   d

5)      Trismus after inferior alveolar nerve block is most likely due to

a)      Hematoma formation

b)      Damage to medial pterigoid

c)      Injection into parotid gland

d)     Injury to mandibular nerve

ANS  b

6)      which of the following LA causes vasoconstriction without addition of vasoconstrictor

a)      Cocaine

b)      Lidocaine

c)      Procaine

d)     Bupivacaine

ANS    a

Local Anaesthesia

Local Anaesthesia

1). Adrenaline is added to local anesthetic agents because it

a)      Potentiate the action of all anesthetic agents

b)      Increases the rate of destruction of local anesthetic agent

c)      Decrease the rate  of absorption of local anaesthetic at injection site

d)     Prevents deterioration of anaesthetic solution

ANS: C

2). Amide type of local anaesthetic agents undergo biotransformation primarily in

a)      Kidney

b)      Liver

c)      Plasma

d)     No biotransformation

ANS: C

3). Toxic dose of lignocaine with adrenaline is

a)      5 mg/kg body wt

b)      10 mg/kg body wt

c)      15 mg/kg body wt

d)     20 mg/kg body wt

ANS: A

4). Of the following in which condition local anaesthesia is ineffective

a)      Edema

b)      Localized infection

c)      Hematoma

d)     Anemia

ANS B

5). All of the following areas become anaesthetized by inferior alveolarar nerve block except

a)      Lower incisors

b)      Lower third molars

c)      Buccal gingiva of mandibular second molars

d)     Mandibular 2^nd premolar

ANS C

6). Anterior palatine nerve is anaesthetized by anterior palatine nerve block , the subjective symptoms include

a)      Feeling of numbness of posterior palate

b)      Feeling of numbness in anterior part of palate near incisors

c)      Feelin of numbness of entire palate

d)     Little or no subjective symptoms

ANS: a