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BDS2 OSCE > LA anatomy > Flashcards

LA anatomy Flashcards

1
Q

What teeth does an infraorbital nerve block anaesthetise?

A

U1 - U6 MB

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2
Q

What is anaesthetised by an Anterior Superior Alveolar nerve block?

A

U1 - U3

buccal gingivae/mucosa

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3
Q

What is anaesthetised by a Middle Superior Alveolar nerve block?

A

U4 - U6MB

Buccal mucosa & gingivae

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4
Q

What is anaesthetised by a Posterior Superior Alveolar nerve block?

A

U6 (not MB) - U8

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5
Q

What is anaesthetised by a Nasopalatine block?

A

palatal mucosa U3-3

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6
Q

What is anaesthetised by a Greater Palatine block?

A

palatal mucosa U4 - U8

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7
Q

What is anaethetised by a Buccal block?

A

Buccal mucosa L8 - L6 & papilla between L6 & L5

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8
Q

What is anaesthetised by an Inferior Alveolar block?

A

L1 - L8
ipsilateral lip & chin (via mental nerve)
ipsilateral tongue (lingual nerve)

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9
Q

What is anaesthetised by an Incisive block?

A

L1 - L5 & buccal mucosa

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10
Q

What injections can be given for maxilla?

A
  • infraorbital nerve block
  • anterior superior alveolar nerve block
  • middle superior alveolar nerve block
  • posterior superior alveolar nerve block
  • nasopalatine block
  • greater palatine block
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11
Q

What injections can be given in the mandible?

A
  • buccal block
  • inferior alveolar block
  • incisive block
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12
Q

Where is the non-dominant thumb placed for the IANB

A

Intra-orally in the retro-molar region of the mandible

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13
Q

Where is the non-dominant index or middle finger placed for the IANB?

A

Extra-orally at the posterior border of the ramus

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14
Q

In what position does the needle enter the mouth for an IANB?

A

Needle is advanced from the premolar region of the opposite side, with the syringe held parallel to the mandibular occlusal plane

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15
Q

Where is the needle inserted for an IANB?

A

Through the mucosa in the mandibular retro-molar region lateral to the pterygomandibular raphe, midway between the raphe and the anterior border of the ascending ramus of the mandible, aiming for a point halfway between the operator’s thumb and index finger
About 5mm above the mandibular occlusal plane

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16
Q

How far is the needle inserted for an IANB?

A

Until the medial border of the mandible is reached

Once bone has been touched, the needle is withdrawn slightly until it is supra-periosteal

17
Q

How much local anaesthetic is deposited in an IANB?

A

1.5ml, then withdraw halfway and deposit the remaining 0.5ml

18
Q

How is the lingual nerve anaesthetised in an IANB?

A

By withdrawing the needle halfway, aspirating again and depositing most of the remaining solution

19
Q

if you are providing anaesthesia to the maxillary teeth dental pulp, what LA technique would be used?

A

buccal infiltration

20
Q

if you are aiming to anaesthetise the maxillary teeth buccal ginigivae, what LA technique would be used?

A

buccal infiltration

21
Q

if you are aiming to anaesthetise the maxillary palatal gingivae of a tooth, what LA technique would be used?

A

palatal injection

22
Q

when would a mandibular dental block injection be used? (IDB/IAN)

A

to anaesthetise the pulp of the lower molars and second premolar

23
Q

when would a mental nerve block techique be used?

A

when providing dental pulp anaesthetic to the lower premolars and canine

24
Q

what LA technique is used to provide anaesthesia to the lower canine and incisors pulp?

A

buccal/labial infiltration

25
Q

when providing anaesthesia to the buccal gingivae of the lower molars & second premolar, what LA technique is used?

A

long buccal infiltration

26
Q

what LA techniques would be used to provide anaesthetic to the buccal gingivae of the lower premolars and canine?

A
  • infiltration
  • long buccal infiltration
  • mental nerve block
27
Q

how would you anaesthetise the buccal gingivae of lower canines and incisors?

A

provide LA via buccal/labial infiltration

28
Q

how can the lingual gingivae of the mandibular arch be anaesthetised?

A
  • lingual nerve block

- lingual infiltration

29
Q

patient is booked for an extraction of their 14, what LA technique would you use?

A
  • infiltration technique
30
Q

Patient is booked for extraction of their 14. What needle would you use?

A

short needle (blue, 25mm)

31
Q

Patient is booked in for extraction of their 14, what anatomical feature would you use to administer LA?

A

administer distal to apex of 14 at the muccobuccal fold

BDS2 OSCE (21 decks)

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