Anatomy For Dental Local Anaesthesia Flashcards

1
Q

What su topical anaesthetics

A

When it is a surface anasthesia such as a numbing cream

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2
Q

What is infiltration anaesthesia

A

When anaesthetic infiltrates the target tissue
At Apex of tooth
Depends on dentistry of surrounding tissue
Maxilla thin and porous mandible denser

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3
Q

What is block anasthesia

A

Blocks particular nerve trunk

Inferior alveolar lingual or buccal

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4
Q

What do LA drugs do

A

Reversible block sodium channel hodgkins cycle

Pass through axon membrane and bind to sodium channel from inside nerve

Don’t work well with infection present

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5
Q

What are some examples of LA drugs

A

Lidocaine - gold standard
Procaine
Articane

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6
Q

What are some procedures

A

Restorative - pulpal anaesthesia (+/- soft tissue anasthesia)

Extractions - pulpal anaesthesia, adjacent soft tissue anaesthesia gingival and alveolar

Biopsies - gingivae or mucosa in the lesion site

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7
Q

What innervates the buccal tissues

A

Buccal long nerve except upper buccal gingivae

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8
Q

What does the buccal tissues consist of

A

Buccal sulci
Buccal mucosa
Buccal gingivae

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9
Q

What innervates the lingual tissues

A

The lingual nerve

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10
Q

What are the features of the lingual tissues

A

Lingual sulci
Lingual mucosa
Lingual gingivae
Floor of mouth mucosa

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11
Q

To anaesthetise the incisors/canines what has to be taken into consideration

A

Dental branches of anterior superior alveolar nerves which supply th teeth and gingival branches supply labial gingivae

Incisive branch of nasopalatine nerve which supply palatal gingivae

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12
Q

When anaesthetising the premolars what is taken into consideration

A

Dental branches of Middle superior alveolar nerves supply teeth and gingival branches supply buccal gingivae

Branches of greater palatine nerve supply palatal gingivae

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13
Q

When anaesthetising the molars what is taken into consideration

A

Dental branches of posterior superior alveolar nerves supply teeth and gingival branches supply buccal gingivae

Branches of greater palatine nerve supply palatal gingivae

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14
Q

What are the properties of the maxilla

A

Thin and porous

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15
Q

How is labial/buccal infiltration given maxillary

A

Into labial/buccal sulcus - alveolar mucosa which is flexible
Aim for the apex of the tooth
Result pulpal anasthesia - dental branches
Labial/buccal anaesthesia - gingival branches

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16
Q

How is maxillary palatal infiltration given

A

Into palatal mucoperiosteum

Pain as increase in pressure

17
Q

Where are mandibular appropriate

A

Infiltration a only appropriate for anterior region

18
Q

Why is posterior infiltration of man idle not good

A

Bone too dense for la to reach posterior teeth apices

19
Q

What block techniques are used to overcome post mand issue

A
Block 
Inf alveolar nerve 
Lingual 
Long buccal 
Mental and incisive
20
Q

What are the borders of the infratemporal/pterygomandibular fossa

A
Lateral - ramus 
Medial - medial ptery muscle 
Post - parotid with facial nerve 
Anterior - Buccinator
Superior - lateral ptery
21
Q

What are the landmarks for inferior alveolar nevre block

A

Retromolar triangle
Pterygomandibular raphe
Coronoid notch of ramus
Opposing premolars

22
Q

Explain mental/incisive nerve block

A

Deposit la beside mental foramen
Anaesthetise mental nerve - soft tissues - lip, labial mucosa and gingivae

Incisive nerve - anterior teeth

23
Q

What is the dental innervation of 3-3 anterior teeth

A

Anterior superior alveolar nerve

24
Q

What supplies the premolars and the mesio buccal root of the first molar

A

Middle superior alveolar nerve

25
What nerve supplies the molars
Posterior superior alveolar nerve
26
What is the innervation of the lower teeth
3-3 anterior - incisive nerve The remianpder of the teeth inferior alveolar Same nevre just undergoes name change
27
What is the nerve innervation of the hard palate
Anterior - incisive branch of nasopalatine nerve Middle - greater palatine nerve Posterior - lesser palatine nerve
28
What supplies the floor of the moth
Lingual nerve
29
What supplies the surround mucosa of tooth
Upper anterior - intra orbital nerve Lower anterior - mental nerve The rest - long buccal nerve
30
What areas are anaesthetised
``` Teeth Gingivae - labial, buccal, lingual, palatal Alveolar mucosa Labial mucosa Buccal mucosa Lingual mucosa Floor of mouth Hard palate ```