Anatomy For Dental Local Anaesthesia Flashcards Preview

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Flashcards in Anatomy For Dental Local Anaesthesia Deck (30):
1

What su topical anaesthetics

When it is a surface anasthesia such as a numbing cream

2

What is infiltration anaesthesia

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

3

What is block anasthesia

Blocks particular nerve trunk
Inferior alveolar lingual or buccal

4

What do LA drugs do

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

5

What are some examples of LA drugs

Lidocaine - gold standard
Procaine
Articane

6

What are some procedures

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

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

Biopsies - gingivae or mucosa in the lesion site

7

What innervates the buccal tissues

Buccal long nerve except upper buccal gingivae

8

What does the buccal tissues consist of

Buccal sulci
Buccal mucosa
Buccal gingivae

9

What innervates the lingual tissues

The lingual nerve

10

What are the features of the lingual tissues

Lingual sulci
Lingual mucosa
Lingual gingivae
Floor of mouth mucosa

11

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

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

12

When anaesthetising the premolars what is taken into consideration

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

Branches of greater palatine nerve supply palatal gingivae

13

When anaesthetising the molars what is taken into consideration

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

Branches of greater palatine nerve supply palatal gingivae

14

What are the properties of the maxilla

Thin and porous

15

How is labial/buccal infiltration given maxillary

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

16

How is maxillary palatal infiltration given

Into palatal mucoperiosteum
Pain as increase in pressure

17

Where are mandibular appropriate

Infiltration a only appropriate for anterior region

18

Why is posterior infiltration of man idle not good

Bone too dense for la to reach posterior teeth apices

19

What block techniques are used to overcome post mand issue

Block
Inf alveolar nerve
Lingual
Long buccal
Mental and incisive

20

What are the borders of the infratemporal/pterygomandibular fossa

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

21

What are the landmarks for inferior alveolar nevre block

Retromolar triangle
Pterygomandibular raphe
Coronoid notch of ramus
Opposing premolars

22

Explain mental/incisive nerve block

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

Incisive nerve - anterior teeth

23

What is the dental innervation of 3-3 anterior teeth

Anterior superior alveolar nerve

24

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

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