ASA

Question 1

What is the bony landmark for the ASA?

Answer 1

Distal to lateral incisor close to apex of the canine

Question 2

What is the soft tissue landmark for the ASA?

Answer 2

Height of Mucobuccal fold in area of lateral incisor and canine

Question 3

What is the orientation for the ASA?

Answer 3

Same as if a buccal infiltration

Question 4

What is the needle depth for ASA?

Answer 4

Short needle 25mm

10-15mm

Question 5

What is the target nerve for the ASA?

Answer 5

Anterior Superior Alveolar Nerve

Question 6

Which structures get anaesthetised in a ASA

Answer 6

Pulp tissue, alveolar bone, connective tissue, PDL and buccal gingiva corresponding to the canine, lateral incisor and central incisor on ipsilateral side of injection

Question 7

What are the precautions/considerations for the ASA?

Answer 7

ASA may be referred as the infraorbital nerve block. (not covered technique
- we are blocking the ASA only as it runs laterally to mesially through the anterior wall of maxillary sinus

Question 8

How many planes do you aspirate in for ASA?

Answer 8

One