How do you administer an anterior superior alveolar nerve block?
Approach: While retracting the lip, insert the needle into the intersection of the mucobuccal fold and the apex/center of the canine at a 45-degree angle, advancing the needle approximately 1-1.5 cm. Aspirate. Slowly inject 2 mL of local anesthetic and massage for 10-20 seconds.
How do you use posterior superior nerve block?
Technique:
- A 25 or 27 gauge short needle is acceptable.
- The area of insertion is the height of the mucobuccal fold above and distal to distobuccal root of the last molar present in the arch.
- Retract the cheek so the tissue of the mucobuccal fold is taut.
- Apply topical anesthetic.
- Orient the needle bevel toward the bone.
Which injection is used by dentist?
Novocaine is the brand name for a local anesthetic called procaine. It is a local anesthetic medication that is used to numb a particular part of the body. It is most commonly used in dental procedures to numb the area around a tooth.
Where do you give PSA?
An important approach for providing the PSA block includes the insertion at the height of the mucobuccal fold distal to the zygomatic process and superior to the apex of the maxillary second molar and maintaining orientation of the syringe barrel outward laterally at a 45-degree angle away from the midsagittal plane …
What is PSA in dentistry?
The posterior superior alveolar (PSA) nerve block anesthetizes maxillary molar teeth (see image below). With the PSA nerve block, the first molar may not be completely anesthetized; in this case, the PSA nerve block can be used in conjunction with an MSA/supraperiosteal block.
Which nerve is blocked for upper tooth extraction?
Posterior Superior Alveolar Nerve Block. The PSA nerve block, otherwise known as the tuberosity block or the zygomatic block, is used to achieve anesthesia of the maxillary molar teeth up to the first molar, with the exception of its mesiobuccal root in some cases.
Where do you inject a dental block?
Approach: Insert needle into the mucobuccal fold with the bevel facing bone, aligned with the center of the tooth to be anesthetized, aimed toward the maxilla. Contact the maxilla, then withdraw the needle 1 mm. Aspirate. Slowly inject 1-2 mL of local anesthetic at the apex of the root tip.
What is the injection site for the posterior superior alveolar nerve block?
(v) The initial site of needle insertion is in the depth of vestibule distal and superior to the third molar region (junction of the posterio lateral surface of maxilla and posterior surface of maxilla) as shown in Figure 4. Here few drops of the anesthetic solution are deposited to anesthetize the path of insertion.
https://www.youtube.com/watch?v=h8nKbwZHgIw