maxillary injections Flashcards
(23 cards)
What teeth/tissues does the PSA block anesthetize?
Maxillary molars except MB root of 1st permanent molar; facial soft tissues of molars.
How much anesthetic is used for the PSA block?
½ – ¾ cartridge.
What is a contraindication for PSA?
When risk of hemorrhage is too great (e.g., hemophiliac).
What teeth/tissues does the MSA block anesthetize?
Maxillary premolars and MB root of 1st permanent molar; facial soft tissues of premolars and MB root of #3.
How much anesthetic is used for the MSA block?
⅓ – ½ cartridge.
What is a contraindication for MSA?
Infection or inflammation in the area.
What teeth/tissues does the ASA block anesthetize?
Maxillary centrals, laterals, canines; facial soft tissue of maxillary central, lateral, and canine.
How much anesthetic is used for the ASA block?
⅓ cartridge.
What does the GP (Greater Palatine) block anesthetize?
No teeth; lingual soft tissues from maxillary molar to canine.
What are the contraindications for ASA?
When hemostasis is needed, or when only 1–2 teeth need to be anesthetized.
How much anesthetic is used for the GP block?
Less than ¼ cartridge.
What is the contraindication for GP?
Inflammation or infection in the area.
What does the NP (Nasopalatine) block anesthetize?
No teeth; lingual soft tissues from maxillary incisor to canine.
How much anesthetic is used for NP?
Less than ¼ cartridge.
What is the contraindication for NP?
Inflammation or infection in the area.
What length and dose are used for ASA?
27 short; ⅓ – ½ cart (0.6–0.9 ml); depth: ¼ inch.
What is the injection site for ASA?
Mucobuccal fold anterior to canine.
What length and dose for MSA?
27 short; ⅓ – ½ cart (0.6–0.9 ml); depth: ¼ inch.
Injection site for MSA?
Mucobuccal fold above 2nd premolar.
PSA: needle, dose, and injection depth?
27 short; ½ – 1.8 ml (1/2 – 1 cart); depth: ½ – ¾ inch.
PSA injection site?
Mucobuccal fold over 2nd molar, angle upward/inward/backward at 45°.
Nasopalatine: needle, dose, and injection site?
25/27 short; <¼ cart (0.4 ml); site: posterior and lateral to incisive papilla.
Greater Palatine: needle, dose, injection site?
25/27 short; <¼ cart (0.4 ml); site: 2mm over palatal tissue distal to 2nd molar.
