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Anesthesia
Maxillary Injections
Question | Answer |
---|---|
ASA | Anterior Superior Alveolar |
MSA | Middle Superior Alveolar |
IO | Infraorbital |
PSA | Posterior Superior Alveolar |
GP | Greater Palatine |
NP | Nasopalatine |
What is the area anesthetized in the ASA? | Field block; includes maxillary central, lateral, cuspid, periosteum, and facial soft tissue of same area (to mid-line) |
What is the area anesthetized in the MSA? | Field block; includes maxillary premolars and MB root of Max. first molar, periosteum and buccal soft tissue of same area. Absent in a large % of the population. |
What is the area anesthetized in the IO? | Max. central to MB root of 1st molar, periosteum, buccal soft tissue of same area, lower eyelid, lateral aspect of nose, upper lip |
What is the area anesthetized in the PSA? | 3rd, 2nd, 1st, Max. molars (except MB root of 1st perm. molar if MSA is present) periosteum, and buccal soft tissue of same area |
What is the area anesthetized in the GP? | No teeth. Hard palate and lingual tissue posterior to 1st premolar and medial to midline |
What is the area anesthetized in the NP? | No teeth. Anterior 1/3 of hard palate, lingual tissues from cuspid to cuspid. |
What type of needle is used for the ASA? | 25 or 27 short |
What type of needle is used for the MSA? | 25 OR 27 short |
What type of needle is used for the IO? | 25 or 27 long; 27 short for small pt. |
What type of needle is used for the PSA? | 25 or 27 Short |
What type of needle is used for the GP? | 27 or 30 short or extra short |
What type of needle is used for the NP? | 27 or 30 short or extra short |
What are the landmarks for the ASA? | Canine fossae, located between lateral and canine |
What are the landmarks for the MSA? | zygomatic process, Max. premolars |
What are the landmarks for the IO? | Infraorbital notch; infraorbital foramen |
What are the landmarks for the PSA? | Zygomatic eminence maxillary tuberosity, ala of nose, corner of mouth |
What are the landmarks for the GP? | Vertical and horizontal processes of maxilla and palatine bones, 2nd or 3rd molars apices |
What are the landmarks for the NP? | Max. centrals, incisive papilla |