Maxillary Injection Technique

By Dr. Vishaal Bhat on Thursday 3 December 2009 with 0 comments




a. Local Infiltration (supraperiosteal injection)

i. Injection site: Mucobuccal fold of target tooth

ii. 30 gauge needle

iii. Depth: A few millimeters

iv. Anesthetized: Tooth, periosteum, mucous membrane

b. Posterior Superior Alveolar N. Block (PSA)

i. Injection site: Height of the mucobuccal fold above the maxillary 2nd molar; 45° angle to the maxillary occlusal plane

ii. Depth: 16mm

iii. Anesthetized: All molars but 72% of mesiobuccal root of maxillary 1st molar

c. Middle Superior Alveolar N. Block

i. Injection site: Mucobuccal fold above the 2nd premolar

ii. Depth: A few millimeters

iii. Anesthetized: 1st and 2nd premolar and mesiobuccal root of maxillary 1st molar

d. Anterior Superior Alveolar N. Block (Intraorbital N. Block)

i. Injection site: Height of the mucobuccal fold over 1st premolar

ii. Depth: 16mm

iii. Anesthetized: Central incisal through canine, occasionally maxillary

premolars and mesiobuccal root of maxillary 1st molar

e. Nasopalatine N. Block

i. Injection site: Lateral to the incisive papillae

ii. Depth: 6 – 10mm

iii. 30 gauge needle

iv. Anesthetized: Anterior palatal (hard and soft tissues of mesial of 1st premolar to the other side of mesial of 1st premolar)

f. Greater Palatine N. Block (Anterior Palatine Block)

i. Injection site: Halfway between the alveolar crest and the midline (2nd and 3rd molar area)

ii. Depth: Less than 10mm

iii. 30 gauge needle

iv. Anesthetized: Posterior portion of hard palate and overlying soft tissue to the 1st premolar and midline

g. Maxillary N. Block (V2 Block)

i. Greater palatine canal approach

ii. High tuberosity approach

Category: Endodontics Notes , Oral Medicine Notes

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