NEEDLE

DOSE

DEPTH

INJECTION SITE

AREA

ASA

27 short

1/3 – ½ cart .6-.9ml

¼ inch

Muccobuccal fold of canine

Max canine to canine teeth and facial tissues

MSA

27 short

1/3 – ½ cart .6-.9 ml

¼ inch

Muccobuccal fold of 2nd premolar  *avoid frenuli

Max. Premolar teeth and facial tissues and MB root of 1st molar

PSA

27 short

½ - 1 cart.  .9-1.8 ml

¾ inch ½ - ¾ needle

Muccobuccal fold of 2nd molar – DB root * 45 degree angles *Pterygoid Plexus

Max molars and facial tissues except MB root of 1st molar

GREATER PALATINE

25/27 short

1/3 – 1/3 cart .4-.6 ml

2mm cover bevel

Ant. To foramen lingual to 2nd molar * cotton tip

PM – molar palatal tissues

NASOPALATINE

25/27 short

¼ cart .45ml

2mm cover bevel

Posterior and lateral to the incisive papilla * cotton tip

Canine to canine palatal tissues

INFERIOR ALVEOLAR NERVE BLOCK

25 long

¾ cart 1.5ml

2/3 of needle

Coronoid notch, pterygomandibular raphe, lingual is 1cm above occ. Plane and 1-1.25cm back from ant border of ramus *7th nerve – Parotid

1 side of mandible except for buccal tissues of molars, ant. 2/3 tongue, floor of mouth

BUCCAL

25/27 long

1/6 cart .3ml

2-3 mm cover bevel

Muccobuccal fold DB to last molar.  Inject parallel and inferior to occlusal plane

Buccal tissues of mand. molars

LINGUAL

25 long

<1/4 cart

½ needle

Withdraw needle from IA until ½ reaspirate and inject

1 side of mand lingual tissue

MENTAL/

INCISIVE

25/27 short or long

1/3 cart. .6ml

¼ inch 5-6mm

Muccobuccal fold anterior to the mental foramen

Soft tissues and teeth PM to the midline, chin, lower lip.