Infiltration
Injection Site
Mucofacial fold at the midline of the tooth
Depth of Insertion
3 mm
Deposition Site
Root apex
Amount Deposited
1/2 cartridge (0.9 mL)
Teeth Anesthetized
Incisors only
Other Tissue Anesthetized
Bone adjacent to tooth, facial periosteum, gingiva and mucosa
ASA
Injection Site
Mucofacial fold, inferior to infraorbital foramen
Depth of Insertion
5 - 7 mm
Deposition Site
Outside infraorbital foramen
Amount Deposited
3/4 cartridge (1.35 mL)
Teeth Anesthetized
Maxillary anteriors and possibly bicuspids and MB of first molar
Other Tissue Anesthetized
Bone adjacent to teeth, facial periosteum, gingiva, mucosa
MSA
Injection Site
Greatest concavity of the mucobuccal fold adjacent to the 2nd premolar
Depth of Insertion
Variable
Deposition Site
Approximate the root apex of the 2nd premolar
Amount Deposited
1.0 - 1.5 mL
Teeth Anesthetized
Premolars and MB root of the maxillary 1st molar
Other Tissue Anesthetized
Associated PDL, adjacent bone and buccal soft tissues
PSA
Injection Site
Height of the vestibule just distal to the zygomatic process
Depth of Insertion
About 1.5 cm (2/3 the length of a short needle or 1/2 the length of a long needle)
Deposition Site
Approximate between the DB root of M2 and the MB root of the M3
Amount Deposited
1.0 - 1.8 mL
Teeth Anesthetized
Maxillary molars (except for the MB root of the 1st molar)
Other Tissue Anesthetized
Associated PDL, adjacent bone and buccal soft tissues
Nasopalatine
Injection Site
2 mm anterior to junction of soft palate where tissue compresses
Depth of Insertion
3 mm
Deposition Site
Outside greater palatine foramen
Amount Deposited
1/3 cartridge (0.6 mL)
Teeth Anesthetized
None
Other Tissue Anesthetized
Palatal tissue associated with posterior teeth on side injected