Maxillary Injections Flashcards
Quantity used for PSA
- 0.9-1.0cc
- 1/2 carpule
Quantity used for MSA
- 0.9-1.0cc
- 1/2 carpule
Quantity used for ASA
- 0.9-1.0cc
- 1/2 carpule
Quantity used for Greater Palatine
- 0.25cc (until tissue blanches)
- 1/4 carpule
Quantity used for Nasopalatine
- 0.25cc (until tissue blanches)
- 1/4 carpule
Quantity used for Infraorbital
- 1.2cc
- 3/4 carpule
Quantity used for Supraperiosteal Infiltration
- 0.9-1.0cc
- 1/3 carpule
What does the MSA Nerve Innervate?
- 1st PM
- 2nd PM
- 1st Molar (partially)
- Buccal gingiva in PM/1st Molar regions
What is the target area of the MSA?
- Slightly apical to the PM’s either 1st or 2nd
- Penetration made along the long axis of PM
- To the apex of PM
What is the needle insertion length for the MSA?
- 1/3 - 1/2 needle length
- 1/4” - 1/2”
What does the PSA innervate?
- 3rd Molars
- 2nd Molars
- 1st Molars (partially)
- Buccal gingiva in molar regions
What is the target area of the PSA?
- Apical to the root of the 3rd Molar
Where is penetration of the mucosa made for the PSA?
- Just lateral to the 2nd Molar
- At a 45 deg angle to the long axis of the tooth
- At an angle approaching 45 degrees medially
What is the needle insertion length for the PSA?
- 1/2 needle length
- 5/8”
What does the ASA innervate?
- Canines
- Lateral Incisors
- Central Incisors
- Labial mucosa and inner aspect of the lip to the mid-line
What is the target area of the ASA?
- Apical and slightly distal to the canine
- Penetration along the long axis of the canine to target zone
What is the needle insertion length for the ASA?
Pull Lip Tight
- 1/3 - 1/2 needle length
- 1/4” - 3/8”
What does the Greater Palatine innervate?
- No Teeth
- Palatal soft tissue
- From distal of the canine to the junction of hard and soft palate, and medial to the midline
- Palatal Bone
- Same area
What is another name for the Greater Palatine Nerve Block?
Anterior Palatine Nerve Block
What is the target area of the Greater Palatine Nerve Block?
- The Greater Palatine Foramen
Where is the penetration of the mucosa for the Greater Palatine?
- Just anterior to the greater palatine foramen
- 1/2” medial to the disto-palatal Cusp of the 2nd Molar
- Needle positioned nearly perpendicular to mucosa
What is the needle insertion length for the Greater Palatine?
- Until bevel is buried ~1/4”
- Bevel is positioned laterally (toward soft tissue)
What does the Nasopalatine Nerve innervate?
- No Teeth
- Palatal Soft Tissue
- Anterior portion of hard palate, from distal of canine to distal of canine
- Palatal Bone Same Area
What is another name for the Nasopalatine Nerve Block?
Incisive Nerve Block
What is the target area of the Nasopalatine Nerve Block?
The incisive foramen
Where is the penetration of the mucosa made for a Nasopalatine Nerve Block?
- Just lateral to the incisive papilla - toward the posterior portion of the papilla
- At a 45 deg angle to the palatal bone
What is the needle insertion length of the Nasopalatine Nerve Block?
- Until bevel is buried ~ 1/8”
- Bevel is toward bone
What does the Infraorbital Nerve innervate?
- Canine
- Incisors (to the midline)
- 75% = PM’s + part of 1st Molar
- Buccal gingica associated with teeth affected
- Lower eyelid, upper lip, and lateral aspect of nose
What is the only Maxillary Injection that you can use a 25 long needle on?
Infraorbital Nerve Block
What is the needle insertion length of the Infraorbital Nerve Block?
- Until bone is contacted
- ~ 1/2 needle length
- 16mm
What is the Supraperiosteal Injection more commonly called?
Local Infiltration
What is the Supraperiosteal injection used for?
- In the Maxilla for:
- Pulpa anesthesia of 1-2 teeth
- Soft Tissue Anesthesia of limited area
- High success rate = >95%
What is the target area of Supraperiosteal Injection?
- Apical region of the tooth to be anesthetized
- Penetration at the height of the mucogingival fold
- Along the long axis of the maxillary tooth to the target zone
