Chapter 9

Question 1

PSA Block

Answer 1

Posterior superior alveolar

• Maxillary molars
  
  • 28% of the time MB root of the max 1st molar is not anesthetized
• Buccal periodontium and gingiva of maxillary molars and the buccal mucosa and upper lip
• Height of maxillary mucobuccal fold

Question 2

MSA block

Answer 2

Middle superior alveolar

-Premolars and MB root of max 1st molars

• Buccal periodontium and gingiva of premolars and buccal mucosa and upper lip

Question 3

ASA block

Answer 3

Anterior superior alveolar

• Maxillary anteriors
• Labial periodontium and gingiva of anesthetized teeth and labial mucosa and upper lip

Question 4

IO block

Answer 4

• Nerves: IO, ASA, PSA, Lateral nasal, superior labial
• Max anterior and premolars
• Upper lip, side of the nose, lower eyelid
• Height of the mucobuccal fold, superior to the apices of the max 1st premolar

Question 5

GP Block

Answer 5

Greater palatine
- doesn’t anesthetize any teeth
- Posterior hard palate and gingiva ipsilateral to the maxillary posterior teeth

Site: Palatal tissue anterior to the greater palatine foramen

Question 6

NP block

Answer 6

Nasopalatine
- No teeth
- Anterior hard palate and gingiva of max anteriors bilaterally

Site: palatal tissue lateral to incisive papilla

Question 7

IA block

Answer 7

IA, Mental, incisive nerve, lingual
- Mandibular teeth to the midline

• Lingual periodontium and gingiva to the midline: Facial periodontium and gingiva of premolars and anteriors to the midline; lower lip, anterior 2/3 of the tongue; and floor of the mouth to the midline
• mandibular tissue medial to the ramus, 6-10 mm superior to the mandibular occlusal plane

Question 8

Buccal block

Answer 8

Buccal nerve
- no teeth
- buccal periodontium and gingiva of mandibular molars

site; distal and buccal to the most distal molar

Question 9

Mental Block

Answer 9

Mental nerve
- no teeth
- facial periodontia and gingiva of premolars to the midline, lower lip and skin of the chin

Site: anterior to mental foramen at the depth of the mandibular mucobuccal fold

Question 10

Incisive Block

Answer 10

Mental and incisive nerve
- Premolars to the midline

• Facial periodontium and gingiva; lower lip and skin of the chin

Site: Anterior to the mental foramen at the depth of the mandibular mucobuccal fold

Question 11

Gow Gates Block

Answer 11

Nerves: IA, lingual, long buccal, mental, Incisive

• Mandibular teeth to the midline

facial and lingual periodontium, lower lip, anterior 2/3 of tongue, skin over zygomatic bone, mylohyoid

-buccal mucosa on the medial surface of the mandibular ramus, just distal to the height of the mesiolingual cusp of the maxillary second molar