Nerve supply of teeth

Question 1

What does the anterior superior alveolar nerve supply?

Answer 1

Pulp and associated gingival of central incisor, lateral incisor and canine on the same side.

Question 2

What does the middle superior alveolar nerve supply?

Answer 2

Pulp and buccal gingival of first premolar and second premolar on the same side.

Question 3

What does the posterior superior alveolar nerve supply?

Answer 3

Pulp and buccal gingival of first, second and third molar.

Question 4

What does the nasopalatine nerve supply?

Answer 4

Palatal gingivae of central and lateral incisor and canine.

Question 5

What does the greater palatine nerve supply?

Answer 5

Palatal gingivae of first and second premolar, first second and third molars.

Question 6

What branch of the trigeminal nerve do these nerves originate from?

Answer 6

Maxillary branch (V2)

Question 7

What nerve branches are associated with the maxillary nerve?

Answer 7

Zygomatic- zygomaticotemporal and zygomaoicofacial
Infraorbital
Palatine nerves- greater and lesser palatine
Posterior, middle and anterior superior alveolar nerves

Question 8

What structures does the main trunk of the IAN supply?

Answer 8

Pulpal tissue of second premolar and first, second and third molars.

Question 9

What structures does the incisive branch of the IAN supply?

Answer 9

Pulpal tissue of central incisor, lateral incisor, canine and first premolar.

Question 10

What structures does the lingual nerve supply?

Answer 10

Lingual gingivae from central incisor to third molar on the same side.

Question 11

What structures does the buck nerve supply?

Answer 11

Buccal gingivae of first, second and third molars.

Question 12

What structures does the mental nerve supply?

Answer 12

Buccal gingivae of central incisor to second premolar. Lower lip and chin on the same side.

Question 13

During an IDB, what structures will be anaesthetised?

Answer 13

Pulpal tissue of all teeth on the same side.
Lingual gingivae via the lingual nerve.
Buccal gingivae of central incisor to second premolar on the same side.
Lower lip and chin on the same side.

Question 14

What nerves are responsible for nerve supply to the anterior 2/3 of the tongue?

Answer 14

General sensation- mandibular division of trigeminal nerve.
Taste- chord tympani via the lingual nerve.

Question 15

What nerve is responsible for nerve supply to the posterior 1/3 of the tongue?

Answer 15

Glossopharyngeal nerve supplies general sensation and taste.

Question 16

What structures are close to the parotid gland?

Answer 16

Medial pterygoid, facial nerve.

Question 17

How do you tell the difference between facial palsy and stroke?

Answer 17

In facial palsy, the patient will be unable to wrinkle their forehead on the affected side,
In stroke, the patient will still be able to wrinkle their forehead.

Question 18

What nerve supplies the parotid gland?

Answer 18

Auriculotemporal nerve.

Question 19

Where does the IAN pass through the mandible?

Answer 19

Mandibular foramen.

Question 20

Where does the mental nerve pass through the mandible?

Answer 20

Mental foramen.