Lecture 33 DA Flashcards Preview

Anatomy: Viscera and Visceral Systems > Lecture 33 DA > Flashcards

Flashcards in Lecture 33 DA Deck (9):
1

Why is adrenaline used in dental practice?

It is a vasoconstrictor and prevents anaesthetics from dispersing too quickly.
This also helps stop bleeding.

2

What happens if the dentist injects into a vein?

It will reach the heart and cause tachycardia.

3

What happens if the dentist injects into an artery?

That side of the face will turn white from vasoconstriction, and also numb.

4

What are the main nerves that concern dental practice?

Maxillary and mandibular divisions of the trigeminal nerve.
Facial nerve as well to a lesser extent.

5

How does the mandibular division of the trigeminal nerve enter the mandible?

The mandible is a very dense bone, and the nerve enters through the mandibular canal found posterolaterally. Hard to anaesthetise.

6

Is the maxillary division of the trigeminal nerve easy to anaesthetise compared to the mandibular division?

Yes, the maxilla is porous, whereas the mandible is very dense.

7

Where are maxilla blocks done?

At points were the maxillary division exits bone to the face.

8

What happens if the dentist injects too deep in a mandibular division block?

Can hit the parotid gland, which is innervated by the facial nerve. That side of the face will droop with no blinking for up to 24h.

9

Why are teeth used as forensic identifiers (name 3 reasons)?

Teeth are unique to the individual the same way fingerprints are. They are also very fire-resistant and durable. Dental records are also better kept.