LEC 23 - Dental Radiographs

Question 1

What are the two major reasons you would want to do dental x-rays?

Answer 1

Periodontal disease and routine professional prophylaxsis

Question 2

What is a radiographic sign that you have periodontal disease?

Answer 2

Destruction of the periodontal ligament space

Question 3

What is the furnication?

Answer 3

Where the two roots in a molar come together

Question 4

What is the alveolar bone?

Answer 4

The part of the jaw bone surrounding the tooth

Question 5

What is the cementoenamel junction?

Answer 5

This is where the crown of the tooth meets the gum line.

Question 6

What is the white line on radiographs that runs with the periodontal ligament?

Answer 6

Lamina dura denta

Question 7

What is the direction toward the tip of the tooth?

Answer 7

Coronal

Question 8

What is the direction toward the root of the tooth?

Answer 8

Apical

Question 9

What are two important things to note when looking at the gum line?

Answer 9

Recession and resorption

Question 10

How can you “age” a dog based on dental radiographs?

Answer 10

With age the dentin gets thicker while the pulp cavity becomes smaller.

Question 11

What is the standard way of view dental radiographs?

Answer 11

Labial mounting. Positioned to be as if the patient was looking at you. (Their left is your right)

Question 12

What are the six basic steps to analyzing a dental radiograph?

Answer 12

Determine species, jaw, and teeth – Periodontal ligament space — Alveolar bone height/density — Root apex and periapical region — Roots and root canals – Crowns

Question 13

Who has more teeth dogs or cats?

Answer 13

Dogs

Question 14

How will a resorptive lesion appear on radiographs?

Answer 14

Decreased density of the bone, some may be completely eatten away

Question 15

Who do you see resorption in most commonly, dogs or cats?

Answer 15

Cats

Question 16

What gives you a sign that there is a periapical absess?

Answer 16

There will be an increased spacing in the peridontal ligament space along with an increased lucency at the root

Question 17

What tells you that a dog might have pulpitis?

Answer 17

There will be widening of the pulp cavity

Question 18

What are the treatment options for pulpitis?

Answer 18

Root canal or tooth removal

Question 19

What is a common sign of severe periodontal disease?

Answer 19

Alveolar bone loss

Question 20

How can you tell if a slab fracture is acute or chronic issue?

Answer 20

If pulp exposure is present and pulp is still pink the fracture is most likely acute. Also look for presence of calculus

Question 21

How long does it take calculus to form?

Answer 21

~ 3 days

Question 22

What would a slab fracture, with pulp exposure look like after a year?

Answer 22

No longer would be pink but instead black. Tooth most likely would be dead.

Question 23

If doing a root canal on a multiple rooted tooth what is the procedure?

Answer 23

You do a root canal to all the roots because there is an open pathway and therefor bacteria will be present in all root tips.

Question 24

What is one of the most common gingival tumors seen in dogs?

Answer 24

Peripheral odontogenic fibroma

Question 25

What can cause changes to the jaw bone?

Answer 25

Neoplasia, osteomyolitis, fracture repair, or severe infection

Question 26

What are the most common teeth that dogs get carries in?

Answer 26

1st and 2nd upper molars

Question 27

What causes dental caries to occur in dogs?

Answer 27

High carb diets, always ask the owner what they are feeding their dog if you see any carriers.

Question 28

What is the most common teeth that cats get carriers in?

Answer 28

None