LEC 23 - Dental Radiographs Flashcards
What are the two major reasons you would want to do dental x-rays?
Periodontal disease and routine professional prophylaxsis
What is a radiographic sign that you have periodontal disease?
Destruction of the periodontal ligament space
What is the furnication?
Where the two roots in a molar come together
What is the alveolar bone?
The part of the jaw bone surrounding the tooth
What is the cementoenamel junction?
This is where the crown of the tooth meets the gum line.
What is the white line on radiographs that runs with the periodontal ligament?
Lamina dura denta
What is the direction toward the tip of the tooth?
Coronal
What is the direction toward the root of the tooth?
Apical
What are two important things to note when looking at the gum line?
Recession and resorption
How can you “age” a dog based on dental radiographs?
With age the dentin gets thicker while the pulp cavity becomes smaller.
What is the standard way of view dental radiographs?
Labial mounting. Positioned to be as if the patient was looking at you. (Their left is your right)
What are the six basic steps to analyzing a dental radiograph?
Determine species, jaw, and teeth – Periodontal ligament space — Alveolar bone height/density — Root apex and periapical region — Roots and root canals – Crowns
Who has more teeth dogs or cats?
Dogs
How will a resorptive lesion appear on radiographs?
Decreased density of the bone, some may be completely eatten away
Who do you see resorption in most commonly, dogs or cats?
Cats
What gives you a sign that there is a periapical absess?
There will be an increased spacing in the peridontal ligament space along with an increased lucency at the root
What tells you that a dog might have pulpitis?
There will be widening of the pulp cavity
What are the treatment options for pulpitis?
Root canal or tooth removal
What is a common sign of severe periodontal disease?
Alveolar bone loss
How can you tell if a slab fracture is acute or chronic issue?
If pulp exposure is present and pulp is still pink the fracture is most likely acute. Also look for presence of calculus
How long does it take calculus to form?
~ 3 days
What would a slab fracture, with pulp exposure look like after a year?
No longer would be pink but instead black. Tooth most likely would be dead.
If doing a root canal on a multiple rooted tooth what is the procedure?
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.
What is one of the most common gingival tumors seen in dogs?
Peripheral odontogenic fibroma
What can cause changes to the jaw bone?
Neoplasia, osteomyolitis, fracture repair, or severe infection
What are the most common teeth that dogs get carries in?
1st and 2nd upper molars
What causes dental caries to occur in dogs?
High carb diets, always ask the owner what they are feeding their dog if you see any carriers.
What is the most common teeth that cats get carriers in?
None
