Dentistry Flashcards
How many deciduous teeth does a dog have?
28
How many permanent teeth does a dog have?
42
How many deciduous teeth does a cat have?
26
How many permanent teeth does a cat have?
30
When do the deciduous teeth emerge in a dog?
Incisors = 3-4 weeks
Canines = 3 weeks
Pre-molars = 2-12 weeks
Molars = N/A
When do the permanent teeth emerge in a dog?
Incisors = 3-5 months
Canines = 4-6 months
Pre-molars = 4-6 months
Molars = 5-7 months
When do the deciduous teeth emerge in a cat?
Incisors = 2-3 weeks
Canines = 3-4 weeks
Pre-molars = 3-6 weeks
When do the permanent teeth emerge in a cat?
Incisors = 3-4 months
Canines = 4-5 months
Pre-molars = 4-6 months
Molars = 4-6 months
How many roots are in the teeth in the mandible of the dog?
Incisor - 1
Canine - 1
PM1 - 1
PM2 - 2
PM3 - 2
PM4 - 2
M1 - 2
M2 - 2
M3 - 1
How many roots are in the teeth in the maxilla of the dog?
Incisor - 1
Canine - 1
PM1 - 1
PM2 - 2
PM3 -2
PM4 - 3
M1 - 3
M2 - 3
How many roots are in the teeth in the mandible of the cat?
Canine - 1
Incisor - 1
PM1 - missing
PM2 - missing
PM3 - 2
PM4 - 2
M1 - 2
What are the 5 points of occlusion?
- Midline match
- Incisor overlap
- Canine interlock
- Premolar interdigitation
- Carnassial overlap
What is a class I malocclusion?
1-2+ teeth abnormally aligned
What is a class II malocclusion?
Maxilla incisor and canine line is rostral to the mandibular line (maxilla growth > mandible growth)
What is a class III malocclusion?
Mandible incisor and canine line is rostral to maxilla line
What is a class IV malocclusion?
Discrepancy between right and left (e.g. The entire mandible shifted to one side)
What is attrition?
Tooth-on-tooth damage
What is abrasion?
Tooth-on-object (like rock or bone) damage
What is an uncomplicated crown fracture?
No pulp exposure
What is a complicated crown fracture?
Pulp exposure
What is the explorer used to evaluate?
- Cementum
- Dentin
- Enamel
What is the probe used to evaluate?
Pocket depth
What is normal probing depth in a dog?
1 - 3 mm
What is normal probing depth in a cat?
0.5 - 1 mm
** What is the periodontium? **
4 structures that attach the teeth to the jaw: Gingiva, alveolar bone, periodontal ligament, cementum.
What are the 4 pieces of evidence of periodontal disease?
- Furcation involvement
- Gingival recession
- Periodontal probing depth
- Periodontal attachment loss
Describe stage 0 periodontal disease…
No gingivitis
No inflammation
Normal periodontal probing
Describe stage 1 periodontal disease…
Gingivitis present
Inflammation present
REVERSIBLE (NO periodontal attachment loss and normal periodontal probing)
Describe stage 2 periodontal disease…
Gingivitis/periodontal inflammation with
Describe stage 3 periodontal disease…
Gingivitis/periodontal inflammation with 25-30% periodontal attachment loss
Describe stage 4 periodontal disease…
Gingivitis/periodontal inflammation with >50% periodontal attachment loss
Describe type I tooth resorption…
Periodontal ligament still present
Describe type II tooth resorption…
Periodontal ligament absent
Describe type III tooth resorption…
One root periodontal ligament present and one root periodontal ligament absent
Describe stage 1 of tooth resorption…
Mild loss of hard tissue (enamel affected)
Describe stage 2 of tooth resorption…
Moderate loss of hard tissue (dentin affected)
Describe stage 3 of tooth resorption…
Severe loss of hard tissue (pulp affected)
Describe stage 4a of tooth resorption…
Crown and root affected evenly
Describe stage 4b of tooth resorption…
Crown affected more than root
Describe stage 4c of tooth resorption…
Root affect more than crown
Describe stage 5 of tooth resorption…
NO recognizable tooth/root structure remains
If a cat is missing which tooth, they have a 95% likelihood of getting tooth resorption?
Mandibular PM 3
What are the 2 surgical treatments for tooth resorption in a cat?
- Surgical extraction
2. Crown amputation
What are the 3 treatment methods for a complicated crown fracture?
- Extraction
- Root canal
- Vital pulp therapy
What are the treatment methods for an uncomplicated crown fracture?
NONE needed if no clinical signs
What are the 2 treatment methods for an intrinsically stained tooth?
- Extraction
- Root canal
- Monitor any focally stained areas
What are the treatment methods for persistent deciduous teeth?
- Extraction ASAP
2. Orthodontic therapy
How does one pursue missing teeth?
Confirm that the tooth is indeed missing. If the tooth is not missing, do an extraction.
What are the indications for an extraction?
- Persistent deciduous teeth
- Crowded teeth
- Unerupted teeth
- Non-vital teeth
- Periodontally compromised
- Evidence of decay
- Supernumery (too many teeth)
- Teeth causing malocclusion
What are the 3 most common malignant oral masses in the dog?
Malignant melanoma > SCC > fibrosarcoma
What are the 3 most common malignant oral masses in the cat?
SCC > fibrosarcoma > malignant melanoma
What is the “gold standard” for oral hygiene in the dog or cat?
Brushing (every 24 hours)
