Oral Cavity Flashcards
What are the skull types?
Mesaticephalic
Brachycephalic
Dolichocephalic
What is the most common skull type?
Mesaticephalic
Describe mesaticephalic skulls
Head shape of medium proportions
In breeds such as labs, poodles, and beagles
Describe brachycephalic skulls
Short, wide head
May have crowded/rotated premolar teeth
In breeds such as pugs, bulldogs, and persian cats
Describe dolichocephalic skulls
Long, narrow head type
In breeds such as sighthounds and collies
Malocclusions are common in caudal mouth
What are the tooth types?
Homodont
Heterodont
What are the types of tooth development?
Monophyodont
Polyphyodont
Diphyodont
What are the crown types?
Brachydont
Hypsodont
What species have the brachydont crown type?
Dogs
Cats
Primates
Describe brachydont crown type
Shorter crow:root ratio
What species have the hypsodont crown type?
Horse
Cow
Describe hypsodont crown type
Submerged, longer anatomical or reserved crown and comparatively short roots
What are diphyodont teeth?
There are 2 sets of teeth
What are heterodont teeth?
Different sizes and shapes
What are brachydont teeth?
Don’t continually erupt
Describe the 4th premolar
A 3-rooted tooth
Often referred to as the carnassial tooth
How many molars are there behind the 4th premolar?
2
What runs through the dental arch?
Palatine artery
What is the 2nd premolar on the mandible used as a landmark for?
Deadening the nerve at that point to do some work at the rostral end of the mouth
What is the canine deciduous dental formula?
I 3/3
C 1/1
PM 3/3
All multiplied by 2 is 28 teeth
What is the canine permanent dental formula?
I 3/3 C 1/1 PM 4/4 M 2/3 All multiplied by 2 is 42 teeth
What is the root structure of incisors, canines, and PM1 of an adult dog?
1
What is the root structure for maxillary PM2 and 3 of an adult dog?
2
What is the root structure of maxillary PM4 of an adult dog?
3
What is the root structure of maxillary M1 and 2 of an adult dog?
3
What is the root structure of mandibular PM2, 3, and 4 of an adult dog?
2
What is the root structure of mandibular M1 and 2 of an adult dog?
2
What is the root structure of mandibular M3 of an adult dog?
1
What is the feline deciduous dental formula?
I 3/3
C 1/1
PM 3/2
All multiplied by 2 is 26 teeth
What is the feline permanent dental formula?
I 3/3 C 1/1 PM 3/2 M 1/1 All multiplied by 2 is 30 teeth
What premolars do cats not have?
First on top
First or second on the bottom
What is the root structure of incisors and canines of an adult cat?
1
What is the root structure of maxillary PM2 of an adult cat?
1
What is the root structure of maxillary PM3 of an adult cat?
2
What is the root structure of maxillary PM4 of an adult cat?
3
What is the root structure of maxillary M1 of an adult cat?
2
What is the root structure of mandibular PM3 and 4 of an adult cat?
2
What is the root structure of mandibular M1 of an adult cat?
2
What is the equine deciduous dental formulas?
I 3/3
C 0-1/0-1
PM 3/3
What is the equine permanent dental formula?
I 3/3 C 0-1/0-1 PM 3(4)/3(4) M 3/3 All multiplied by 2 is 40-44 teeth
What is the cattle/small ruminant deciduous dental formula?
I 0/4
PM 3/3
All multiplied by 2 is 20 teeth
What is the cattle/small ruminant permanent dental formula?
I 0/4
PM 3/3
M 3/3
All multiplied by 2 is 32
What is the swine deciduous dental formula?
I 3/3
C 1/1
PM 3/3
All multiplied by 2 is 28 teeth
What is the swine permanent dental formula?
I 3/3 C 1/1 PM 4/4 M 3/3 All multiplied by 2 is 44 teeth
What is occlusion?
Relationship of the mandibular and maxillary teeth when closed or during excursive movements of the mandible
What is the hardest substance in the body?
Enamel
What is enamel made of?
96% inorganic hydroxyapatite crystals, magnesium
What is enamel formed by?
Ameloblasts
What is cementum?
The outer covering of the root
What is cementum produced by?
Cementoblasts
What constitutes the bulk of the tooth?
Dentin
What is dentin formed by?
Odontoblasts
What is the periodontal ligament?
The attachment apparatus of the tooth