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45 Cards in this Set
- Front
- Back
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What is the crown?
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the portion of tooth above the gum line, covered by enamel.
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What is the root?
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The portion of the tooth below the gum line, covered by cementum
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What is enamel?
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The hardest tissue in the body.95% calcium. Formed by ameloblasts- cannot repair itself
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What is dentin?
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2nd hardest tissue in the body. Covered by enamel on the crown and cementum on the root. Formed by odontoblasts. Can repair itself. (tertiary dentin=brown spot)
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What is cementum?
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Covers root. Protects dentin and seals openings of dentinal tubules. Formed by cementoblasts.
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What is pulp cavity?
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Soft tissues of the tooth- odontoblasts, arterioles, venules, nerves, connective tissue. Cannot expand.
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What is the apex or apical delta?
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entry of blood vessels, nerves and lymphatics at bottom of root.
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What is periodontal ligament?
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net-like elastic ligament attaching cementum to bony alveolus- shock absorber
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What is alveolus?
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bony socket where tooth resides. Tip=alveolar crest-declines during lifetime orif diseased.
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What is gingiva?
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Gum tissue. Protects bone and attachment of tooth. Each tooth has collar of gingiva.
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What is gingival sulcus?
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The attachment of gingiva to cementum. Normal depth in dogs = 0-3mm/ feline = 0-1mm
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What is furcation?
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the space between the roots of a tooth
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what is apical?
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towards the root
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coronal
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towards the crown
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cervical
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toward the neck- junction of the coronal and apical tooth
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mesial
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toward the midline of the dental arch
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rostral
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toward the front of the head-also mesial in the cheek teeth.
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distal
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away from midline of the dental arch- also caudal in the cheek teeth.
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buccal
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surface facing the cheeks
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facial
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surface facing the front lips
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labial
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surface facing the cheeks in the mandible.
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lingual
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surface of mandibular teeth facing the tongue
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palatal
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surface of maxillary teeth facing the hard palate
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sublingual
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surface beneath the tongue
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interproximal space
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space between adjacent teeth
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interproximal surface
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the adjacent surfaces of two adjoining teeth
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incisal
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biting surface of incisors
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occlusal
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grinding surface of the molars
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when do deciduous teeth erupt in dogs?
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3-4 weeks for incisors, 3 weeks for canines and 4-12 weeks for premolars
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when do deciduous teeth erupt in cats?
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incisors= 2-3 weeks
canines= 3-4 weeks premolars= 3-6 weeks |
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when do permanent teeth erupt in dogs?
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incisors= 3-5 months
canines= 4-6 months premolars= 4-6 months molars= 5-7 months |
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when do permanent teeth erupt in cats?
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incisors= 3-4 months
canines= 4-5 months premolars= 4-6 months molars = 4-5 months |
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what is the dental formula for the dog
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permanent=42
2(I3/3, C1/1, P4/4, M2/3) decid= same except only 3P and noM |
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dental formula for the cat
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permanent= 30
2(I3/3, C1/1, P3/2, M1/1) decid= same except no M |
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which teeth are used for tearing?
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canines and premolars
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what is the true shearing teeth?
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carnassial-
dog=4th upper PM and lower 1st M. cats= 4th upper PM and lower molar |
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what are the bones of the face?
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incisive-upper incisors
maxilla-upper canine and cheek teeth palatine-hard palate mandible-all of lower teeth |
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what are the nerves of the mouth?
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trigeminal nerve=5th cranial nerve, chewing.
hypoglossal nerve-tongue |
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what is the pH of saliva?
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7.5-promotes plaque
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where are salivary glands?
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parotid-upper P4
sublingual-lingual to lower cheek teeth zygomatic-lateral to M2 |
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where is the heaviest calculus
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buccal surface upper cheek and canines
lingual surface of lower teeth buccal surface of lower cheek teeth palatal surface of upper cheek teeth |
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what is another name for the cervical line?
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CEJ- cemento-enamel junction
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what is the triadan numbering system?
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mouth has 4 quadrants- 1 is upper R, 2 upper L,3 is lowerL, 4 lower R-every #ending with 4 is a canine, every # ending with 9 is a 1st molar.
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how many molars does the dog have?
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2 on top, 3 on bottom
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how many molars does the cat have?
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one on top, 1 on bottom.
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