Introduction to dentistry Flashcards
What is the apical delta
supplies nerve and blood vessels
What is the enamel?
hardest tissue in mammalian body; outermost layer
What is cementum?
outer layer of the root
- acts functionally as periosteum of the root
- part of the periodontal support apparatus
what is dentin?
- main component of the tooth
- consists of multiple tubules & sensory nerve fibers
- similar hardness to bone but softer than enamel
continually produced by living, healthy tooth
What is the mucogingival junction?
where attached gingiva & oral mucosa meets
What us the gingival sulcus
- space between free gingiva & the tooth
- commonly traps debris
What are the components of the periodontal support apparatus/ perodontium?
- alveolar bone
- lamina dura
- periodontal ligament
- cementum
- gingiva
What is the lamina dura?
dense cortical bone forming the wall of the alveolus next to the teeth
What is the periodontal ligament?
connective tissue that fills the space between tooth and alveolar bone
What is the periodontal ligament composed of?
collagen, elastic fibers, blood vessels, nerves & lymphatics
Purpose of periodontal ligament
shock absorption, attachment of the teeth, supply of nutrients to alveolar bone & cementum
Deciduous teeth formula K9
2x (3/3, 1/1, 3/3, 0/0)
How many deciduous teeth do dogs have?
28
Dental formula for adult canine
2x (3/3, 1/1, 4/4, 2/3)
How many teeth does adult dog have?
42