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Head neck and dental anatomy
Chapter 1 vocab
22
Anatomy
Undergraduate 1
10/02/2012

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Term
Dentition
Definition
the maxilla and mandible together form 2 arches that make up ones dentition, or set of teeth
Term
Primary (deciduous)
Definition
first set of teeth (baby teeth)
Term
exfoliate
Definition
to shed
Term
Mixed dentition
Definition
when deciduous and permanent teeth are present in the mouth at the same time
Term
succedaneous
Definition
permanent teeth that replace or succeed deciduous teeth
Term
diphyodonts
Definition
having 2 sets of dentition in your life
Term
polyphyodonts
Definition
having several sets of teeth throughout life
Term
heterodonts
Definition
having different types of teeth in 1 dentition
Term
Incisors
Definition
four front teeth with sharp biting edges
Term
canines
Definition
also called cuspids,have 1 pointed cusp to tear food
Term
premolars
Definition
also called bicuspids, posterior teeth having 2 major cusps, to tear and crush food. named in sequence first premolar, second premolar.
Term
molars
Definition
broad back teeth having several cusps, used to chew crush, and grind food. named in sequence first molar, second molar, third molar.
Term
anterior
Definition
teeth in the front of the mouth, include incisors and canines.
Term
posterior
Definition
teeth in the back of the mouth, include premolars and molars
Term
Eruption
Definition
occur at 6-8 months, the moving of the tooth occlusialy. first tooth to erupt, central incisor.
Term
at what age are all deciduous erupt?
Definition
2 1/2-3 years of age
Term
active eruption
Definition
the emergence of the tooth from its position in the jaw, continues until the crown is completely exposed
Term
passive eruption
Definition
the increased exposure of the tooth. as a person ages, the gingiva recedes so the clinical crown is greater.
Term
attrition
Definition
wearing away by normal use (chewing biting)
Term
abrasion
Definition
Result of wearing away by mechanical wear such as brushing too hard.
Term
mastication
Definition
to chew
Term
How many teeth is the deciduous/primary dentition?
how many teeth in the permanent dentition?
Definition
20 in primary
32 in permanent
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