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Oral Anatomy > Overview of the Dentitions > Flashcards

Overview of the Dentitions Flashcards

1
Q

heterodont

A

having teeth that are different classes/types

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1
Q

homodont

A

having teeth that are anatomically the same

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2
Q

monophyodont

A

one set of teeth in a lifetime

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3
Q

diphyodonts

A

two sets of teeth in a lifetime

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4
Q

polyphyodonts

A

endless succession of teeth

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5
Q

oral cavity

A

lined with mucous membrane tissue
two major areas: vestibule and oral cavity proper

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6
Q

vestibule

A

space between teeth and inner mucosal lining of the cheeks and lips, bounded by lips and cheeks and gums and teeth

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7
Q

oral cavity proper

A

space contained within the upper and lower dental arches, bounded by palate and floor of mouth

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8
Q

maxillary arch

A

fixed, immoveable, part of skull

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9
Q

mandibular arch

A

moveable via temporomandibular joint

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10
Q

quadrants

A

quadrant 1: right maxillary quadrant
quadrant 2: left maxillary quadrant
quadrant 3: left mandibular quadrant
quadrant 4: right mandibular quadrant

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11
Q

anterior vs posterior teeth

A

canines and incisors are anterior teeth
premolars and molars are posterior teeth

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12
Q

sextants

A

S1- maxillary right posterior
S2- maxillary anterior
S3- maxillary left posterior
S4- mandibular left posterior
S5- mandibular anterior
S6- mandibular right posterior

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13
Q

primary dentition

A

temporary, deciduous/baby, 20 teeth

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14
Q

secondary dentition

A

permanent, adult, 32 teeth

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15
Q

mixed dentition

A

mix of primary and secondary teeth

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16
Q

when does the primary dentition period start

A

eruption of primary mand central incisor
~6 months-6 years

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17
Q

when does the mixed dentition period start

A

eruption of perm mand first molar
~6 years-12 years

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18
Q

when does the permanent dentition period start

A

shedding of last primary tooth
after ~12 years

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19
Q

succedaneous teeth

A

permanent teeth that succeed or replace primary teeth (5 in each quadrant: central, lateral, canine, and 2 premolars)

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20
Q

nonsuccedaneous teeth

A

permanent teeth that do not replace any teeth in the primary dentition (the three permanent molars)

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21
Q

succedaneous teeth are replaced by

A

20 deciduous teeth replaced by 20 permanent teeth
2 deciduous incisors replaced by 2 permanent incisors
1 deciduous canine replaced by 1 permanent canine
2 deciduous molars replaced by 2 premolars
3 permanent molars are not succedaneous

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22
Q

dentition

A

natural teeth in the jawbones

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23
Q

midline

A

midsagittal plane; median, center of the arch

24
arches
maxillary and mandibular
25
quadrant
2 per arch = 4 total
26
sextants
3 per arch = 6 total
27
alveolar process
bony extension for both maxilla and mandible that contains each tooth socket
28
alveolus
bony socket for roots of tooth/teeth held in the alveolar process with the periodontal ligament
29
gingiva
ends where pale pink ends and becomes darker gums external portion of the periodontium
30
periodontal ligament
joins the cementum to the alveolar bone
31
anteriors
central incisors, lateral incisors, canines
32
posteriors
premolars (bicuspids), molars
33
form and function of teeth
mastication, esthetics, phonetics
34
mastication
biting and cutting, piercing and tearing, grinding
35
incisors
single rooted with an incisal edge, front of mouth, cut food without heavy force, central and lateral
36
canines
cuspids, corners of each arch, cutting and tearing food, requires force, one canine per quad in each primary and secondary dentition
37
premolars
cross between canines and molars, tear and hold food, broader surface for grinding food, two sets on permanent dentition, no premolars in primary dentition
38
molars
larger than premolars, more cusps, chewing/grinding, two sets in the primary dentition; 3 sets in the secondary
39
teeth protect and preserve the _______
periodontium
40
teeth provide a ______ for food
pathway
41
incisors shape
labial/lingual: trapezoid proximal: triangle
42
canines shape
labial/lingual: pentagon proximal: triangle
43
premolars shape
buccal/lingual: pentagon proximal: trapezoid (Max), rhomboid (Mand)
44
molars shape
buccal/lingual: trapezoid proximal: trapezoid (Max), rhomboid (Mand)
45
anatomical crown
part of the tooth that is usually covered by enamel
46
clinical crown
the part of the tooth that projects/is visible above the gum
47
anatomical vs clinical crown
clinical crown is part of the anatomical crown that is visible and not covered by gingiva
48
root
anatomical root: part of the tooth that is covered with cementum and is found below the CEJ clinical root: anatomical root covered by gingival tissue (not visible in the mouth)
49
cementoenamel junction (CEJ)
line around perimeter of tooth where the enamel covering the crown of the tooth meets the cementum covering the root debridement: sensitivity, distinguish CEJ from hard deposit
50
dentin
hard, calcified tissue covered by enamel and/or cementum largest harder than bone, softer than enamel
51
dentino-enamel junction
boundary between the enamel and the underlying dentin
52
pulp cavity/space
center of the tooth; entire space that is occupied by the pulp most vital, living tissue blood vessels and nerves consists of: chamber, canal, horn
53
DAQT system
D- Dentition A-Arch Q-Quadrant T-Tooth
54
palmer system
consists of a symbol designating the quadrant of the tooth and a number indicating the position from the midline adult teeth 1-->8 primary teeth A-->E
55
universal system
permanent teeth numbered 1-->32 primary teeth A-->T count continues from quad 1-->2 then drops to quad 3
56
international standards organization (ISO) system
by WHO, based on FDI two-digit numbering system... first number is quadrant (#1-2-3-4), second number is the tooth from the midline of the face (#1-#8) primary teeth first number is quadrant (#5-6-7-8), second number is tooth from midline (#1-#5)
57
iso system for sextants
starts upper right posterior then moves anterior to upper left posterior then lower left posterior and around 03, 04, 05, 06, 07, 08
58
most dental professionals will refer to the sextants numerically as the following
1, 2, 3, 4, 5, 6 upper right to upper left to lower left to lower right

Oral Anatomy (4 decks)

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