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Oral anatomy and histology > Introduction to Dentitions > Flashcards

Introduction to Dentitions Flashcards

(50 cards)

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1
Q

Parts of Tooth Assessment 5

A

Dental Charting: graphic representation of the condition of the patient’s teeth observed on a specific date

Care Planning: Using collection of data to formulate comprehensive treatment plan

Communication: Enhanced by accurate documentation

Legal Documentation: Patient’s record is a legal document admissible in court of law

Forensic Uses: Sometimes only means of identification

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2
Q

What teeth types are in each dentition

A

primary - 20: Incisors (8), Canines (4), Molars (8)

permanent - 32: Incisors (8), Canines (4), Premolars (8), Molars (12)

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3
Q

what are the tooth quadrants and associated tooth numbers

A

right maxillary quadrant: 1-8
left maxillary quadrant: 9-16
right mandibular quadrant: 25-32
left mandibular quadrant: 17-24

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4
Q

anterior teeth vs posterior teeth

A

Anterior teeth go from canine to canine

maxillary anterior: 6-11

mandibular anterior: 22-27

posterior teeth go from premolar to molar

maxillary posterior (right): 1-5
maxillary posterior (left): 12-16
mandibular posterior (right): 28-32
mandibular posterior (left): 17-21

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5
Q

what is the tooth designation system for primary/deciduous teeth vs permanent

A

primary uses letters (A-T)

permanent uses numbers (1-32)

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6
Q

what are the biting surfaces of teeth

A

anterior teeth (canine to canine): incisal surface

posterior teeth (premolar/molars): occlusal surface

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7
Q

crowns of all teeth have how many surfaces

A

5

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8
Q

based on the textbook, what are the 5 surfaces of the teeth

A

facial: labial or buccal
lingual/palatal
masticatory: occlusal or incisal
mesial
distal

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9
Q

facial surfaces can be __ or ____

A

buccal or labial

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10
Q

buccal surface

A

surfaces of premolars and molars that are closest to the cheek

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11
Q

labial surface

A

surface of incisors and canines that are close to the lips

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12
Q

palatal surface

A

toward the palate, used for maxillary teeth

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13
Q

lingual surface

A

The surface of the tooth toward the tongue. Used for mandibular teeth (bottom of mouth)

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14
Q

what are the proximal surfaces

A

mesial: toward the midline
distal: away from the midline

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15
Q

what are the 3 dentition PERIODS

A

primary dentition: 6 months to 6 years

mixed dentition: 6yrs-12 yrs

permanent dentition: 12 years on

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16
Q

describe primary dentition (7)

A

begins with the eruption of the mandibular central incisor

ends with eruption of first permanent tooth

20 teeth total

5 per quadrant (2 incisors, 1 canine, 2 molars)

calcification begins 4-5 months in fetal life to 3-4 years after birth

eruption happens in pairs

jaws are growing

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17
Q

describe mixed dentition

A

begins with eruption of permanent mandibular molar

ends with the loss of the last primary tooth

both primary and permanent teeth in oral cavity

jaws are growing (fastest rate)

awkward stage

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18
Q

what stage are the jaws growing at the fastest rate

A

mixed dentition

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19
Q

practical application for mixed dentition

A

tooth color changes > Parents want to know why their kids tooth changed

halitosis

size differences > becomes larger than baby teeth

tooth brush selection

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20
Q

what are the components of permanent dentition 6

A

begins with loss of last primary tooth

ends with eruption of last permanent tooth

32 total

16 in each arch

begins to calcify after birth until 25 years of age

jaw growth slows down and eventually stops

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21
Q

describe incisors 3

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A

four in each arch, 8 total

designed to bite and cut

lingual fossa shaped as a shovel

22
Q

describe canines 6

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A

2 in each arch, 4 total

for holding, grasping, piercing, tearing

longest teeth in the mouth from root to crown

cornerstone of the mouth

major influence on ones facial appearance

have one cusp (stated in textbook)

23
Q

which teeth are the best anchored

24
Q

describe premolars (5)

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A

4 in each arch, 8 total

AKA bicuspids (usually have 2 cusps)

has occlusal edges

grind food and assist canines in tearing

only found in permanent dentition

25
t/f premolars are found in primary dentition
FALSE
26
describe molars (7)
6 in each arch, 12 total largest and strongest teeth have 4 or more cusps grind food have occlusal edges posteriorly located jaw exerts strongest forces onto these teeth
27
T/F molars look similar to each other
false
28
describe enamel 4
covers the crown thickest over the crown, gets thinner toward the cervical line color: varies with thickness and mineralization, white=thick, yellow=thin composition: 96% inorganic matter, 3% water, 1% organic matter
29
describe dentin (5) what lays superficial to it?
largest portion of the tooth hard, dense, calcified tissue softer than enamel, harder than cementum & bone yellow in color, elastic in nature Composition: 70% inorganic, 30% organic matter and water covered by enamel on the crown and cementum on the root
30
describe the types of dentin (3)
primary dentin: formed before the apex of the tooth is completed secondary dentin: formed after completion of the apex and will form for the life of the tooth reparative dentin: laid down in response to caries or trauma
31
list the components of a tooth from deep to superficial
pulp dentin cementum(root) /enamel (crown)
32
describe cementum 5
covers the root could be voids that expose dentin main function is to anchor, attaches tooth to alveolar bone thinner at cervical line, thickens toward apex composition: 65% inorganic, 23% organic, 12% water
33
types of cementum
acellular: covers entire anatomical root cellular: presents on apical 3rd of root, can reproduce itself
34
describe pulp functions 4
- nourishing - sensory - repairs dentin - main function to lay down dentin
35
what is the cementoenamel junction
external line at the neck/cervix of the tooth. separates the enamel of the anatomic crown form the cementum of the anatomic root.
36
what is the dentinoenamel junction
inner surface of the enamel that meets the dentin.
37
what is the dentinocemental junction
part where outer line of dentin and inner line of cementum meet.
38
what is the difference between the anatomic and clinical crown of the tooth
anatomic crown: the actual crown of the tooth that is covered by enamel, remains mostly constant throughout life of tooth, except for presence of attrition and physical wear clinical crown: the part that you can SEE, above the gingiva, height is determined by the location of the marginal gingiva, can change over time due to recession
39
when we talk about the crown which are we referring to
anatomic crown
40
difference between anatomic and clinical root
anatomic: part that is covered by cementum clinical: part of the root that is visible, can change over time via gingival recession
41
define eruption exfoliation resorption
eruption: moving of a tooth through it’s surrounding tissue (when a tooth pierces the gum) exfoliation: when you lose a tooth and the roots of the primary teeth are resorbed resorption: removal of hard tissue/bone
42
T/F the height of the CEJ curvature is lesser than the mesial side of the tooth than the distal
FALSE, the curvature is GREATER on the mesial side
43
what is the contact area interproximal space
part where two adjacent teeth physically touch gap/space between two teeth
44
posterior teeth have how many line angles per tooth, name them
8 mesiobuccal, distobuccal, mesiolingual, distolingual, mesio-occlusal, disto-occlusal, bucco-occlusal, and linguo-occlusal
45
anterior teeth have how many line angles per tooth
6 mesiolabial, distolabial, mesiolingual, distolingual, labioincisal, and linguoincisal
46
describe roots of the teeth 4
widest at the CEJ and caper towards the apex have indentations or root concavities teeth can be single rooted or multiple-rooted with bifurcation or trifurcation anchored in the alveolar process (alveolus)
47
define furcation
dividing point of roots of multirooted tooth bifurcation - tooth with 2 roots trifurcation- tooth with 3 roots
48
succedaneous nonsuccedaneous
permanent teeth with primary predecessors; premolars, canines, incisors teeth that do not succeed or replace primary teeth; permanent molars
49
impaction
unerupted or partially erupted tooth that is positioned against another tooth, bone, or even soft tissue so that complete eruption becomes impossible
50
edentulous partially edentulous anodontia
complete loss of teeth person is missing most of their teeth, not all absence of a single tooth or multiple teeth due to lack of initiation; was born without it

Oral anatomy and histology (15 decks)

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