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Dental Anatomy & Occlusion 101 > Midterm 1 (Theory) > Flashcards

Midterm 1 (Theory) Flashcards

(103 cards)

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1
Q

What is the mandibular?

A

This refers to the lower jaw or the mandible

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2
Q

What is the maxillary?

A

This refers to the upper jaw or the maxilla

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3
Q

What joint do the maxilla and mandible articulate?

A

The temporomandibular joint ( TMJ )

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4
Q

What are the maxillary teeth?

A

These are the teeth arranged in the upper maxillary arch

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5
Q

What are mandibular teeth?

A

These are teeth arranged in the lower mandibular arch

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6
Q

What are the 4 quadrants in the mouth?

A

I. Maxillary upper right
2. Maxillary upper left
3. Mandibular lower right
4. Mandibular lower left

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7
Q

How many dentitions are present for humans? Name them

A

There are 2 dentitions present for humans; primary & secondary

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8
Q

What is the scientific name for a primary dentition?

A

Deciduous

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9
Q

What is a secondary dentition called?

A

Permanent dentition.

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10
Q

What is the mixed dentition period?

A

This is the transitional phase when both deciduous & permanent teeth are present

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11
Q

What is the time frame for a deciduous dentition?

A

6 months - 6 years

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12
Q

What is the timeframe for a mixed dentition

A

6 years - 12 years

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13
Q

What is the timeframe for a permanent dentition?

A

12 years - 25 years

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14
Q

What is the age timeframe for when a dentition is required for wisdom teeth removal?

A

17 - 25 years

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15
Q

Why are deciduous teeth named “decidious”

A

This is because they shed like the leaves of deciduous trees in autumn

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16
Q

What is the timeframe for when deciduous teeth erupt?

A

6 months - 2 years

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17
Q

What are some other names for decidious teeth?

A

Baby teeth, milk teeth, temporary teeth

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18
Q

What are the 5 deciduous teeth?

A

l. Central incisor
2. Lateral incisor
3. Canine
4. 1st deciduous molar
5. 2nd deciduous molar

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19
Q

How many teeth are there in the oral cavity for a child in the deciduous stage?

A

20 in the oral cavity

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20
Q

Describe how many teeth there are in the upper left quadrant (maxillary) for a deciduous?

A

There are 5 teeth in the upper left quadrant

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21
Q

What are permanent teeth?

A

These are tee teeth of tie second or adult dentition

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22
Q

How many teeth does would an 18 year old girl have?

A

32 permanent teeth in the oral cavity

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23
Q

How many maxillary teeth would would an 18 year old have

A

16 maxillary teeth. The individual would have 16 teeth in the maxillary and mandibular region each

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24
Q

During what time period do permanent teeth erupt?

A

6-21 years of age

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25
How many teeth are there in each quadrant for a 20 year old?
8 teeth in each quadrant
26
How many teeth are there in the maxillary arch of a 20 year old?
16
27
What are succedaneous teeth?
These are succeeding deciduous teeth
28
What teeth do incisors and canines replace?
They replace their counter - parts in the deciduous stage. Hence they just transition from deciduous → permanent
29
Which teeth are considered non- succedaneous?
Molars
30
How many types of succedaneous teeth are there? Name them
There are 3 types of succedaneous teeth. A) incisors b) canines C) pre-molars
31
What teeth do pre-molars replace?
They replace deciduous molars
32
How many dental formulas are there? Which ones?
There are 2 types. One for deciduous and one for permanent
33
What is the deciduous dental formula?
I(2/2)+C(1/1)+M(2/2) = 10 Only for I half
34
What is the permanent dental formula?
I(2/2) + C(1/1) + P(2/2) + M (3/3) = 16
35
Dental formula for rats
I(1/1) + C(0/0) + P(0/0) +M(3/3) = 8
36
What is the importance of the tooth numbering system?
They help create short hand systems for recording data and facilitating communication between different dentists.
37
How many type of tooth notation systems are there?
3
38
Name all the different tooth notation systems
Palmer notation systems (symbolic), universal notation system, 2 digit system (fdi)
39
What tooth notation is most universally used and in the UAE?
2 digit system
40
Who was the palmer notation system founded by?
Adolfo Zsigmondy (1861) and Palmer (1970)
41
In what years year was the Palmer notation system recommended?
It was recommended in 1947 by the committee members of the American Dental association
42
In the palmer notation system what anotation is used by a deciduous dentist?
A,B,C,D,E ( the alphabets start from the vertical and horizontal line cross over)
43
What does each alphabet represent in deciduous palmer notation system?
A -represents the Central incisor B- 2nd incisor C - canine D- 1st molar E - 2nd molar
44
How does a permanent dentition annotate the palmer notation system
The numbers 1-8 are used
45
How does a permanent dentition annotate the palmer notation system
The numbers 1-8 are used
46
What is the problem we face with the Palmer notation system?
It is not compatible with technology
47
What is the problem we face with the Palmer notation system?
It is not compatible with technology
48
In what year was the universal notation system recommended?
1968
49
What numbering system is used bya deciduous dentition when using the universal annotation system?
A-T
50
What numbering system is used bya deciduous dentition when using the universal annotation system?
A-T
51
What numbering system is used by a permanent dentition using the universal system?
1- 32
52
What does the 1st number in the 2 digit system indicate?
It indicates which quadrant it is in
53
What does the 2nd digit in the 2 digit system indicate?
This indicates the tooth in the quadrant.
54
What numbers are used by a permanent dentition to identify the quadrants?
1-4
55
What numbers are used by a Deciduous dentition to identify the quadrants?
5 - 8
56
What numbers are used by a Deciduous dentition to identify the quadrants?
5 - 8
57
What is micro anatomy of teeth
Something you can see with your naked eye
58
Anatomical crown?
Is that portion of tooth which is covered by enamel.
59
Clinical crown?
Is the portion of tooth which is visible in mouth.
60
Anatomical root?
This is the part of the tooth covered by cementum
61
Function of cervical line
To separate the root & crown
62
In what scenario would the clinical crown be larger than the anatomical crown?
As the individual grows older the clinical crown can grow longer than the anatomical crown.. Also depends on the level of gingival recession
63
What is the enamel?
1. The hardest tissue 2. Covers the anatomical crown 3. Ectoderm in origin
64
What is the dentin?
A hard tissue but not harder than enamel.forms the main body of the tooth and surrounds the pulp cavity.it is covered by channel in the anatomical crown and cementum min the anatomical root.
65
Name the micro anatomy of from the hardest to the softest tissue.
Enamel → dentin → cementum → bone
66
Name the micro anatomy of from the hardest to the softest tissue.
Enamel → dentin → cementum → bone
67
What is the Denton - enamel junction
internal line of meeting of dentin & enamel in anatomical crown of a tooth.
68
What is the Denton - enamel junction
internal line of meeting of dentin & enamel in anatomical crown of a tooth.
69
What is the dentino-cementum junction?
internal line of meeting of dentin & cementum in anatomical root of a tooth
70
What is the dentino-cementum junction?
internal line of meeting of dentin & cementum in anatomical root of a tooth
71
What is pulp?
living soft tissue which occupies pulp cavity of a vital tooth & contains tooth's blood vessels & nerve supply.
72
What is the pulp canal?
portion of pulp cavity which is located in root of the tooth (also called as root canal)
73
What is the pulp chamber?
enlarged portion of pulp cavity which is found mostly in anatomical crown
74
What is the pulp chamber?
enlarged portion of pulp cavity which is found mostly in anatomical crown
75
What are the pulp horns?
usually pointed incisal or occlusal elongations of pulp chamber which often correspond to cusps, or lobes of teeth
76
What are the pulp horns?
usually pointed incisal or occlusal elongations of pulp chamber which often correspond to cusps, or lobes of teeth
77
Is the apical toramen?
the end of the pulp canal by which pulp tissues connect to the periodontal tissues.
78
Is the apical toramen?
the end of the pulp canal by which pulp tissues connect to the periodontal tissues.
79
What is the alveolar process?
bone which surrounds & supports all teeth in each jaw.
80
What is the alveolus
bony socket portion of alveolar process, into which an erupted tooth is set.
81
What is the alveolus
bony socket portion of alveolar process, into which an erupted tooth is set.
82
What is the crypt?
portion of the alveolar process into which an unerupted tooth is set.
83
What is the periodontal ligament?
fibrous attachment of tooth cementum to the alveolar bone
84
What is the periodontal apparatus
is a system which responsible for holding a tooth in its bony socket.
85
What is the periodontal apparatus.composed of?
a- Periodontal ligaments b- Alveolar bone c- Cementum and; d- Gingiva
86
How many tooth surfaces are there?
5
87
What are the anterior teeth?
Central incisor,lateral incisor,canine
88
What are the posterior teeth
Pre molars & molars
89
What are the 5 surfaces for an anterior tooth?
Labial, lingual, medial, distal, incisal
90
What are the 5 surfaces for a posterior tooth?
Buccal, lingual, mesial,distal, occlusal
91
Facial surfaces refer to which surfaces?
Labial & buccal
92
Which surfaces referto posterior surfaces?
Mescal & distal
93
How many directions can you divide the teeth in?
3
94
What are the 3 different tooth divisions?
Incisocervical,mesiodistal, labiolingual/buccolingual
95
How many one angles do anterior teeth have?
6
96
What are the line angles in anterior teeth
Mesiolabia, mesiolingual,distolabia, distolingual, labioincisal, linguincisal
97
How many one angles do posterior teeth have? Why?
8, because they are wider
98
What are the one angles for a posterior tooth?
Buccocclusal, linguocclusal, mesidlingual, mesiobuccal, mesiocclusal, distolingual, distobuccal, distocclusal
99
How many point angles do teeth have?
4
100
What are the point angles on an anterior tooth?
Mesiolabioincisal,mesiolinguoincisal, distolabio incisal, distolinguoincisal
101
What are the point angles on a posterior tooth?
Mesiobuccocclusal,mesiolinginocclusal, distobuccocclusal, distolinguocclusal
102
What are line angles?
lines formed by the junction of two surfaces derived its name from the combination of the surfaces that form it
103
What are point angles?
points formed by the junction of three surfaces derived its name from the combination of the surfaces that form it

Dental Anatomy & Occlusion 101 (1 decks)

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