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Lecture 1 Flashcards

1
Q

How is Dentition defined?

A

Natural teeth in the dental Arch

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2
Q

How many sets of teeth do humans have in their lifetime?

A

Two sets

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3
Q

How are Human teeth arranged?

A
  • Dental Arches
  • Median Line
  • Quadrant
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4
Q

What are the 2 Dental Arches?

A

Maxillary Arch

Mandibular Arch

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5
Q

The Maxillary Arch is fused by how many bones?

A

2 Bones

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6
Q

The Mandibular Arch is fused by how many bones?

A

1 Bone

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7
Q

The Mandibular bone is the only moveable bone that moves. T or F

A

True

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8
Q

What is meant by Median Line?

A

Midline-forming equal left and right sides

Mid-sagittal plane (think Left & Right)

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9
Q

What is meant by Quadrant?

A

Half…and Arch created by median line

(Quadrant means 4; divides the mouth in four quadrants); 4 Areas

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10
Q

What are the 4 Quadrants?

A

UR; UL; LL; LR

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11
Q

Homodonts have how many forms and functions?

A

one form and one function

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12
Q

Heterdont’s have how many forms and functions?

A

Several forms in the same arch and they are going to have several functions

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13
Q

Are humans Homodont’s or Heterdont’s?

A

Heterdont’s

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14
Q

The Heterodont Quadrants consists of which teeth?

A 
2-Incisors per quad
1-Canine per quad
2-Premolar per quad
3-Molars per quad including wisdom teeth 
(for secondary-Permanent teeth)
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15
Q

What is the function of the incisors?

A

to cut food

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16
Q

What is the function of the Canines?

A

to pierce food

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17
Q

What is the function of the Premolars and Molars?

A

to Grind food

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18
Q

Polyphyodontism is defined as…

A

many sets of teeth that continuous replacement of teeth

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19
Q

Diphyodontism is defined as..

A

two sets of teeth (deciduous and permanent)

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20
Q

Are Humans Polyphyodontism or Diphyodontism?

A

Diphyodontism

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21
Q

How many Primary/deciduous teeth are there?

A

20

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22
Q

How many Permanent/secondary teeth are there?

A

32

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23
Q

Around when do the primary/deciduous teeth erupt?

A

around 6mo’s. to 2 yrs

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24
Q

Around when do the permanent/secondary teeth erupt?

A

around the ages of 6-12yrs

EXCEPT for one tooth–the wisdom which erupts around 17-22yrs of age.

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25
What is meant by Mixed Dentition?
When components of Primary and Permanent are present.
26
What is the Quadrant Formula for the Primary Dentition?
2-1-2 (per quad) 2-incisors 1-canine 2-molars
27
What is the Quadrant Formula for the Permanent Dentition?
``` 2-1-2-3 (per quad) 2-incisors 1-canine 2-premolars 3-molars ```
28
What are the functions of the Primary Dentition?
Alignment Formation Speech Mastication
29
What are the function of the Permanent Dentition?
Esthetics Speech Mastication
30
What are the TWO types of teeth in the Secondary/permanent teeth?
Succedaneous and Nonsuccedaneous
31
Define Succedaneous
Permanent teeth replacing primary/deciduous teeth
32
Define NonSuccedaneous
Permanent teeth with NO predecessor
33
The permanent premolars replace what molars?
The Primary/deciduous Molars
34
Are the Permanent molars succedaneous or nonsuccedaneous?
NONsuccedaneous
35
What is the dentition made of?
Gingiva and Teeth
36
What is the gingiva?
Soft tissue surrounding the teeth (should be pink)
37
Teeth are.....
hard-tissue (white stuff)
38
What are the 4 traits of the Dentition?
Incisors Canines Premolars Molars
39
What are the tissues of the Teeth?
Enamel Dentin Cementum Pulp
40
What is the hardest structure in the body?
Enamel
41
How much is Enamel mineralized? (%)
97%
42
What makes the "Bulk" of the tooth structure?
Dentin
43
Can Dentin repair itself?
Yes, limited form
44
Can Enamel repair itself?
No
45
How much is Dentin Mineralized? (%)
70%
46
What are the 3 Factors that effect the Color of the teeth?
- the thickness of enamel - mineralization - color of the dentin
47
What covers the dentin on the root?
Cementum
48
How much is the Cementum mineralized? (%)
50%
49
What is in the middle of the tooth that is vascular and neurological components?
The Pulp
50
The Pulp consists of 3 parts. What are they?
Chamber Canal Horns
51
The Pulp Chamber is located where in the Pulp?
within the crown of the tooth
52
The Pulp Canal is located where in the Pulp?
within the roots of the tooth
53
The Pulp Horn is located where in the Pulp?
Chamber extensions toward crown of tooth
54
The portion of the tooth covered with enamel is called?
The Anatomical Crown
55
The portion of the tooth seen in the Oral Cavity is called?
The Clinical Crown
56
The portion of the tooth covered with Cementum is called?
The Anatomical Root
57
The portion of the tooth NOT seen in oral cavity is called?
The Clinical Root
58
When teeth are fused to the height of the Alveolar Ridge it is called?
Acrodonts
59
When teeth are fused to the inner surface of the alveolar bone it is called?
Pleurodont
60
When teeth are held in the jaw by ROOTS it is called?
Thecodont
61
Are Humans, Acrodonts, Pleurodonts or Thecodonts?
Humans are Thecodonts
62
Do Acrodont and Pleurodont have roots?
No
63
Do Thecodonts have roots?
Yes
64
Enamel covers what on the crown?
Dentin
65
What covers the dentin on the root surface?
Cementum
66
The 3 Tissues of the tooth that are all more mineralized than bone are what?
Enamel Dentin Cementum
67
Where the cementum and the enamel meet is termed as what?
Cementoenamel Junction (CEJ)
68
Where the dentin and enamel meet is termed as what?
Dentinoenamel Junction (DEJ)
69
Where the dentin and cementum meet is termed as what?
Dentinocemtnal Junction (DCJ)
70
Bone which surround and support the teeth is called?
Alveolar Process
71
The opening near the apex of the tooth is called?
Apical Foramen | where the nerve & blood supply enter the tooth
72
What is the percentage of patients that their cementum and enamel meet?
30% meet 60% overlap 10% GAP (they do not meet)
73
The branching of tooth with more than one root is called?
Furcation
74
The two types of Furcation are?
Bi (two roots) and Tri (three roots)
75
The unbranched portion of multi-rooted teeth is called?
The Root Trunk
76
The end of the root of the tooth is called?
Root Apex
77
The Fibrous Ligament that connects the cementum to alveolar bone is called?
Periodontal Ligament (PDL)
78
All the molars have how many roots?
2 or 3 roots
79
T/F there is one premolar root that is bifurcated
True
80
A fibrous connection b/w the tooth and the socket is called?
Gomphosis........Thecodonts
81
How do we classify the Human dentition?
We humans are.... Heterodont *many shapes, many functions Diphyodont *2 types of dentitions (primary and permanent) Thecodont *we have ROOTS
82
How many teeth make up each dentition?
Primary-20 | Permanent-32
83
How many of each tooth class is in a quadrant of primary and permanent teeth?
Primary 2-1-2 | Permanent 2-1-2-3
84
Permanent premolars replace which primary teeth?
the primary molars
85
Are Permanent molars succedaneous or nonsuccedaneous?
nonsuccedaneous

Dentition (8 decks)

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