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Dental Morphology > Test 1 > Flashcards

Test 1 Flashcards

1
Q

Formed in response to irritation

A

Reparative Dentin

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2
Q

Uniform layer of dentin around pulp

A

Physiological Secondary Dentin

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3
Q

Cementum that covers cervical portion of root

A

Cellular Cementum

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4
Q

Cementum that covers the apical portion of root

A

Acellular Cementum

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5
Q

different types and classes of teeth preform different functions

A

Herterodont

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6
Q

A heterodontic dentition that has only one set of teeth

A

monophyodont

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7
Q

A heterodontic dentition that has two sets of teeth

A

diphyodont

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8
Q

A hertodontic dentition that has many sets of teeth-continually replacing

A

polyphyodont

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9
Q

First stage of dentition, deciduous

A

Primary Set

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10
Q

Second stage of dentition, secondary

A

Permanent Set

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11
Q

What makes up primary dentition according to the teeth

A

20 teeth, 2 arches-10 on each. 4 quadrents- 5 in each-molars, canines and incisors

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12
Q

What makes up permanent dentition according to the teeth

A

32 teeth, 2 arches-16 on each 4 quadrants 8 in each-molars, premolars, canines and incisors

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13
Q

Primary dental formula

A

2-1-2

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14
Q

Permanent dental formula

A

2-1-2-3

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15
Q

Permanent teeth that are succedaneous

A

canines, premolars and incisors

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16
Q

which teeth are permanent but not succedaneous

A

molars

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17
Q

Characteristics that distinguish teeth in the primary dentition from those in the permanent dentition.

A

Set traits

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18
Q

Characteristics that distinguish maxillary from mandibular teeth.

A

Arch traits

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19
Q

Characteristics that differentiate the four categories or classes of teeth (incisors, canines, premolars, molars).

A

Class Traits

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20
Q

Characteristics that differentiate teeth within a particular class (central & lateral incisor or 1st & 2nd premolar or 1st, 2nd, & 3rd molar).

A

Type Traits

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21
Q

Characteristics that distinguish the teeth of the left quadrant from their counterparts in the right quadrant within an arch.

A

Side traits

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22
Q

What is the Standard order for naming

A

Set, Arch, Quadrant, Type and Class

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23
Q

The inner surface of the cementum lining the root

A

Cemenodentineal junction

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24
Q

Separates anatomical crown from anatomical root

A

Cementoenamel junction

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25
96% hydroxyapatite, hardest substance in body
Enamel
26
70% hydroxyapatite, underlies enamel
Dentin
27
65% hydroxyapatite, very thin layer of tissue surrounding tooth
Cementum
28
Soft non calcified tissue in tooth cavity
Pulp
29
Pertaining to the crown
Coronal
30
Pertaining to the root
Apical
31
How many line angles are there
8
32
How many point angles are there
4
33
Small bumps on anterior teeth
mammelons
34
located on the mesial and distal border of the | occlusal surfaces
Marginal Ridge
35
located on each major cusp of posterior teeth and extends downward from the cusp tip toward the middle of the occlusal surface faciolingually.
Triangular ridge
36
crosses the occlusal surface in a buccolingual direction
Transverse ridge
37
crosses the occlusal surface diagonally
oblique ride
38
an irregular, usually rounded depression or concavity.
fossa
39
small, depressed area where developmental grooves join or terminate. Is usually found in the deepest portion of a fossa.
Pits
40
two bones, right & left, that unite to form the upper jaw and support the maxillary teeth.
Maxilla
41
What are the bones of the Maxilla
Palatine process, Zygomatic, Alveolar and Frontal
42
the strong, horse-shaped bone that forms the lower jaw.
Mandible
43
What are the bones of the Mandible
Body of Mandible, Mandibular Ramus and Angle of the Mandible
44
that part of the periodontium that consists of mucous tissue which surrounds a tooth at the cervix, and which extends to cover the maxillary and mandibular processes.
Gingiva
45
the bony lining of the socket (alveolus) that holds the root(s) of the tooth and is a portion of the maxillary and mandibular processes.
Alveolar bone
46
collagenous fiber bundles that surround the root(s) of a tooth and connect the cementum with the alveolar bone and a portion of the gingiva.
Periodontal ligament
47
proliferation of cells called the dental papilla in the appearance of a hollowed cap and becomes the enamel organ.
Cap Stage of tooth development
48
known for histodifferentiation & histomorphodifferentiation. The enamel organ is bell-shaped and the majority of cells are called stellate reticulum. Cervical loop forms.
Bell Stage of tooth development
49
Derived from ectoderm
Enamel organ, enamel
50
Enamel is derived from what cell
ameloblasts
51
Dentin is derived from what cell
odontoblasts
52
Pulp and Dentin derived from over all region
Dental Papilla
53
Cementum is derived from what cell
Cementoblasts
54
Peridontal ligament is derived from what cell
Fibroblasts
55
Alveolar bone is derived from what cell
Osteoblasts
56
Cementoblasts, Fibroblasts, and Osteoblasts come from what larger region of cells
Dental Follicle-Ectomesenchyme
57
Which Cells are derived from ectomesenchyme
Cementoblasts, Osteoblasts and Fibroblasts aka Cementum, Alveolar bone and peridontal ligament
58
What cells are derived from mesenchyme
Odontoblasts and Pulp (dentin)
59
represent that part of the oral epithelium that has potencies for tooth formation. In 5th to 6th week in utero.
Initiation
60
causes regular changes in the size and proportions of the growing tooth germ. Tooth germ has the potential to progress to more advanced development. In 4th or 5th month of development.
Proliferation (bud-early cap stage)
61
undergo definite morphologic and functional changes & acquire their functional assignments
Histodifferentiation
62
the morphologic pattern or basic form and relative size of the tooth is established by differential growth.
Morphodifferentiation
63
occurs where teeth interact through mastication and speech. Surfaces wear away.
Attrition
64
single layer of columnar cells which become ameloblasts
Inner enamel Epithelium
65
single layer of cuboidal cells near the rich vascular plexus.
Outer enamel Epithelium
66
Where is enamel the thickest?
thickest on incisal & occlusal surfaces and tapers toward the cervical line.
67
Uniform layer of dentin around pulp
Physiological Secondary dentin
68
Dentin formed in response to irratation
reparative dentin
69
What are four major functions of human teeth
Mastication, Esethetics, Phonics and Sustenance
70
How many lobes do canines incisors and premolars have
4 lobes, 3 facial, 1 lingual
71
How many lobes do molars have?
4 lobes
72
Which teeth have 5 lobes?
Mandibular 1st molar and Mandibular 2d pre molar
73
Reptilian Stage of tooth development
Haplodont
74
Early mammalian stage of tooth development
Tricolodont
75
Triangular stage of tooth development
Triturbercular
76
Human stage of tooth development
Quadritubercular
77
anterioposterior curvature of mouth
Curve of Spee
78
Lateral curvature of mouth
Curve of Wilson
79
Three dimentional combination plane of oral cavity
Sphere of Monson
80
Triangular shaped areas between the teeth formed by the bone on one side and the proximal surfaces and their contact area on the other side
Interproximal space
81
are the spaces between the teeth that are occulsal (incisal) to the contact areas.
Embrasure space
82
Interproximal form includes
Gingiva and cervical areas
83
What are the two main physiological functions of Embrasure space
Protection and Stimulation
84
(spillways and self cleaning of teeth) Refers to what
Embrasure space, protection and stimulation
85
isthe highest point of a curve or greatest convexity or bulge on the facial and lingual surface,
Height of contour
86
What four thing make up protection and stimulation in the oral cavity?
Embrasure space, height of contour, marginal ridge height, central groove continuity
87
Longest root of a tooth is which tooth
Canine
88
Facial and lingual aspects of all teeth are what shape
trapezoidal
89
Mesial distal aspects of anterior teeth form what shape
Triangular
90
Mesial distal aspects of Maxillary posterior teeth form what shape
Trapezoidal
91
Mesial distal aspects of Mandibular posterior teeth form what shape
Rhomboidal
92
Circular muscle in the lips, helps with protrusion
Orbicularis Oris muscle
93
Principal cheek muscle, compresses cheeks
Buccinator muscle
94
Muscle of the chin
Mentalis
95
muscle running from mandible to hyoid bone -speaking and swallowing
Mylohoid muscle
96
extends form superior portion of hyoid to mandible
Suprahyoid muscle
97
extends form inferior portion of hyoid and extends to sternum and clavical
Infrahyoid muscle
98
Three muscles that open the mouth
Lateral pterygoid muscle, Suprahyoid muscle, Infrahyoid muscle
99
Three muscles that close the jaw
Medial pterygoid muscle, Masseter muscle, Temporalis muscle
100
What two muscles retract the jaw
Suprahyoid muscle and Termporalis
101
Muscle to protrude jaw
Lateral pterygoid muscle
102
What are the parts to the TMJ ( 4)
Articular fossa, Articular eminence, Articular disk and Mandibular Condyle
103
Using the universal notation system, a primary mandibular right central incisor would be identified as
P
104
Similarities and differences distinguishing tooth #7 from #8 would be included specifically in which trait category
Type
105
Which of the following choices is true regarding proximal tooth contact areas
Become more cervical anterior to posterior
106
In tooth #19 has a MDOFL carries, which of the following choices would be most appropriate in naming the 5 restorations
MODFL
107
when does a cervical embrasure space appear
only when the interproximal space is not occupied by the gingiva

Dental Morphology (5 decks)

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