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Periodontology > Exam 1 > Flashcards

Exam 1 Flashcards

(94 cards)

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1
Q

Primitive mouth in developing embryo

A

Stomodeum

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2
Q

One of the layers of tissue in the developing embryo which lines the stomodeum

A

Ectoderm

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3
Q

Lining of the oral cavity derived from ectoderm which gives rise to the teeth and associated tissue

A

Oral epithelium

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4
Q

Specialized group of cells that influence the ectomesenchyme to form dental tissues

A

Neural crest cells

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5
Q

Embryonic connective tissue

A

Mesenchyme

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6
Q

Mesenchyme from ectoderm influenced by neural crest cells

A

Ectomesenchyme

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7
Q

Extracellular material that separates the oral epithelium and ectomesenchyme

A

Basement membrane

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8
Q

Growth from oral epithelium that gives rise to the tooth buds

A

Dental lamina

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9
Q

Mucous membrane lining the oral cavity

A

Oral mucosa

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10
Q

Change in embryonic cells to become quite distinct structurally and functionally

A

Differentiation

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11
Q

Process of development of specific tissue morphology

A

Morphogenesis

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12
Q

Cap or bell shape portion of the tooth germ that produces enamel

A

Enamel organ

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13
Q

Inner mass of ectomesenchyme of tooth germ that produces dentin and pulp

A

Dental papilla

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14
Q

Tooth germ part consisting of ectomesenchyme surrounding outside of enamel organ

A

Dental sac

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15
Q

Beginning of tooth germ which consists of enamel organ, dental papilla, and dental sac

A

Tooth germ

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16
Q

Substance in connective tissue that serves as a framework for later calcification

A

Matrix

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17
Q

Cells that differentiate from pre-ameloblasts to form enamel during amelogenesis

A

Ameloblasts

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18
Q

Cells that produce dentin and differentiate from outer cells of the dental papilla

A

Odontoblasts

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19
Q

Hardening of enamel matrix by ameloblasts

A

Amelogenesis

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20
Q

functional system of tissues that surrounds teeth and attaches them to jawbone

A

Periodontium

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21
Q

o Supporting tissue of teeth
o Attachment apparatus

A

Periodontium

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22
Q

top of bone

A

crest of alveolar bone

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23
Q

covers the crown

A

enamel

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24
Q

underneath the cementum

A

dentin

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25
in the direction of the apex of the root
apical
26
to chew
mastication
27
maintains tooth in socket
periodontal ligament
28
supports the roots of teeth
alveolar bone
29
gums
gingiva
30
gingiva between teeth
interdental gingiva
31
surrounds tooth, not firmly attached
free gingiva
32
firmly attached to underlying bone
attached gingiva
33
mucosa not firmly attached, part of the vestibule
alveolar mucosa
34
loose skin when lip is lifted (snuff)
vestibule
35
where cementum and enamel meet
CEJ
36
attached apparatus
junctional epithelium
37
what are the four anatomical areas?
interdental gingiva free gingiva attached gingiva gingival sulcus
38
What are the boundaries of the attached gingiva?
Upper: free gingical groove Bottom: mucogingival junction
39
What are the boundaries of the free gingiva?
Upper: gingival margin Bottom: free gingival margin
40
Space between gingiva and tooth
Sulcus
41
Where is attached gingiva the widest?
Incisor and molar region
42
Where is attached gingiva the narrowest?
premolar region
43
Bumpy gingiva
stippling
44
depression apical to contact area of adjacent teeth that connects facial and lingual papilla
interdental col
45
V-shaped shallow space between free gingiva and tooth surface - 1 to 3 mm deep
gingival sulcus
46
seeps from underlying connective tissue
gingival crevicular fluid
47
network of soft connective tissue fibers that attach root of tooth to bony walls of tooth socket
periodontal ligament
48
What is the periodontal ligament mainly composed of?
dense fibrous connective tissue
49
grinding of teeth
bruxism
50
layer of hard, mineralized tissue that covers surface of root
cementum
51
forms before teeth are in occlusion, devoid cells, covers two-thirds of root
Acellular cementum
52
forms after teeth have reached occlusion, composed of cementocytes, covers apical one-third of root
Cellular cementum
53
wear away of tooth surface (chewing)
attrition
54
Spongy bone
cancellous bone
55
layer of compact bone that forms hard, outer wall of mandible and maxilla on facial and lingual aspects
cortical bone
56
coronal-most portion of alveolar bone
alveolar crest
57
thinner in incisor, canine, and premolar regions, thicker in molar region
buccal cortical bone
58
study of microscopic features of tissue
histology
59
group of interconnected cells that perform similar function
tissue
60
What are the four basic types of tissue?
epithelial connective nerve muscle
61
mesh-like network surrounding cells
extracellular matrix
62
What physically supports cells within tissue and provides biochemical framework for cell migration and interaction?
extracellular matrix
63
What consists of mainly basal lamina?
epithelial tissue
64
makes up outer surface of body
epithelial tissue
65
What lines body cavities?
epithelial tissue
66
thin mat of extracellular matrix secreted by epithelial cells
basal lamina
67
What is not visible under light microscope and aids attachment of epithelial cells to adjacent structures?
basal lamina
68
process by which surface epithelial cells become stronger and waterproof
keratinization
69
What have no nuclei and form tough, resistant layer on skin?
keratinized epithelial cells
70
What have nuclei and act as cushion?
nonkeratinized epithelial cells
71
What are epithelial cells?
avascular
72
fills space between tissues and organs in body
connective tissue
73
What is enamel considered?
epithelial tissue
74
site where epithelial and connective tissue meet
epithelial-connective tissue interface
75
thin layer with light microscope beneath epithelium
basement membrane
76
What is a combination of basal lamina and reticular lamina?
basement membrane
77
epithelial extensions reaching down into connective tissue
epithelial ridges (rete pegs)
78
finger-like extensions projecting up into epithelium
connective tissue papillae
79
- no epithelial ridges or connective tissue papillae - historically seen in healthy sulcular epithelium and healthy junctional epithelium
smooth non-interdigitizing interface
80
Cellular structures that mechanically “lock” cell and its cytoskeleton to its neighbor or basal lamina
Epithelial cell junctions
81
create cell-to-cell connections
Desmosomes
82
create cell-to-basal lamina connection
Hemidesmomes
83
specialized stratified squamous epithelium that functions in wet oral cavity
Gingival epithelium
84
What are the three anatomical areas?
* Oral epithelium * Sulcular epithelium * Junctional epithelium
85
covers outer surface of free gingiva and attached gingiva from crest of gingival margin to mucogingival junction
Oral epithelium
86
What are the cell layers of the oral epithelium?
- Basal cell layer - Prickle cell layer - Granular cell layer - keratinized cell layer
87
Basal cell layer =
stratum basale
88
prickle cell layer =
stratum spinosum
89
granular cell layer =
stratum granulosum
90
keratinized cell layer =
stratum corneum
91
epithelium lining of gingival sulcus continuous with oral epithelium, extending from crest of gingival margin to coronal edge of junctional epithelium
Sulcular epithelium
92
What are the three thin, nonkeratinized cell layers?
- basal cell layer - prickle cell layer - superficial cell layer
93
forms base of sulcus and joins gingiva tooth
Junctional epithelium
94
What are the functions of the junctional epithelium?
- attachment - barrier - host defense

Periodontology (5 decks)

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