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Periodontology > Exam 1 Study Guide > Flashcards

Exam 1 Study Guide Flashcards

(60 cards)

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1
Q

Tissues of the periodontium include

A
  1. ) Gingiva
  2. ) Cementum
  3. ) PDL
  4. ) Alveolar Bone.
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2
Q

Periodontium

A

the functional system of tissues that surrounds the teeth and attaches them to the bone

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3
Q

Gingiva

A

Provides a tissue seal around the cervical portion of the teeth and holds tissue against tooth

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4
Q

Gingiva is comprised of

A

A thin outer layer of epithelium and an underlying core of connective tissue

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5
Q

Gingivitis

A

A type of Periodontal disease characterized by changes in color, contour and consistency of the gingival tissue.

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6
Q

Clinical picture of gingivitis

A

Red (Erythematous), swollen with bleeding likely.

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7
Q

Gingival pocket

A

PDL and Alveolar bone are still intact. Supragingival fibers are destroyed.

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8
Q

Gingivits is observed clinically from

A

4-14 days

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9
Q

Tissue damage is irreversible in

A

Periodontitis

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10
Q

Tissue damage is reversible in

A

Gingivitis

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11
Q

A bacterial infection that is confined to the gingiva

A

Gingivitis

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12
Q

A bacterial infection that includes all parts of the periodontium

A

Periodontitis

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13
Q

Periodontal disease

A

A bacterial infection of the periodontium. ((Can include all parts of just the gingiva))
– Not to be confused with periodontitis

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14
Q

2 types of periodontal disease

A
  1. )Gingivitis

2. )Periodontitis

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15
Q

Extracellular Matrix

A

A gel-like substance containing interwoven protein fibers that surrounds most cells.
–Is mesh like.

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16
Q

5 Functions of the PDL

A
  1. ) Supportive
  2. ) Sensory
  3. )Nutritive
  4. )Formative
  5. )Resorptive
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17
Q

Tissue that has plentiful cells that are connected to one another by desmosomes

A

The Junctional Epithelium

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18
Q

Supportive Function of PDL

A

Provides cushion for Occlusal Forces and attaches tooth to the socket

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19
Q

Sensory Function of PDL

A

transmits tactile pressure and pain sensations

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20
Q

Nutritive Function of PDL

A

Has blood vessels that provide nutrients to cementum and bone

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21
Q

Formative Function of PDL

A

Has cementoblasts producing Cementum throughout life of tooth

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22
Q

Resorptive Function of PDL

A

has osteoclasts that can resorb bone and cementum

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23
Q

Without the PDL the tooth

A

would fall out of the socket and be lost

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24
Q

Cementum can be damaged by

A

Scaling

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25
Another name for the tooth socket
Alveolar Bone Proper
26
Sharpey Fibers are
the ends of PDL fibers that are embedded in the cementum and alveolar bone
27
The nerve supply to the periodontium comes from
Trigeminal Nerve (CNV) - 2nd branch-Maxillary - 3rd branch-Mandibular
28
Microscopically, a healthy periodontium will have whattype of appearance?
Smooth
29
Connects 2 cells together
Desmisome
30
Connects a cell to the basil lamina
Hemidesmisome
31
Fibers that circle the tooth in a ringlike matter are?
Circular fibers
32
How are sharpeys fibers embedded into the tissue
As Cementum forms it hardens around one end of the sharpey fibers and As alveolar bone forms it surrounds on the opposite side.
33
A tissue that has no blood vessels or nerves and does not regenerate once it is destroyed
Cementum
34
Pathogenesis
Development of a disease
35
The most common type of bone loss is
Horiztonal
36
The extracellular Matrix helps
hold cells together and provides a framework so that cells can migrate and interact with one another
37
Horizontal bone loss
Results in fairly even, overall reduction in the height of the bone
38
Verticle bone loss
Results in an uneven reduction in bone height, more rapid progression of bone loss next to the root surface *Leaves a trenchlike area of missing bone alongside the root
39
Vertical bone loss results in
Infrabony pockets
40
Pseudopockets
Gingival pockets involving no destruction of the PDL fibers or alveolar bone
41
Aatachment loss
the destruction of the fibers and alveolar bone that support the teeth
42
Disease site
An area of tissue destruction (can involve 1 or all surfaces of the tooth)
43
Active disease site
disease site that shows continued apical migration of the Junctional Epithelium over time. -EX: A pocket read 5MM 3 months ago but today it read 6MM
44
Inactive disease site
stable disease site that attachment level of junctional epithelium remains the same over a period of time
45
Aggressive Periodontitis
Formerly known as early onset periodontitis
46
3 types of Periodontitis
Agressive, Chronic and less common types.
47
most lymph of the periodontium drains t?
the head and neck
48
Lymphnodes of the head and neck include
Submental nodes, Submandibular nodes, Deep cervical nodes and Jugulodigastric nodes.
49
Epithelial tissue
Makes up outer surface of the body and lines cavities of body. *Characterized by plentiful cells and sparse Extrcellular matrix
50
Connective Tissue
Fills spaces between tissues and organs . | *Characterized by Few cells and abundance of Extracellular Matrix
51
How thick is the Junctional epithelium
15-30 Cells thick and Coronal Zone | 4-5 Cells thick at the Apical zone
52
Junctional epithelium forms
the base of the sulcus and joins the gingiva to the tooth surface.
53
A localized collection of pus within the tissues of the periodontium
Periodontal abscess
54
Clinical signs of periodontal abscess
Circumscribed, localized swelling. Possible increase in tooth mobility. Fistula possible. *tooth usually has vital pulp*
55
Periodontitis associated with endodontic Lesions
A tooth that has an abscess that is causing death to the tissues around the tooth (the periodontium)
56
Cancellous Bone
Spongy, lattice like bone filler between the cortical bone and the alveolar bone proper
57
what is the function of cancellous bone
Oriented around the tooth to form support for the alveolar bone proper.
58
Cortical bone
hard, outer layer of bone on the F and L surfaces of the jaw.
59
Cell junctions
cellular structures that mechanically attach cell to cell or cell to basil lamina
60
2 types of cell junctions
1. ) Desmisomes | 2. ) Hemidesmisomes

Periodontology (2 decks)

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