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Patient Care 3 > Anatomy of the Periodontium > Flashcards

Anatomy of the Periodontium Flashcards

1
Q

4 Main
Components

A

gingiva
PDL
cementum
alveolar bone

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2
Q

GINGIVA

A

The oral masticatory mucosa that
surrounds the cervical portion of teeth
and covers the alveolar process of the
maxilla and mandible

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3
Q

GINGIVA
composed of (4)

A

Marginal gingiva (unattached or free gingiva)
Attached gingiva
Alveolar mucosa
Mucogingival junction (MCJ)

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4
Q

MARGINAL GINGIVA(UNATTACHED OR FREE GINGIVA)

A

→Free or unattached, cufflike tissue
surrounding the teeth on facial, lingual, and
interproximal surfaces

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5
Q

Gingival Margin (2)

A

most coronal portion of the gingiva
scalloped outlne of teeth

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6
Q

Gingival Sulcus

A

spaced formed by tooth and sucular epithelium (laterally) and coronal end of the JE (apically)

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7
Q

sulcular measurements of

A

1-3 mm considered WNL of gingival health

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8
Q

Free Gingival
Groove. (3)

A

-divides free gingiva from attached gingiva
-shallow depression
-found in only 50% of patients

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9
Q

Interdental gingiva (papilla) (3)

A

*part of free gingiva
• Occupies the interdental space (fills
embrasure space apical to tooth contact)
• Attached to the tooth by the JE and
connective tissue fibers

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10
Q

The Gingival Col

A

• Valley-like depression of
the interproximal contact
areas

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11
Q

The Gingival Col
• Connects

A

lingual and buccal
interdental papilla

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12
Q

The Gingival Col
• Absent when

A

teeth are not
in contact

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13
Q

The Gingival Col
• Nonkeratinized epithelium
susceptible to

A

inflammation
and disease progression

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14
Q

Junctional Epithelium

A

• Nonkeratinized epithelium
surrounding and attaching to the
tooth on one side, and the gingival
connective tissue on the other side

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15
Q

Junctional Epithelium
Base of the

A

sulcus/pocket

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16
Q

JE more permeable to

A

cells and fluid

17
Q

JE Serves as route of passage of fluid
and cells from the connective tissue
into the sulcus for

A

bacteria/bacterial
products from sulcus to connective
tissue

18
Q

JE is Easily penetrated by the

A

periodontal
probe, especially when gingiva is
inflamed

19
Q

JE
Length:

A

0.25-1.35mm (remember
approx. 1mm)

20
Q

GINIGVAL FIBERS
provides support for

A

marginal gingiva, including the
interdental papilla

21
Q

Circumferential or circular fibers–

A

encircle each
tooth in a cufflike fashion within the free gingiva

22
Q

Dentogingival fibers–

A

embedded within the
cementum; fan outward into the attached
gingiva to the tooth

23
Q

Dentoperiosteal fibers–

A

embedded in the same
portion of the cementum as the dentogingival
fibers

24
Q

Alveogingival fibers–

A

inserted in the crest of the
alveolar process and splay out through lamina
propria into the free gingiva

25
Q

Transseptal fibers–

A

embedded in the
cementum; run a horizontal path from adjacent
teeth
sometimes classified as PDL

26
Q

Attached Gingiva

A

• Attached to the alveolar bone and
cementum by connective tissue fibers
and epithelial attachment

27
Q

Attached Gingiva
• Boundaries are apically demarcated by
the
coronally demarcated by the

A

mucogingival junction (MGJ);
base of the gingival sulcus

28
Q

Attached Gingiva
• Width varies from

A

1-9mm; widest in facial
aspect of maxillary central incisors and
narrowest in the mandibular premolar
facial areas

29
Q

Attached Gingiva
NOT to be measured on the

A

palate

30
Q

Attached Gingiva
• Any changes in the width of attached
gingiva results from changes at the

A

coronal end (i.e., recession)

31
Q

ALVEOLAR MUCOSA
(2)

A

• Movable tissue, loosely attached to underlying alveolar bone
• Thin, nonkeratinized epithelium

32
Q

ALVEOLAR MUCOSA
Separate from

A

attached gingiva at the MGJ

33
Q

ALVEOLAR MUCOSA
Darker shade of red than gingiva due to

A

rich blood supply

34
Q

Mucogingival Junction (MGJ)

A

• Visible line where the pink keratinized gingiva meets
the more vascular alveolar mucosa (see arrows)

35
Q

Mucogingival Junction (MGJ)
• Found on the (2)

A

maxillary facial and the mandibular
facial and lingual areas

Patient Care 3 (25 decks)

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