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SEM 1 > Peridontium: The Tooth Supporting Structures > Flashcards

Peridontium: The Tooth Supporting Structures Flashcards

1
Q

Peri =

A

Around

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2
Q

Odontos =

A

Tooth

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3
Q

Tissues of the periodontium

A
  1. Cementum
  2. Alveolar bone
  3. Periodontal ligament
  4. Gingiva
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4
Q

_________ is located coronal to CEJ of each tooth.

A

Gingiva

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5
Q

Function: protects underlying tooth-supporting structures of periodontium from oral environment

A

Gingiva

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6
Q

________ is a shallow linear depression
separating free and attached gingiva

A

Free gingival groove

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7
Q

_________ is where the pink attached gingiva
meets the red alveolar mucosa

A

Mucogingival junction

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8
Q

4 anatomical areas of gingiva

A
  1. Free Gingiva
  2. Attached Gingiva
  3. Interdental Gingiva
  4. Gingival Sulcus
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9
Q

Unattached portion that surrounds a tooth in the region of the CEJ

A

Free Gingiva

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10
Q

The free gingiva is attached to the tooth by

A

The junctional epithelium

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11
Q

The part of the gingiva that is tightly bound to the underlying cementum

A

Attached gingiva

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12
Q

What is the color of healthy attached gingiva

A

Pale or light coral pink

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13
Q

Healthy gingiva may have a _______ appearance, like an orange peel.

A

Stipple

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14
Q

What is the purpose of the attached gingiva?

A

Allows tissue to withstand forces during chewing, speaking, and toothbrushing.

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15
Q

Portion of gingiva that fills the space
(embrasure) between 2 adjacent teeth.

A

Interdental gingiva

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16
Q

What is the purpose of interdental gingiva?

A

The interdental gingiva prevents food from
becoming packed between teeth during chewing.

17
Q

Interdental gingiva consists of what 2 interdental papillae:

A
  1. Lingual papillae
  2. Facial papillae
18
Q

_______is a valley-like depression apical to the
contact area of 2 adjacent teeth that connect facial and lingual papillae.

A

Gingival Col

19
Q

T/F: The col will be present if there is a large space between 2 teeth or there is a notable gingival recession

A

False.
The col will not be present if there is a large space between 2 teeth or there is a notable gingival recession

20
Q

The V-shaped shallow space between free gingiva and tooth surface.

A

Gingival Sulcus

21
Q

Measured by a periodontal probe, a healthy sulcus measures

A

1-3mm

22
Q

________seeps from underlying connective tissue into the sulcular space.

A

Gingival cervicular fluid

23
Q

What is PDL

A

Periodontal ligament

24
Q

Layer of connective tissue that covers the
root of the tooth and attaches it to the bone
of the tooth socket.

A

PDL - Periodontal ligament

25
Q

5 functions of the periodontal ligament

A
  1. Supportive: to maintain tooth in socket.
  2. Sensory: provides feelings like pressure and pain.
  3. Nutritive: by providing nutrients to cementum and bone.
  4. Formative: by providing cementoblasts and osteoblasts.
  5. Remodeling: of alveolar bone in response to pressure.
26
Q

Thin layer of hard, mineralized connective tissue that covers the surface of the root.

A

Root cementum

27
Q

Primary function is for periodontal ligament
attachment

A

Root cementum

28
Q

_________ are the terminal endings of
periodontal ligaments attached to cementum.

A

Sharpey’s fibers

29
Q

Excessive deposition of cementum on the tooth roots.

A

hypercementosis

30
Q

Mineralized connective tissue that forms bones of the upper and lower jaw to support roots of teeth
Forms bony sockets that provide support to roots of teeth.

A

Alveolar bone

31
Q

The alveolar bone is comprised of 3 layers of hard tissue covered by a layer of connective tissue:

A
  1. Alveolar bone proper
  2. Cortical Bone
  3. Cancellous bone
32
Q

________ is the bony socket that houses
the tooth.

A

Alveolus

33
Q

_________ (holes) allow blood vessels to
connect cancellous bone to periodontal
ligament

A

Foramina

34
Q
A

Alveolar bone proper

35
Q

T/F: Sharpey’s fibers are embedded in
alveolar bone proper.

A

True

36
Q

________ is a layer of compact bone that forms the outer wall on facial and lingual surfaces

A

Cortical bone

37
Q

(aka spongy bone)

A

Cancellous bone

38
Q

(aka spongy bone) that fills
the interior portion of the alveolar process and is found mostly in the interproximal areas

A

Cancellous bone

39
Q

Periosteum

A

is a layer of connective tissue that covers the outer surface of bone.

SEM 1 (11 decks)

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