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Clinical Dental Hygiene I > Quiz 7 > Flashcards

Quiz 7 Flashcards

0
Q

Part of the tooth below the gingival sulcus or periodontal pocket
- part of the root to which the periodontal ligaments are attached

A

Clinical root

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1
Q

Part of the tooth above the attached periodontal tissue; area of dental hygiene treatment

A

Clinical crown

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2
Q

Part of the tooth covered by enamel

A

Anatomic crown

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3
Q

Part of the tooth covered by cementum

A

Anatomic root

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4
Q

Covers the gingiva and hard palate (areas used during the mastication of food)

A

Masticatory mucosa

  • firmly attached to alveolar bone (except for free gingiva)
  • epithelial covering is generally keratinized (can withstand the abrasiveness of chewing)
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5
Q

Covers the inner surface of the lips and cheeks, maxillary and mandibular vestibules, alveolar ridges, floor of the mouth, soft palate

A

Lining mucosa

  • non keratinized epithelium- tissue is more fragile, requires moist secretions to stay healthy
  • loosely attached underlying connective tissue
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6
Q

Covers dorsum of tongue

* composed of many papillae, some of which contain taste buds

A

Specialized mucosa

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7
Q

The functional unit of tissues that surrounds and supports the tooth

A

The periodontium

* the periodontal ligament, cementum, and bone make up the attachment apparatus

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8
Q

Fibrous connective tissue that surrounds and attaches the roots of teeth in cementum and alveolar bone

A

Periodontal ligament

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9
Q

Around the cervical area within the gingival tissues

A

Gingival fiber groups

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10
Q

Surrounding the root

A

Principal fiber groups

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11
Q

Extend from the cementum in the cervical region into the free gingiva, give support to the gingiva **

A

Dentogingival (free gingival) fibers

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12
Q

Extend from the alveolar crest into the free and attached gingiva, provide support **

A

Alveologingival (attached gingival) fibers

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13
Q

Continuous around the neck of the tooth, help to maintain the tooth in position **

A

Circumferential (circular) fibers

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14
Q

Extend from the cervical cementum over the alveolar crest to blend with fibers I the periosteum of the bone

A

Dentoperiosteal (alveolar crest) fibers

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15
Q

Extend from the cervical area of one tooth across to an adjacent tooth (on the medial or distal only) provide resistance to separation of teeth **

A

Transseptal fibers

16
Q

From the root apex to adjacent surrounding bone to resist vertical forces

A

Apical fibers

17
Q

From the root above the apical fibers obliquely toward the occlusal to resist vertical and unexpected strong forces

A

Oblique fibers

18
Q

From the cementum in the middle of each root to adjacent alveolar bone to resist tipping of the tooth

A

Horizontal fibers

19
Q

From the alveolar crest to the cementum just below the cementoenamel junction to resist intrusive forces

A

Alveolar crest fibers

20
Q

From cementum between the roots of multi rooted teeth to the adjacent bone to resist vertical and lateral forces

A

Interradicular fibers

21
Q

Thin later of calcified connective tissue which covers the tooth from the CEJ to and around the apical foramen

A

Cementum

22
Q

Functions of cementum

A
  • seals the tubules of the root dentin

- provides attachment for the periodontal fiber groups

23
Q

Characteristics of cementum

A
  • thickness is 50-200 um about the apex; 30-60 um about the cervical area
  • cementum is insensitive because vascular and nerve connections are missing
  • relationship of enamel and cementum

**10% do not meet area of exposed dentin, in 30% they meet edge to edge, and 60% the cementum overlaps the enamel

24
Q

Supports the teeth/ provides attachment for periodontal ligament fibers

A

Alveolar bone

25
Q

Part of the Masticatory mucosa that surrounds the neck of the teeth and is attached to the teeth and alveolar bone, composed of free gingiva, attached gingiva and interdental gingiva or interdental papilla

A

Gingiva

26
Q

Gingival margin to the free gingival groove, coronal to attached gingiva

A

Free gingiva

27
Q

Depression that demarcates the end of the free gingiva, May or may not be present

A

Free gingival groove

28
Q

Most coronal portion of the free gingiva, edge of the gingiva nearest the incisal or occlusal surface, marks the opening of the gingival sulcus

A

Gingival margin

29
Q

Gingival sulcus

A
  • internal aspect of the free gingiva
  • creates shallow groove hat separates the free gingiva from the surface of the tooth
  • healthy sulci are shallow and maybe be only 0.5 mm**
  • average depth= 1.8 mm
30
Q

Forms the floor of the gingival sulcus

A

Junctional epithelium

  • wedge shaped &a continuous with the sulcular epithelium
  • completely encircles the tooth
  • has 2 basement membranes: one adjacent to the connective tissue and one adjacent to the tooth surface
31
Q

Position of the junctional epithelium

A
  • As tooth erupts, attachment is on enamel
  • During eruption- migrates toward the CEJ
  • full eruption- eruption is on the cementum where it becomes firmly attached
32
Q

Occupies the interproximal area between 2 adjacent tooth; also called EMBRASURE

A

Interdental gingiva (papilla)

33
Q

Depression between the lingual or palatal and the facial papillae

  • under the contact area; depends when gingiva enlargement occurs
A

Col

34
Q

Free gingiva to the MGJ

A

Attached gingiva

*firmly bound to the underlying cementum and alveolar bone

35
Q

Line that marks the connection between attached gingiva an alveolar mucosa

A

Mucogingival junction

    • no alveolar mucosa is present on the palate
  • palatal tissue is firmly attached to the bone of the roof of the mouth
36
Q

Moveable tissue loosely attached to the underlying bone
- smooth shiny surface with nonkeratinized, thin epithelium, extends from the MGJ into the mucolabial and mucobuccal fold

A

Alveolar mucosa

37
Q

Filled with crystals of various calcium phosphate (mineralized dental biofilm)

A

Calculus

Clinical Dental Hygiene I (5 decks)

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