DH101 Dental Hygiene I Quiz #4 Module #6

The clinical crown is the part of the tooth below the attached periodontal tissues. B) The clinical root is the part of the tooth below the base of the gingival sulcus or periodontal pocket.

False, True

In ______ of cases, cementum overlaps the enamel at the CEJ.

60%

In ____ of cases, there is a gap between enamel and cementum, exposing dentin.

10%

What are the two parts of the periodontium?

Gingiva, and the attachment apparatus

That portion of the tooth that is visible in the oral cavity

Clinical crown

The part of the tooth below the base of the gingival sulcus or periodontal pocket. It is the part of the root to which periodontal fibers are attached.

clinical root

It is made up of enamel

Anatomical crown

portion of the tooth covered with cementum

Anatomical root

The function of cementum is to:

seal the tubules of the root dentin and supports the tooth along with the alveolar bone by provide attachment for the periodontal fiber groups

The gingival sulcus is the:

crevice between the free gingiva and the tooth (1-3mm in health)

What is the function of the junctional epithelium?

Provides a seal at the base of the sulcus to attach gingiva to the tooth.

What is a Class I embrasure?

The tip of the interdental papilla is apical to the contact point of adjacent teeth, but the interproximal CEJ is not visible. Papilla fills the entire interdental space.

Class II embrasure

The tip of the interdental papilla is at or apical to the interproximal CEJ, but coronal to the height of the facial CEJ. Papilla is partially missing

Class III embrasure

The interdental papilla is at or apical to the level of the facial CEJ. Papilla completely missing

Embrasure

Triangular space in a gingival direction between the proximal surfaces of two adjoining teeth in contact.

Which of the following should not be designated as clinically normal or clinically healthy?

Smooth, soft, and maximal sulcus depth with bleeding when probed

A) Factors that influence color are vascular supply, thickness of epithelium, and degree of keratinization. B) Chronic inflammation appears as a dark red, bluish red, magenta, or deep blue.

Both statements are true.

Signs of health in the gingiva include all of the following, except:

bleeding on probing

A) Floss cleft is created by using the floss correctly. B) Stillman's cleft is a localized recession that may be in a V-shape that extends several millimeters toward the mucogingival junction.

False, True

Hyperkeratosis:

leathery, hard, or nodular surface

A) Gingivitis occurs frequently in children, but is usually reversible without having permanent damage. B) Periodontal disease cannot occur in children.

True, False

In the relationship of enamel and cementum at the cervical area there are ______ instances where they do not meet and there can be an area of exposed dentin.

10% to 40%

Which of the following statements best describes alveolar mucosa?

Movable tissue, smooth, shiny surface with non-keratinized, thin epithelium

Which systemic disease(s) can influence the occurrence and severity of periodontitis?

Diabetes mellitus,

Obesity, and

Osteoporosis

Why would a dental hygienist dry supragingival calculus with an air syringe?

To facilitate exploring and scaling

A pocket is:

diseased gingival sulcus

The technique used with the periodontal probe is:

walking stroke

Suppuration is the formation of:

pus; indication of infection

The center of the col area is not usually __________, and thus is more susceptible to infection.

keratinized

Sulcus

narrow groove

All of the following are factors that affect probe determinations except:

severity and extent of periodontal disease

the periodontal probe (calibration)

Placement problems ( anatomic variations)

patient age

patient age

A) A probe is a slender instrument with a rough, pointed tip designed for examination of the depth and topography of a gingival sulcus or periodontal pocket.

B) A probe has three parts: the handle, the angled shank, and the working end.

Statement A is false and statement B is true

Define the col and the significance of disease susceptibility

A col is the depression under the contact area between a lingual or palatal and facial papilla that conforms to the proximal contact areas.

The center of the col area is not usually keratinized and thus more susceptible to infection.

A pathologically deepened sulcus due to periodontal disease is

Periodontal Pocket (4mm or more)