Deck 2: Periodontium: Anatomic Characteristics and Host Response

Question 1

The slight depression in the gingiva located between the buccal and lingual interdental papillae is called the:

A) Col
B) Gingival space
C) Gingival groove
D) Embrasure space

Answer 1

Col

Question 2

The process by which inflammatory cells are attracted to the body by stimuli,including trauma or microbial influences,is called:

A) Antibody
B) Antigen
C) Chemotaxis
D) Complement
E) Hypersensitivity reaction

Answer 2

Chemotaxis

Question 3

Hypersensitivity reactions:

A) Are not life threatening.
B) Cause no tissue damage.
C) Are only localized in nature.
D) Can be delayed or immediate.

Answer 3

Can be delayed or immediate.

Question 4

Cementum contains all of the following elements except one.Which element is the exception?

A) Cementocytes
B) Cementoblasts
C) Nerve endings
D) Hydroxyapatite
E) Sharpey fibers

Question 5

Sharpey fibers course through the periodontal ligament.They provide the brushlike attachment of the periodontal ligament fibers to the cementum and bone.

A) Both statements are TRUE.
B) Both statements are FALSE.
C) The first statement is TRUE, and the second statement is FALSE.
D) The first statement is FALSE, and the second statement is TRUE.

Question 6

What nerve supplies the periodontium?

A) Facial
B) Trigeminal
C) Abducens
D) Trochlear
E) Glossopharyngeal

Question 7

The name of the structure that surrounds the tooth and creates a cuff or collar of epithelium extending approximately 1.5 mm is:

A) Stippled gingiva
B) Free gingival groove
C) Free attached gingiva
D) Free marginal gingiva

Question 8

The "frecklelike" splotches on the gingiva are the result of:

A) Melanin in the tissue
B) Swelling in the tissue
C) Unusual tissue growth
D) Gingival fluid seeping into the tissue

Question 9

The alveolus (plural form is alveoli)is the:

A) Lamina dura
B) Tooth socket
C) Lamina propria
D) Cribriform plate
E) Alveolar process

Question 10

The loss of stippling is the result of:

A) Melanin in the tissue.
B) Swelling in the tissue.
C) Unusual tissue growth.
D) Gingival fluid seeping into the tissue.

Question 11

Tuberculosis or glomerulonephritis are hypersensitivities known as immune complexes.Immune complexes are caused by:

A) Histamine
B) T lymphocytes
C) High levels of circulating antigen
D) An antigen and complement reaction, causing destruction

Question 12

Use the description to answer the following exercises.
The dental hygienist examines the patient and describes the gingiva as coral pink with redness in the marginal gingiva, demonstrating a loss of stippling.When the tissue is gently depressed using the back of the periodontal probe, it is slightly depressible.The hygienist also notes some "frecklelike" splotches on the gingiva.
The redness in the gingiva is the result of:

A) Melanin in the tissue
B) Unusual tissue growth
C) Inflammatory response
D) Gingival fluid seeping into the tissue

Question 13

The alveolar process is defined as the bone that:

A) Makes up the lamina dura.
B) Makes up the cribriform plate.
C) Forms the dense compact bone of the tooth sockets.
D) Extends from the mandible and maxilla to surround the teeth.
E) Permits the passage of blood vessels and nerves to the apex of the tooth.

Question 14

The functions of the dentogingival unit (junctional epithelium,attached fibers,and connective tissue)are considered to be all of the following except one function.Which is the exception?

A) Protecting the periodontal ligament
B) Protecting the junctional epithelium
C) Supporting the junctional epithelium
D) Maintaining the free marginal gingiva
E) Maintaining the tone of the attached gingiva

Question 15

Hydroxyapatite in cementum is made up of ________% inorganic material.

A) 50
B) 65
C) 70
D) 97

Question 16

The principal fiber bundles in the connective tissue that run from the cementum to the alveolar crest and protect the periodontal ligament are called the ___________________ group.

A) Circular fiber
B) Transseptal fiber
C) Dentoperiosteal
D) Alveologingival

Question 17

The attached gingiva is demarcated from alveolar mucosa by the:

A) Gingival sulcus
B) Marginal groove
C) Unattached gingiva
D) Mucogingival junction

Question 18

Cell-mediated,type IV hypersensitivity reactions are caused by:

A) Histamine
B) T lymphocytes
C) High levels of circulating antigen
D) Antibody-antigen destruction

Question 19

The histologic sulcus depth in healthy gingiva is approximately:

A) 1 to 3 mm
B) 2 to 5 mm
C) 3 to 4 mm
D) 3 to 5 mm

Question 20

Effector molecules perform all of the following functions except one.Which function is the exception?

A) Decrease the immune response.
B) Cause cell-to-cell communication.
C) Cause the production of antibodies.
D) Stimulate systems to eliminate foreign substances.

Question 21

The mucogingival junction is the demarcation line between the alveolar mucosa and the attached gingiva.

Question 22

The __________________ is the anatomical name of the slight depression in the gingiva between the buccal and lingual interdental papillae.

Question 23

The demarcation line between the alveolar mucosa and attached gingiva is called the __________________.

Question 24

The col is lined with nonkeratinized epithelium.

Question 25

Interdental gingiva and papillae refer to the same anatomical structures.

Question 26

A __________________ is an opening in the bone covering the facial surface of a root,or a boneless window between two adjacent roots that are almost touching.

Question 27

The anatomical structure surrounding the tooth,creating a collar of epithelium,is called the __________________.

Question 28

A ________ is a resorbed area of bone over the facial surface of a tooth root.

Question 29

The function of Langerhans cells is ____________________________________.

Question 30

List the functions of the cementum:
________________________
________________________
________________________

Question 31

List three of the five functions of the periodontal ligament.
________________________
________________________
________________________

Question 32

The most significant factor in the longevity of the dentition is __________________.

Question 33

The __________________ are the connection between the free and attached gingiva and the underlying connective tissue,occurring in ridges.

Question 34

__________________ join the basal lamina and connective tissue.

Question 35

The free gingival groove is the anatomical structure surrounding the tooth,creating a collar of epithelium.

Question 36

The embrasure space is the slight depression in the gingiva appearing between the buccal and lingual interdental papillae.