Question 1

The width (thickness)of the periodontal ligament increases with age.

Accepted Answer

A) True 
 B)False  False

Question 2

The periodontal ligament connects with the gingival tissues.

Accepted Answer

A) True 
 B)False  True

Question 3

Interstitial spaces of the periodontal ligament contain

Accepted Answer

A)  cementum. 
B)  blood vessels and nerve trunks. 
C)  alveolar bone. 
D)  nothing.They are empty spaces left between structures. 
A)  cementum. 
B)  blood vessels and nerve trunks. 
C)  alveolar bone. 
D)  nothing.They are empty spaces left between structures. B

Question 4

Each of the following objects in the periodontal ligament are phagocytosed by macrophages EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Dead cells 
B)  Bacteria 
C)  Monocytes 
D)  Foreign bodies 
A)  Dead cells 
B)  Bacteria 
C)  Monocytes 
D)  Foreign bodies

Question 5

Cementoblasts repair resorbed cementum.

Accepted Answer

A) True 
 B)False

Question 6

_______________ is (are)highly cellular,vascular,and neural.

Accepted Answer

A)  Oxytalan fibers 
B)  Interstitial spaces 
C)  Periodontal ligaments 
D)  Fibrous connective tissue 
A)  Oxytalan fibers 
B)  Interstitial spaces 
C)  Periodontal ligaments 
D)  Fibrous connective tissue

Question 7

Which of the following is found on the surface of cementum?

Accepted Answer

A)  Fibroblasts 
B)  Cementicles 
C)  Cementocytes 
D)  Cementoblasts 
A)  Fibroblasts 
B)  Cementicles 
C)  Cementocytes 
D)  Cementoblasts

Question 8

The overall general health of an individual affects the health of the periodontium.

Accepted Answer

A) True 
 B)False

Question 9

Which pressure receptors are found in the periodontal ligament?

Accepted Answer

A)  Ruffini 
B)  Pacinian 
C)  Meissner 
D)  All of the above 
A)  Ruffini 
B)  Pacinian 
C)  Meissner 
D)  All of the above

Question 10

The periodontal ligament performs which secondary function?

Accepted Answer

A)  Insulating and protecting the pulp 
B)  Forming cementum,bone,and enamel 
C)  Providing a sensory supply to the cementum 
D)  Supplying nutrients to the cementum and alveolar bone 
A)  Insulating and protecting the pulp 
B)  Forming cementum,bone,and enamel 
C)  Providing a sensory supply to the cementum 
D)  Supplying nutrients to the cementum and alveolar bone

Question 11

Which are the most numerous cells of the periodontal ligament?

Accepted Answer

A)  Cementoblasts 
B)  Osteoblasts 
C)  Fibroblasts 
D)  Macrophages 
A)  Cementoblasts 
B)  Osteoblasts 
C)  Fibroblasts 
D)  Macrophages

Question 12

Which of the following types of dentoalveolar periodontal ligament fibers extends from the surface of the tooth to the adjacent fundic alveolar bone?

Accepted Answer

A)  Horizontal fiber group 
B)  Oblique fiber group 
C)  Apical fiber group 
D)  Alveolar crest fiber group 
A)  Horizontal fiber group 
B)  Oblique fiber group 
C)  Apical fiber group 
D)  Alveolar crest fiber group

Question 13

The periodontal ligament (periodontium)has a width of _________ mm.

Accepted Answer

A)  0.015 to 0.038 
B)  0.15 to 0.38 
C)  0.045 to 0.080 
D)  0.45 to 0.80 
A)  0.015 to 0.038 
B)  0.15 to 0.38 
C)  0.045 to 0.080 
D)  0.45 to 0.80

Question 14

The periodontal ligament is thinnest in the midroot zone.

Accepted Answer

A) True 
 B)False

Question 15

Tooth movement will elicit the ________ of cementum.

Accepted Answer

A)  necrosis 
B)  ingestion 
C)  resorption 
D)  absorption 
A)  necrosis 
B)  ingestion 
C)  resorption 
D)  absorption

Question 16

The primary function of the periodontal ligament is to do which of the following?

Accepted Answer

A)  Support the teeth. 
B)  Provide nutrition. 
C)  Transmit neural input. 
D)  Protect the cementum. 
A)  Support the teeth. 
B)  Provide nutrition. 
C)  Transmit neural input. 
D)  Protect the cementum.

Question 17

The periodontal ligament is composed of fibers,cells,and ___________.

Accepted Answer

A)  synovial fluid 
B)  visceral fascia 
C)  crevicular fluid 
D)  intercellular substance 
A)  synovial fluid 
B)  visceral fascia 
C)  crevicular fluid 
D)  intercellular substance

Question 18

The jaw jerk reflex is a test for which structure?

Accepted Answer

A)  Pterygoid muscle 
B)  Trigeminal nerve 
C)  Periodontal ligament 
D)  Temporomandibular joint 
A)  Pterygoid muscle 
B)  Trigeminal nerve 
C)  Periodontal ligament 
D)  Temporomandibular joint

Question 19

______________ create and destroy collagen fibers,as needed.

Accepted Answer

A)  Fibroblasts 
B)  Osteoclasts 
C)  Macrophages 
D)  Cementoblasts 
A)  Fibroblasts 
B)  Osteoclasts 
C)  Macrophages 
D)  Cementoblasts

Question 20

Epithelial rests always occur along the root surface.

Accepted Answer

A) True 
 B)False

The width (thickness)of the periodontal ligament increases with age.

The periodontal ligament connects with the gingival tissues.

Interstitial spaces of the periodontal ligament contain

Each of the following objects in the periodontal ligament are phagocytosed by macrophages EXCEPT one.Which one is the EXCEPTION?

Cementoblasts repair resorbed cementum.

_______________ is (are)highly cellular,vascular,and neural.

Which of the following is found on the surface of cementum?

The overall general health of an individual affects the health of the periodontium.

Which pressure receptors are found in the periodontal ligament?

The periodontal ligament performs which secondary function?

Which are the most numerous cells of the periodontal ligament?

Which of the following types of dentoalveolar periodontal ligament fibers extends from the surface of the tooth to the adjacent fundic alveolar bone?

The periodontal ligament (periodontium)has a width of _________ mm.

The periodontal ligament is thinnest in the midroot zone.

Tooth movement will elicit the ________ of cementum.

The primary function of the periodontal ligament is to do which of the following?

The periodontal ligament is composed of fibers,cells,and ___________.

The jaw jerk reflex is a test for which structure?

______________ create and destroy collagen fibers,as needed.

Epithelial rests always occur along the root surface.

Development and Structure of Cells and Tissues

Structure and Function of Cells, tissues, and Organs

Development of the Oral Facial Region

Development of the Face and Palate

Development of Teeth

Eruption and Shedding of Teeth

Enamel

Dentin

Dental Pulp

Cementum

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters

Exam 11: Periodontium: Periodontal Ligament

The width (thickness)of the periodontal ligament increases with age.

The periodontal ligament connects with the gingival tissues.

Interstitial spaces of the periodontal ligament contain

Each of the following objects in the periodontal ligament are phagocytosed by macrophages EXCEPT one.Which one is the EXCEPTION?

Cementoblasts repair resorbed cementum.

_______________ is (are)highly cellular,vascular,and neural.

Which of the following is found on the surface of cementum?

The overall general health of an individual affects the health of the periodontium.

Which pressure receptors are found in the periodontal ligament?

The periodontal ligament performs which secondary function?

Which are the most numerous cells of the periodontal ligament?

Which of the following types of dentoalveolar periodontal ligament fibers extends from the surface of the tooth to the adjacent fundic alveolar bone?

The periodontal ligament (periodontium)has a width of _________ mm.

The periodontal ligament is thinnest in the midroot zone.

Tooth movement will elicit the ________ of cementum.

The primary function of the periodontal ligament is to do which of the following?

The periodontal ligament is composed of fibers,cells,and ___________.

The jaw jerk reflex is a test for which structure?

______________ create and destroy collagen fibers,as needed.

Epithelial rests always occur along the root surface.

Development and Structure of Cells and Tissues

Structure and Function of Cells, tissues, and Organs

Development of the Oral Facial Region

Development of the Face and Palate

Development of Teeth

Eruption and Shedding of Teeth

Enamel

Dentin

Dental Pulp

Cementum

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters