Question 1

Primary and permanent teeth have a similar enamel prism structure,except at the tooth surface.

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following is clinically seen as tooth eruption?

Accepted Answer

A)  Light and dark bands 
B)  Interlocking of the rods 
C)  Blanching of the mucosa 
D)  Crystallization of the enamel rods 
A)  Light and dark bands 
B)  Interlocking of the rods 
C)  Blanching of the mucosa 
D)  Crystallization of the enamel rods C

Question 3

The permanent teeth that replace the primary teeth are called ______.

Accepted Answer

A)  supportive 
B)  accessional 
C)  overlapping 
D)  successional 
A)  supportive 
B)  accessional 
C)  overlapping 
D)  successional D

Question 4

Why are humans considered to be diphyodonts?

Accepted Answer

A)  Because they possess two dentitions. 
B)  Because the adult molars are intended for chewing plants. 
C)  Because the adult canines are pointed and have a single cusp. 
D)  Because the mesio-distal dimension of the adult premolars is less than that of the primary molars. 
A)  Because they possess two dentitions. 
B)  Because the adult molars are intended for chewing plants. 
C)  Because the adult canines are pointed and have a single cusp. 
D)  Because the mesio-distal dimension of the adult premolars is less than that of the primary molars.

Question 5

The ______ stage of tooth development contains permanent and primary teeth in various stages of formation.

Accepted Answer

A)  preeruptive 
B)  mixed dentition 
C)  late prefunctional 
D)  functional eruptive 
A)  preeruptive 
B)  mixed dentition 
C)  late prefunctional 
D)  functional eruptive

Question 6

The eruption process is rapid and continuous.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following best defines ankylosis?

Accepted Answer

A)  A fusion of tooth roots to the bony socket 
B)  A process that leads to tooth eruption 
C)  The removal of bone overlying the bony crypt 
D)  The eruption of a tooth into a space occupied by an opposing tooth 
A)  A fusion of tooth roots to the bony socket 
B)  A process that leads to tooth eruption 
C)  The removal of bone overlying the bony crypt 
D)  The eruption of a tooth into a space occupied by an opposing tooth

Question 8

Enamel is about twice as thick in permanent teeth as it is in primary teeth.

Accepted Answer

A) True 
 B)False

Question 9

Special _______ cells destroy collagen fibers by ingestion.

Accepted Answer

A)  fibroblast 
B)  osteoclast 
C)  osteoblast 
D)  amino acid 
A)  fibroblast 
B)  osteoclast 
C)  osteoblast 
D)  amino acid

Question 10

Which type of teeth are not successors of primary teeth?

Accepted Answer

A)  Adult incisors 
B)  Adult canines 
C)  Adult premolars 
D)  Adult molars 
A)  Adult incisors 
B)  Adult canines 
C)  Adult premolars 
D)  Adult molars

Question 11

During eruption,the epithelial attachment shifts to the cervical area.

Accepted Answer

A) True 
 B)False

Question 12

Hard tissue resorption comprises which two phases?

Accepted Answer

A)  Mineral and collagen phases 
B)  Prefunctional and functional phases 
C)  Extracellular and intracellular phases 
D)  Fibroblast eruptive and osteoclast functional phases 
A)  Mineral and collagen phases 
B)  Prefunctional and functional phases 
C)  Extracellular and intracellular phases 
D)  Fibroblast eruptive and osteoclast functional phases

Question 13

Which of the following occurs when root formation begins?

Accepted Answer

A)  The epithelial root sheath proliferates. 
B)  The tooth's crown tip enters the oral cavity. 
C)  Fibrous tissue surrounding the follicle increases. 
D)  Reduced enamel epithelium contacts and fuses with the oral epithelium. 
A)  The epithelial root sheath proliferates. 
B)  The tooth's crown tip enters the oral cavity. 
C)  Fibrous tissue surrounding the follicle increases. 
D)  Reduced enamel epithelium contacts and fuses with the oral epithelium.

Question 14

Active osteoclasts are multinucleated.

Accepted Answer

A) True 
 B)False

Question 15

How many teeth are in the primary dentition and how many teeth are in the permanent dentition?

Accepted Answer

A)  20 in primary;28 in permanent 
B)  20 in primary;32 in permanent 
C)  32 in primary;32 in permanent 
D)  32 in primary;52 in permanent 
A)  20 in primary;28 in permanent 
B)  20 in primary;32 in permanent 
C)  32 in primary;32 in permanent 
D)  32 in primary;52 in permanent

Question 16

Tooth eruption requires formation of the eruption

Accepted Answer

A)  ruffled border. 
B)  diphyodont. 
C)  pathway. 
D)  leeway space. 
A)  ruffled border. 
B)  diphyodont. 
C)  pathway. 
D)  leeway space.

Question 17

Which of the following is the origin of osteoclasts?

Accepted Answer

A)  Fibroblasts 
B)  Monocytes 
C)  Amino acids 
D)  Root resorption 
A)  Fibroblasts 
B)  Monocytes 
C)  Amino acids 
D)  Root resorption

Question 18

Fusion of the tooth (reduced enamel epithelium)with the oral epithelium forms which type of connection?

Accepted Answer

A)  Periodontal ligament 
B)  Junctional epithelium 
C)  Trabeculae 
D)  Fundic 
A)  Periodontal ligament 
B)  Junctional epithelium 
C)  Trabeculae 
D)  Fundic

Question 19

The prefunctional eruptive phase is characterized by dormancy in the tissues overlying,surrounding,and underlying the teeth.

Accepted Answer

A) True 
 B)False

Question 20

Final maturation of the periodontal ligament (PDL)fibers occurs

Accepted Answer

A)  at the cap stage of tooth formation. 
B)  when the teeth first erupt through the gingiva. 
C)  when the teeth reach functional occlusion. 
D)  when the root is half formed. 
A)  at the cap stage of tooth formation. 
B)  when the teeth first erupt through the gingiva. 
C)  when the teeth reach functional occlusion. 
D)  when the root is half formed.

Primary and permanent teeth have a similar enamel prism structure,except at the tooth surface.

Which of the following is clinically seen as tooth eruption?

The permanent teeth that replace the primary teeth are called ______.

Why are humans considered to be diphyodonts?

The ______ stage of tooth development contains permanent and primary teeth in various stages of formation.

The eruption process is rapid and continuous.

Which of the following best defines ankylosis?

Enamel is about twice as thick in permanent teeth as it is in primary teeth.

Special _______ cells destroy collagen fibers by ingestion.

Which type of teeth are not successors of primary teeth?

During eruption,the epithelial attachment shifts to the cervical area.

Hard tissue resorption comprises which two phases?

Which of the following occurs when root formation begins?

Active osteoclasts are multinucleated.

How many teeth are in the primary dentition and how many teeth are in the permanent dentition?

Tooth eruption requires formation of the eruption

Which of the following is the origin of osteoclasts?

Fusion of the tooth (reduced enamel epithelium)with the oral epithelium forms which type of connection?

The prefunctional eruptive phase is characterized by dormancy in the tissues overlying,surrounding,and underlying the teeth.

Final maturation of the periodontal ligament (PDL)fibers occurs

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

Enamel

Dentin

Dental Pulp

Cementum

Periodontium: Periodontal Ligament

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters

Exam 6: Eruption and Shedding of Teeth

Primary and permanent teeth have a similar enamel prism structure,except at the tooth surface.

Which of the following is clinically seen as tooth eruption?

The permanent teeth that replace the primary teeth are called ______.

Why are humans considered to be diphyodonts?

The ______ stage of tooth development contains permanent and primary teeth in various stages of formation.

The eruption process is rapid and continuous.

Which of the following best defines ankylosis?

Enamel is about twice as thick in permanent teeth as it is in primary teeth.

Special _______ cells destroy collagen fibers by ingestion.

Which type of teeth are not successors of primary teeth?

During eruption,the epithelial attachment shifts to the cervical area.

Hard tissue resorption comprises which two phases?

Which of the following occurs when root formation begins?

Active osteoclasts are multinucleated.

How many teeth are in the primary dentition and how many teeth are in the permanent dentition?

Tooth eruption requires formation of the eruption

Which of the following is the origin of osteoclasts?

Fusion of the tooth (reduced enamel epithelium)with the oral epithelium forms which type of connection?

The prefunctional eruptive phase is characterized by dormancy in the tissues overlying,surrounding,and underlying the teeth.

Final maturation of the periodontal ligament (PDL)fibers occurs

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

Enamel

Dentin

Dental Pulp

Cementum

Periodontium: Periodontal Ligament

Periodontium: Alveolar Process and Cementum

Temporomandibular Joint

Oral Mucosa

Salivary Glands and Tonsils

Biofilms

Filters