Question 1

Each of the following can be damaged by an overhanging restoration EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Contact point 
B)  Marginal gingiva 
C)  Plaque retention 
D)  Alveolar bone 
E)  Contact area 
A)  Contact point 
B)  Marginal gingiva 
C)  Plaque retention 
D)  Alveolar bone 
E)  Contact area A

Question 2

Embrasures are spillways between teeth that allow food to be shunted away from contact areas.While effective embrasures are self-cleaning,poorly contoured embrasures lead to gingival irritation and breakdown.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. A

Question 3

Each of the following statements is true of the curvature of the CEJ EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  The curvature of the cervical line,or CEJ,depends on the height of the contact area. 
B)  The curvature of the cervical line,or CEJ,depends on the diameter of the crown. 
C)  The mandibular anterior teeth show the greatest amount of curvature of the cervical line. 
D)  The more anterior the tooth,the greater is the curvature of the cervical line. 
A)  The curvature of the cervical line,or CEJ,depends on the height of the contact area. 
B)  The curvature of the cervical line,or CEJ,depends on the diameter of the crown. 
C)  The mandibular anterior teeth show the greatest amount of curvature of the cervical line. 
D)  The more anterior the tooth,the greater is the curvature of the cervical line. C

Question 4

Alignment refers to the height or level of alveolar bone between teeth.

Accepted Answer

A) True 
 B)False

Question 5

Each of the following is a function of embrasures EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Provide self-cleansing from the contact area 
B)  Reduce occlusal trauma 
C)  Discourage food impaction 
D)  Prevent gingival stimulation 
A)  Provide self-cleansing from the contact area 
B)  Reduce occlusal trauma 
C)  Discourage food impaction 
D)  Prevent gingival stimulation

Question 6

MATCHING
Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term.
-CEJ

Accepted Answer

A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact 
A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact

Question 7

Each of the following is part of the periodontium EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Enamel 
B)  Cementum 
C)  Free gingiva 
D)  Alveolar mucosa 
E)  Alveolar bone 
A)  Enamel 
B)  Cementum 
C)  Free gingiva 
D)  Alveolar mucosa 
E)  Alveolar bone

Question 8

What are the arrows pointing to in the illustration below?

Accepted Answer

A)  Contact areas 
B)  Height of curvature 
C)  Buccal contour 
D)  Excess curvature 
E)  None of the above 
A)  Contact areas 
B)  Height of curvature 
C)  Buccal contour 
D)  Excess curvature 
E)  None of the above

Question 9

MATCHING
Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term.
-Interproximal space

Accepted Answer

A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact 
A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact

Question 10

Which illustration depicts an overcontoured restoration?

Accepted Answer

A)    
B)    
C)    
A)    
B)    
C)

Question 11

A molar with little or no curvature on the buccal surface would result in

Accepted Answer

A)  open contact area 
B)  overstimulation of gingiva 
C)  inadequate stimulation of gingiva 
D)  difficult oral hygiene access 
A)  open contact area 
B)  overstimulation of gingiva 
C)  inadequate stimulation of gingiva 
D)  difficult oral hygiene access

Question 12

An overhanging restoration extends above the occlusal surface and prevents normal occlusal contact between the arches.

Accepted Answer

A) True 
 B)False

Question 13

Interproximal spaces lie between teeth and bone on one side and the proximal surfaces and their contact area on the other side.Interproximal spaces are U-shaped in posterior regions and more rounded in anterior regions.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false.

Question 14

Contact point and contact area are synonymous terms;that is,they mean the same thing.

Accepted Answer

A) True 
 B)False

Question 15

Each of the following is a characteristic of contact areas EXCEPT one.Which one is the EXCEPTION?

Accepted Answer

A)  Stabilize teeth 
B)  Discourage food impaction 
C)  Are located in middle third of tooth 
D)  Protect interdental papilla 
E)  All are true. 
A)  Stabilize teeth 
B)  Discourage food impaction 
C)  Are located in middle third of tooth 
D)  Protect interdental papilla 
E)  All are true.

Question 16

Posterior teeth have contact areas slightly buccal to the center of teeth.Lingual embrasures of posterior teeth are wider than buccal embrasures.

Accepted Answer

A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false. 
A)  Both statements are true. 
B)  The first statement is true;the second statement is false. 
C)  The first statement is false;the second statement is true. 
D)  Both statements are false.

Question 17

The facial crest of curvature for all teeth is located at the cervical third.

Accepted Answer

A) True 
 B)False

Question 18

Deep pits and fissures on the occlusal surface make cleaning the tooth difficult.

Accepted Answer

A) True 
 B)False

Question 19

MATCHING
Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term.
-Contact point

Accepted Answer

A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact 
A) Interdental space 
B) Crest of curvature 
C) Cervical line 
D) Embrasure 
E) Occlusal contact

Question 20

The curvature of the CEJ is generally greater on the mesial surfaces.

Accepted Answer

A) True 
 B)False

Exam 3: Fundamental and Preventive Curvatures

Each of the following can be damaged by an overhanging restoration EXCEPT one.Which one is the EXCEPTION?

Embrasures are spillways between teeth that allow food to be shunted away from contact areas.While effective embrasures are self-cleaning,poorly contoured embrasures lead to gingival irritation and breakdown.

Each of the following statements is true of the curvature of the CEJ EXCEPT one.Which one is the EXCEPTION?

Alignment refers to the height or level of alveolar bone between teeth.

Each of the following is a function of embrasures EXCEPT one.Which one is the EXCEPTION?

MATCHING Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term. -CEJ

Each of the following is part of the periodontium EXCEPT one.Which one is the EXCEPTION?

What are the arrows pointing to in the illustration below?

MATCHING Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term. -Interproximal space

Which illustration depicts an overcontoured restoration?

A molar with little or no curvature on the buccal surface would result in

An overhanging restoration extends above the occlusal surface and prevents normal occlusal contact between the arches.

Interproximal spaces lie between teeth and bone on one side and the proximal surfaces and their contact area on the other side.Interproximal spaces are U-shaped in posterior regions and more rounded in anterior regions.

Contact point and contact area are synonymous terms;that is,they mean the same thing.

Each of the following is a characteristic of contact areas EXCEPT one.Which one is the EXCEPTION?

Posterior teeth have contact areas slightly buccal to the center of teeth.Lingual embrasures of posterior teeth are wider than buccal embrasures.

The facial crest of curvature for all teeth is located at the cervical third.

Deep pits and fissures on the occlusal surface make cleaning the tooth difficult.

MATCHING Characteristics of tooth shape and alignment protect the periodontium,preserve the dentition,and enhance self-cleaning mechanisms.Match each anatomic feature with its most closely related corresponding term. -Contact point

The curvature of the CEJ is generally greater on the mesial surfaces.

Oral Cavity

The Tooth: Functions and Terms

Dentition

Development, form, and Eruption

Occlusion

Dental Anomalies

Supporting Structures

Clinical Considerations

Tooth Identification

Root Morphology

Incisors

Canines

Premolars

Molars

Deciduous Dentition

Basic Tissues

Development of Orofacial Complex

Dental Lamina and Enamel Organ

Enamel, Dentin, and Pulp

Root Formation and Attachment Apparatus

Eruption and Shedding of Teeth

Oral Mucous Membrane

The Tongue

Histology of the Salivary Glands

Osteology of the Skull

Nose, Nasal Cavity, and Paranasal Sinuses

Muscles of Mastication, Hyoid Muscles, and Sternocleidomastoid and Trapezius Muscles

Tempo-romandibular Joint

Muscles of Facial Expression

Soft Palate and Pharynx

Arterial Supply and Venous Drainage

Salivary Glands

Nervous System

Lymphatics and Spread of Dental Infection

Anatomical Considerations of Local Anesthesia

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