Question 1

Lipopolysaccharides are released during cell wall disruption,which is a characteristic of gram-positive bacteria.

Accepted Answer

A) True 
 B)False

Question 2

Saccharolytic (sugar-consuming)bacteria:

Accepted Answer

A)  Usually possess fimbriae. 
B)  Produce amino acid end-products. 
C)  Cannot survive in an oxygenated environment. 
D)  Obtain energy from carbohydrate metabolism. 
A)  Usually possess fimbriae. 
B)  Produce amino acid end-products. 
C)  Cannot survive in an oxygenated environment. 
D)  Obtain energy from carbohydrate metabolism.

Question 3

Streptococci are the predominant type of bacteria located in which oral microbial ecosystem?

Accepted Answer

A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces 
A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces

Question 4

All of the following are characteristics of salivary glycoproteins except one.Which characteristic is the exception?

Accepted Answer

A)  They form pellicle. 
B)  They promote bacterial aggregation. 
C)  They result from lysis of the bacterial cell wall. 
D)  They enhance binding of bacteria to tooth surfaces. 
A)  They form pellicle. 
B)  They promote bacterial aggregation. 
C)  They result from lysis of the bacterial cell wall. 
D)  They enhance binding of bacteria to tooth surfaces.

Question 5

Dental plaque is the major etiologic factor in the initiation and progression of inflammatory periodontal disease.

Accepted Answer

A) True 
 B)False

Question 6

Which factor facilitates the early growth of subgingival plaque?

Accepted Answer

A)  Predominance of filamentous bacteria 
B)  Greater production of fermentation end-products 
C)  Presence of hemin-containing proteins in crevicular fluid 
D)  Formation of highly branched extracellular polysaccharides 
A)  Predominance of filamentous bacteria 
B)  Greater production of fermentation end-products 
C)  Presence of hemin-containing proteins in crevicular fluid 
D)  Formation of highly branched extracellular polysaccharides

Question 7

In the nonspecific plaque hypothesis,plaque is homogeneous in nature,all microorganisms in plaque have pathogenic potential,and recognizing inflammation is related to age and the quantity of dental plaque biofilm.

Accepted Answer

A) True 
 B)False

Question 8

Mature supragingival plaque biofilm is characterized by:

Accepted Answer

A)  Increased consumption of oxygen 
B)  The ability to invade the subgingival space 
C)  The presence of a single pathogenic species 
D)  Increased numbers of facultative anaerobes that inhibit obligate anaerobes 
A)  Increased consumption of oxygen 
B)  The ability to invade the subgingival space 
C)  The presence of a single pathogenic species 
D)  Increased numbers of facultative anaerobes that inhibit obligate anaerobes

Question 9

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that can grow in both oxygen-rich and oxygen-deficient environments are known as:

Accepted Answer

A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes 
A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes

Question 10

Which oral microbial ecosystem is distinctive as it represents a unique and changing environment for microorganisms that are protective in nature?

Accepted Answer

A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces 
A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces

Question 11

Gram-staining procedures distinguish the characteristics of bacterial cell walls.

Accepted Answer

A) True 
 B)False

Question 12

Halitosis in 50% of individuals can be attributed to plaque biofilm in which oral microbial ecosystem?

Accepted Answer

A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces 
A)  Tongue 
B)  Oral mucosal surfaces 
C)  Saliva 
D)  Supragingival tooth surfaces 
E)  Subgingival tooth surfaces

Question 13

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that cannot survive in oxygen-rich environments are known as:

Accepted Answer

A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes 
A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes

Question 14

Which characteristic describes the primary periodontal pathogens?

Accepted Answer

A)  Motility 
B)  Lack of motility 
C)  Fimbriae on the cell surface 
D)  Filaments on the cell surface 
A)  Motility 
B)  Lack of motility 
C)  Fimbriae on the cell surface 
D)  Filaments on the cell surface

Question 15

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria requiring oxygen to grow are known as:

Accepted Answer

A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes 
A)  Anaerobes 
B)  Aerobes 
C)  Facultative anaerobes 
D)  Obligate anaerobes

Lipopolysaccharides are released during cell wall disruption,which is a characteristic of gram-positive bacteria.

Saccharolytic (sugar-consuming)bacteria:

Streptococci are the predominant type of bacteria located in which oral microbial ecosystem?

All of the following are characteristics of salivary glycoproteins except one.Which characteristic is the exception?

Dental plaque is the major etiologic factor in the initiation and progression of inflammatory periodontal disease.

Which factor facilitates the early growth of subgingival plaque?

In the nonspecific plaque hypothesis,plaque is homogeneous in nature,all microorganisms in plaque have pathogenic potential,and recognizing inflammation is related to age and the quantity of dental plaque biofilm.

Mature supragingival plaque biofilm is characterized by:

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that can grow in both oxygen-rich and oxygen-deficient environments are known as:

Which oral microbial ecosystem is distinctive as it represents a unique and changing environment for microorganisms that are protective in nature?

Gram-staining procedures distinguish the characteristics of bacterial cell walls.

Halitosis in 50% of individuals can be attributed to plaque biofilm in which oral microbial ecosystem?

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that cannot survive in oxygen-rich environments are known as:

Which characteristic describes the primary periodontal pathogens?

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria requiring oxygen to grow are known as:

Historical Perspectives on Dental Hygiene and Periodontology

Periodontium: Anatomic Characteristics and Host Response

Epidemiology of Periodontal Diseases

Calculus and Other Disease-Associated Factors

Gingival Diseases

Periodontal Diseases

Clinical Assessment

Systemic Factors Influencing Periodontal Diseases

Treatment Planning for the Periodontal Patient

Occlusion and Temporomandibular Disorders

Plaque Biofilm and Disease Control for the Periodontal Patient

Nonsurgical Periodontal Therapy

Periodontal Surgery

Dental Implants

Periodontal Emergencies

Periodontal Maintenance and Prevention

Prognosis and Results After Periodontal Therapy

Filters

Exam 4: Microbiology of Periodontal Diseases

Lipopolysaccharides are released during cell wall disruption,which is a characteristic of gram-positive bacteria.

Saccharolytic (sugar-consuming)bacteria:

Streptococci are the predominant type of bacteria located in which oral microbial ecosystem?

All of the following are characteristics of salivary glycoproteins except one.Which characteristic is the exception?

Dental plaque is the major etiologic factor in the initiation and progression of inflammatory periodontal disease.

Which factor facilitates the early growth of subgingival plaque?

In the nonspecific plaque hypothesis,plaque is homogeneous in nature,all microorganisms in plaque have pathogenic potential,and recognizing inflammation is related to age and the quantity of dental plaque biofilm.

Mature supragingival plaque biofilm is characterized by:

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that can grow in both oxygen-rich and oxygen-deficient environments are known as:

Which oral microbial ecosystem is distinctive as it represents a unique and changing environment for microorganisms that are protective in nature?

Gram-staining procedures distinguish the characteristics of bacterial cell walls.

Halitosis in 50% of individuals can be attributed to plaque biofilm in which oral microbial ecosystem?

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria that cannot survive in oxygen-rich environments are known as:

Which characteristic describes the primary periodontal pathogens?

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria requiring oxygen to grow are known as:

Historical Perspectives on Dental Hygiene and Periodontology

Periodontium: Anatomic Characteristics and Host Response

Epidemiology of Periodontal Diseases

Calculus and Other Disease-Associated Factors

Gingival Diseases

Periodontal Diseases

Clinical Assessment

Systemic Factors Influencing Periodontal Diseases

Treatment Planning for the Periodontal Patient

Occlusion and Temporomandibular Disorders

Plaque Biofilm and Disease Control for the Periodontal Patient

Nonsurgical Periodontal Therapy

Periodontal Surgery

Dental Implants

Periodontal Emergencies

Periodontal Maintenance and Prevention

Prognosis and Results After Periodontal Therapy

Filters