Exam 4: Microbiology of Periodontal Diseases

Plaque biofilm is not a random accumulation of assorted types of bacteria; rather,it is a specific and complex arrangement based on bacterial characteristics.

Based on the specific plaque hypothesis,gingival health can be monitored by:

The first step of bacterial growth into biofilm is the ability to:

Glycocalyx is a loose,gel-like polysaccharide substance surrounding gram-negative bacteria,causing both aggregation and adherence to tooth structure.

Localized aggressive periodontitis (LAP)is characterized by:

Endotoxin is a:

One function of receptor molecules on the surface of bacteria is to:

Interactions among microbial species within plaque biofilm can do all of the following except one.Which one is the exception?

Saliva plays an important role in pellicle formation on the tooth surfaces through its:

All of the following are features of the microflora of chronic periodontitis except one.Which feature is the exception?

Which process facilitates bacterial aggregation?

What distinguishes supragingival dental plaque from material alba?

Early colonizing bacteria on tooth surfaces are:

Necrotizing ulcerative periodontitis:

As plaque biofilm ages:

Dental plaque is not the major etiologic factor in the initiation and progression of inflammatory periodontal disease.

All of the following are factors in the virulence of gram-negative bacteria except one.Which factor is the exception?

All of the following are characteristics of mature dental plaque biofilms except one.Which characteristic is the exception?

Morphotype refers to bacterial shapes.

Bacteria can be classified by their ability to live and grow in the presence or absence of oxygen.Bacteria requiring no oxygen to grow are known as: