Oral Flora and Dental Plaque

Prokaryotic organisms have

Which of these are examples of oral habitats for microorganisms?

Which of these are non-specific defence factors found in saliva?

Which of these are specific defence factors found in saliva?

What are the most important buffer systems of saliva?

Lysozyme functions by cleaving the [blank_start]beta[blank_end]-1-4 linkage between N-acetylg[blank_start]lucosamine[blank_end] and N-acetylm[blank_start]uramic[blank_end] acid which is the repeating [blank_start]di[blank_end]saccharide unit of cell wall p[blank_start]eptidoglycan[blank_end]. This means it can lyse many streptococci.

What pH of saliva promotes growth of some cariogenic bacteria?

Which of these are functions of GCF?

What is an example of a defence factor in GCF?

What is the predominant leukocyte in GCF?

What is an example of a synergistic interaction of bacteria?

Co-aggregation of the same species of bacteria is known as...

What does BLIS stand for?

What is the main prerequisite for host colonisation?

Which of these substances are extracellular polysaccharides produced by certain bacteria?

What species of bacteria predominates in fissures?

Prevotella, Porphyromonas and Spirochaetes tend to colonise the

Strep and Actinomyces spp. tend to attach to the

Anaerobic bacteria do not tend to appear until adolescence.

Loss of all the teeth (senility) leads to oral microflora similar to..

Denture plaque is most similar to...

Dental plaque contains...

Organic matrix makes up ___ of plaque

Plaque is the result of mineralisation of calculus

Glucose is a better intracellular store than glycogen for bacteria.

The enzyme(s) involved in extracellular polysaccharide formation is/are...

Xylitol is fermented but very slowly

Starch is less cariogenic than sucrose

Cooked starch and sucrose is more cariogenic than sucrose alone

____________________ help bacteria to continue to produce acid after dietary sugar is exhausted

The most important acid resulting in caries is...

Why can sucrose readily diffuse into plaque?

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Glucosyltransferase can break down sucrose.

Fructosyltransferase can break down sucrose.

Glucosyltransferase converts sucrose into fructans and glucans.

Label the diagram

Irreversible short range interactions of plaque involve