Microbiology of Tooth Decay Quiz (Lec 22)

Microbiology of Tooth Decay Quiz (Lec 22)

Created by
@ResplendentMountainPeak

Questions and Answers

What is the role of Streptococcus mutans in dental caries?

It plays an important role in dental caries

What is the main role of fluoride in cavity prevention?

It helps in cavity prevention

What is the primary reason for bacteria adhering to tooth surfaces?

Bacteria interact with a layer of material on the tooth surface called the pellicle

What is the diversity of species in dental plaque?

<p>It consists of a diverse range of species</p> Signup and view all the answers

What is the usual state of the oral flora?

<p>It is normally a balanced ecosystem</p> Signup and view all the answers

How many cultivable species are known to be part of the oral flora?

<p>350 species</p> Signup and view all the answers

How many microbes per mL can saliva contain?

<p>Up to 100 million microbes</p> Signup and view all the answers

What is the consequence of a disturbance in the balanced oral flora?

<p>Some resident microbes can behave as opportunistic pathogens</p> Signup and view all the answers

What is the role of dextran and lactic acid in dental caries?

<p>They contribute to the demineralization of tooth enamel</p> Signup and view all the answers

What is the composition of dental calculus?

<p>It primarily consists of mineralized bacterial plaque</p> Signup and view all the answers

What is the primary function of biofilm in the context of dental health?

<p>It allows bacteria to adhere to tooth surfaces</p> Signup and view all the answers

What is the significance of gingivitis in the context of oral health?

<p>It is an important condition to understand in the context of oral health</p> Signup and view all the answers

What is the primary component of the pellicle?

<p>Mucins</p> Signup and view all the answers

What happens if plaque is allowed to build up?

<p>Periodontal damage caused by abrasions in the gingival membrane</p> Signup and view all the answers

What is the role of Streptococcus mutans in dental caries?

<p>Adheres to tooth surfaces and plays an important role in dental caries</p> Signup and view all the answers

What is the primary factor promoting tooth decay?

<p>Diet rich in sugar</p> Signup and view all the answers

What is the purpose of anti-calculus toothpastes containing pyrophosphate compounds?

<p>To adsorb excess calcium, reducing intraplaque development</p> Signup and view all the answers

What is the result of the transition from hunter-gatherer to farming diets?

<p>Shifted the oral microbial community to a disease-associated configuration</p> Signup and view all the answers

What does the enzyme glucosyltransferase (dextransucrase) produced by oral bacteria cause?

<p>The assembly of glucose units from sucrose into glucans</p> Signup and view all the answers

What is the primary component of dental plaque?

<p>Complex microbial community found on the tooth surface</p> Signup and view all the answers

What is the primary component of calculus?

<p>An insoluble calcium phosphate crystal</p> Signup and view all the answers

What allows bacterial products to be absorbed in calculus?

<p>Calculus being porous</p> Signup and view all the answers

What is the result of the decline in overall oral microbial diversity over the past few hundred years?

<p>The human mouth has become a substantially less biodiverse ecosystem</p> Signup and view all the answers

What is the effect of fluoride on tooth decay?

<p>Mineralization of fluoride between spaces of enamel rods preventing acid from seeping in</p> Signup and view all the answers

More Quizzes Like This

Microbiology and Infectious Diseases Quiz
7 questions
Microbiology and Disease Control
20 questions
Microbiology Exam 3
163 questions
Use Quizgecko on...
Browser
Browser