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17 Questions

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Dental Defects and Caries

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Questions and Answers

What is the characteristic of the infected dentin in acute caries?

It has a light color (correct)

It has a dark color

It is hard

It is difficult to remineralize

What is the primary cause of dental caries?

A chronic and biofilm-mediated disease modulated by diet

A shift in the microbiome to acidophilic and acidogenic bacteria

An imbalance of the oral flora due to the presence of fermentable dietary carbohydrates (correct)

A decrease in the concentration of soluble calcium and phosphate in the tooth

What is the primary difference between tertiary dentin and primary dentin?

The response to stimuli

The number of dentinal tubules

The degree of mineralization (correct)

The location in the tooth

What is the function of sclerotic dentin in response to caries?

To block dentinal tubules Signup and view all the answers

What is the pH level below which organic acids can cause demineralization of enamel?

5.5 Signup and view all the answers

What age group is more likely to have chronic caries?

Older adults Signup and view all the answers

What is the process by which mineral can be added back to partially demineralized enamel?

Remineralization Signup and view all the answers

What is the characteristic of an active carious lesion?

Whitish or yellowish in color and opaque Signup and view all the answers

What is the characteristic of the lesion in chronic caries?

It is hard and dark Signup and view all the answers

What is the result of severe demineralization in dentin?

Denaturation and degradation of the collagen matrix Signup and view all the answers

What is the primary function of tertiary dentin?

To respond to stimuli Signup and view all the answers

What is the characteristic of sclerotic dentin clinically?

It is hard and dark in color Signup and view all the answers

What is the characteristic of an inactive carious lesion?

Is brown or black in color and shiny or glossy Signup and view all the answers

What is the primary factor that modulates dental caries?

Diet Signup and view all the answers

What is the primary difference between acute and chronic caries?

The rate of progression Signup and view all the answers

What is the result of ongoing demineralization in enamel?

Collapse of the surface and cavitation Signup and view all the answers

What is the characteristic of tertiary dentin in terms of dentinal tubules?

It has irregular dentinal tubules Signup and view all the answers