Dental Anatomy: Dentin Types and Development

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What is the main function of dentin in a tooth?

Contains the protoplasmic extensions of Odontoblasts

Gives color to the tooth

Supports the enamel (correct)

Forms the central cavity

What happens to dentin when it is immersed in acid?

It hardens

Softens and can be cut (correct)

Becomes more elastic

Becomes transparent

Which component of dentin is responsible for its high radiolucency?

Alpha and Beta fibers (correct)

Hydroxyapatite crystals

Mucopolysaccharides

Water

How does burning affect the properties of dentin?

Becomes brittle and porous Signup and view all the answers

What is the main bulk of dentin made of?

Intertubular Dentin Signup and view all the answers

Where are the Korff's fibers believed to be produced?

Dental Papilla Signup and view all the answers

What is the immediate wall of the dentinal tubules called?

Peritubular Dentin Signup and view all the answers

At which areas are Dentinal Tubules found to be in a straight course?

Incisal and Cuspal areas Signup and view all the answers

Where does more Secondary Dentin develop in molars and bicuspids?

On the floor and roof of the Pulp Chamber Signup and view all the answers

Which type of dentin contains Beta fibers as the principal component?

Circumpulpal Dentin Signup and view all the answers

Where is Mantle Dentin located in relation to Enamel and Cementum?

Beneath the Enamel Signup and view all the answers

What is the characteristic of Dead Tracts in dentin?

Tubules are filled with air due to degeneration of vital contents Signup and view all the answers

What is the reason for avoiding the application of strong drugs, irritating materials, excessive operative trauma, and thermal changes on exposed Dentin?

To avoid degeneration and disintegration of Odontoblastic Processes Signup and view all the answers

Why does Caries penetrate and spread faster in Dentin compared to other dental structures?

Because of the high organic content in Dentin Signup and view all the answers

What leads to the development of Secondary Dentin in cases of deep-seated lesions?

Complete removal of carious Dentin Signup and view all the answers

How can pain in Dentin be reduced according to the text?

Utilizing sharp burs, coolants, desensitizing paste, and anesthetic agents Signup and view all the answers