Dental Anatomy: Dentin Types and Development
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Questions and Answers

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?

    <p>Becomes brittle and porous</p> Signup and view all the answers

    What is the main bulk of dentin made of?

    <p>Intertubular Dentin</p> Signup and view all the answers

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

    <p>Dental Papilla</p> Signup and view all the answers

    What is the immediate wall of the dentinal tubules called?

    <p>Peritubular Dentin</p> Signup and view all the answers

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

    <p>Incisal and Cuspal areas</p> Signup and view all the answers

    Where does more Secondary Dentin develop in molars and bicuspids?

    <p>On the floor and roof of the Pulp Chamber</p> Signup and view all the answers

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

    <p>Circumpulpal Dentin</p> Signup and view all the answers

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

    <p>Beneath the Enamel</p> Signup and view all the answers

    What is the characteristic of Dead Tracts in dentin?

    <p>Tubules are filled with air due to degeneration of vital contents</p> 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?

    <p>To avoid degeneration and disintegration of Odontoblastic Processes</p> Signup and view all the answers

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

    <p>Because of the high organic content in Dentin</p> Signup and view all the answers

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

    <p>Complete removal of carious Dentin</p> Signup and view all the answers

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

    <p>Utilizing sharp burs, coolants, desensitizing paste, and anesthetic agents</p> Signup and view all the answers

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