Dental Caries and Tooth Decay
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Questions and Answers

What is the main cause of dental caries?

  • Bacterial activity in a dental biofilm (correct)
  • Chemical reaction with food particles
  • Mechanical trauma to the tooth surface
  • Excessive fluoride intake
  • In which areas of the dentition are dental caries lesions more likely to develop?

  • Exposed root surfaces
  • Enamel surfaces
  • Any tooth site in the oral cavity
  • Pits, grooves, and fissures in occlusal surfaces (correct)
  • What type of sites allow dental biofilms to accumulate and mature over time?

  • Tooth surfaces cleaned regularly with mouthwash
  • Fluoridated tooth surfaces
  • Tooth surfaces with naturally higher pH levels
  • Protected sites in the dentition (correct)
  • Why are openings of the major salivary glands considered areas with relative protection towards chemical dissolution?

    <p>Special salivary composition with buffering capacity</p> Signup and view all the answers

    Where are faulty restorations mentioned as sites where dental caries lesions are more likely to occur?

    <p>Crown margins</p> Signup and view all the answers

    What is not a factor contributing to the development of dental caries?

    <p>Frequency of brushing teeth</p> Signup and view all the answers

    What is the primary source of carbohydrates, peptides, and amino acids for microbial growth in the oral cavity?

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

    What is a Stephan curve used to measure in dental plaque?

    <p>pH fluctuations after a rinse with sucrose</p> Signup and view all the answers

    Which location is classified as the primary development location of a carious lesion?

    <p>Cervical enamel surface</p> Signup and view all the answers

    What is the result of the cumulative pH fluctuations over months or years when the enamel becomes sufficiently porous to be seen in the clinic?

    <p>White spot lesion</p> Signup and view all the answers

    What metabolic events result in continuous, minute pH fluctuations in the oral cavity?

    <p>Metabolism of salivary proteins and glycoproteins</p> Signup and view all the answers

    What is the anatomical site where an occlusal fissure serves as an example of a niche for microorganisms in the oral cavity?

    <p>Pit &amp; Fissure</p> Signup and view all the answers

    Under physiological conditions (pH 7.4), saliva and oral fluids are super-saturated with respect to which minerals?

    <p>Hydroxyapatite and fluorapatite</p> Signup and view all the answers

    What is the characteristic feature of surfaces frequently covered by biofilm, such as a cervical enamel surface?

    <p>Gradual accumulation of fluoride</p> Signup and view all the answers

    What is characterized as a state of dynamic equilibrium with its surrounding environment according to the text?

    <p>Cervical enamel surface</p> Signup and view all the answers

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