Dental Lesions and Abrasion

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Questions and Answers

What type of stresses does the cervical part of the tooth undergo at centric occlusion?

  • Torsional stresses
  • Tensile stresses
  • Compressive stresses (correct)
  • Shear stresses

What is the shape of the lesion that occurs due to faulty occlusion?

  • Triangular
  • Circular
  • Wedge-shaped (correct)
  • Rectangular

Which teeth are most affected by faulty occlusion?

  • Canines
  • Molars
  • Incisors
  • Premolars (correct)

What is the cause of a developmental defect in enamel due to improper enamel matrix formation?

<p>Injury to ameloblasts during enamel formation (A)</p> Signup and view all the answers

What is the characteristic appearance of teeth affected by excessive fluoride exposure?

<p>Mottled enamel (D)</p> Signup and view all the answers

At what age is a child most susceptible to excessive fluoride exposure?

<p>From birth to 6 years old (D)</p> Signup and view all the answers

What is the appearance of teeth affected by hypomineralization?

<p>Chalky white or opaque (B)</p> Signup and view all the answers

What is the term for the wear of teeth at sites of direct contact between teeth in occlusal function and parafunctional activities?

<p>Attrition (B)</p> Signup and view all the answers

What is the characteristic of teeth brush abrasion?

<p>It is characterized by being iatrogenic (C)</p> Signup and view all the answers

What is the term for the dissolution of teeth by acids that are not bacterial in origin?

<p>Erosion (B)</p> Signup and view all the answers

What is the cause of smooth lesions on the labial surface of teeth?

<p>Exogenous acids (D)</p> Signup and view all the answers

What is the term for the pathologic surface loss of teeth resulted from direct frictional forces between teeth and external objects?

<p>Abrasion (B)</p> Signup and view all the answers

What is the result of excessive use of toothpicks?

<p>Proximal abrasion (A)</p> Signup and view all the answers

What is the characteristic of lesions caused by exogenous acids?

<p>They are smooth, wide, and shiny (B)</p> Signup and view all the answers

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