Acquired Defects and Tooth Discoloration Quiz

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Questions and Answers

What causes yellow-green discoloration in teeth due to deposition of bile pigments in the calcifying dental hard tissues?

  • Dental caries
  • Gingival recession
  • Amelogenesis imperfecta
  • Congenital hyperbilirubinemia (correct)

Which hereditary condition is characterized by enamel formation disturbance resulting in various subtypes, including 'snow-capped' enamel and thin, hard enamel with a yellow to yellow-brown appearance?

  • Gingival recession
  • Amelogenesis imperfecta (correct)
  • Restorative materials
  • Dental caries

What type of disorder affects dentition during formation due to metabolic factors, unlike inherited disorders that may only involve hard tissue forming at that time?

  • Amelogenesis imperfecta
  • Congenital hyperbilirubinemia (correct)
  • Tooth wear
  • Restorative materials

Which disorder is characterized by varying degrees of expressivity and inheritance as autosomal dominant or x-linked trait, leading to enamel abnormalities ranging from mild hypo mature 'snow-capped' enamel to severe hereditary hypoplasia with yellow to yellow-brown enamel?

<p>Amelogenesis imperfecta (C)</p> Signup and view all the answers

Which type of discoloration occurs following a change in the structural composition or thickness of dental hard tissues?

<p>Intrinsic discoloration (C)</p> Signup and view all the answers

Which condition is known to affect the developing dentition and cause discoloration as a consequence?

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

Which genetic disorder affects enamel formation and can cause discoloration of teeth?

<p>Amelogenesis imperfecta (A)</p> Signup and view all the answers

Which systemic syndrome is associated with the term 'congenital hyperbilirubinemia'?

<p>Jaundice syndrome (A)</p> Signup and view all the answers

What is the most common localized cause of enamel hypoplasia?

<p>Trauma or infection in primary dentition (D)</p> Signup and view all the answers

What is the post-eruptive discoloration caused by?

<p>Internalization of extrinsic stain into porous enamel (D)</p> Signup and view all the answers

Which condition is often confused with fluorosis, but is actually related to enamel hypoplasia?

<p>Enamel hypoplasia from trauma or infection (C)</p> Signup and view all the answers

In what concentrations does fluoride cause fluorosis?

<p>Greater than 1 ppm in drinking water (D)</p> Signup and view all the answers

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