National Dental Examining Board of Canada (NDEB) Practice Exam

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Which are important clinical signs of gingivitis?

  1. BOP and enamel hypoplasia

  2. BOP and fluorosis

  3. BOP and cyanosis of tissue

  4. Cyanosis of tissue and dentinogenesis imperfecta

The correct answer is: BOP and cyanosis of tissue

Clinical signs of gingivitis include bleeding on probing (BOP) and cyanosis of tissue. BOP is an early sign of gum disease and indicates inflammation of the gums. Fluorosis and enamel hypoplasia are conditions that involve defects in tooth enamel and are unrelated to gingivitis. Cyanosis of tissue refers to bluish discoloration of the gums, which can be caused by reduced blood flow as a result of inflammation from gingivitis. Dentinogenesis imperfecta is a rare genetic disorder affecting tooth development and is not a sign of gingivitis.

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