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Radiology · single question

A patient with bulimia nervosa shows dental erosion from frequent self-induced vomiting. Which advice should you give to minimize further enamel loss?

  1. Rinse the mouth with water or a sodium bicarbonate solution after vomiting and delay toothbrushing
  2. Brush vigorously immediately after each episode of vomiting
  3. Increase intake of acidic foods and beverages
  4. Apply lemon juice to neutralize stomach acid
Show answer and explanation

Correct answer: A. Rinse the mouth with water or a sodium bicarbonate solution after vomiting and delay toothbrushing

After acid exposure, enamel is temporarily softened; rinsing with water or a bicarbonate solution to neutralize acid and waiting before brushing protects the softened surface from abrasive loss.Other options: Brushing immediately abrades softened enamel. Increasing acidic foods worsens erosion. Lemon juice is acidic and would aggravate the problem.Key exam takeaway: After acid exposure (reflux, vomiting, acidic diet): neutralize and rinse, then wait at least 30-60 minutes before brushing.

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