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Exam questionKROK 1Dentistry ยท 2020

During examination of the patients, a dentist noted that many of them have dull, non-glossy enamel with porcelain- like and pigmented spots. Some patients have single or multiple enamel defects that manifest as colorless or pigmented erosions. These changes in the teeth developed in the result of the excessive intake of a certain substance by the organism. Name this substance:

Answer options

  1. Sodium
  2. Potassium
  3. Magnesium
  4. Fluorine
  5. Calcium
Correct answer

Fluorine

Explanation

Good Status;In moderate amounts: Flurine forms fluorapatite which prevent tooth decay and cavitation of the tooth.Bad Status;In excess amount: Cause tooth defects. Normal ranges: Maximum of 1.5 mg per liter of water

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