Dean's Fluorosis Index scoring 2 indicates?

• A. Mild = white opacities affecting <50%
• B. Very mild = white flecks or spots
• C. Severe = brown stains
• D. Moderate = all tooth surfaces show white areas

Answer: (A)

Dean's Fluorosis Index describes enamel changes from fluorosis by the extent of white opacities on the tooth surface. A score of two corresponds to a mild level, where white opacities are present and involve less than half of the tooth surface. This sits between tiny flecks seen in very mild and more extensive involvement that would be labeled moderate or severe. In practice, very mild shows just flecks or spots, moderate involves larger areas or more than half the surface, and severe includes brown stains or more dramatic surface breakdown. So, white opacities covering less than half of the surface best matches the score two.