The “Secret” Dentists Don’t Tell You: A Natural Way People Use to Remove Tartar and Whiten Teeth

Why Eggshell Powder Became a Viral Teeth-Whitening Trick

Eggshells are made of calcium carbonate, the same mineral found in some natural toothpastes. They also contain trace minerals like magnesium and phosphorus, which support enamel strength. Because of this, some people use finely ground eggshell powder as a mild abrasive to help:

  • Reduce surface stains

  • Polish the teeth

  • Support enamel remineralization

  • Mildly scrub away plaque buildup

This gentle abrasive effect is similar to what you find in baking soda–based natural toothpaste formulas.

Here’s how this DIY remedy is typically prepared at home:

1. Clean the eggshells thoroughly

Remove the membranes and rinse the shells to eliminate any residue.

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