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What causes "tartar plaque"? Can you not scrape off tartar?

What causes “tartar plaque”? Can you not scrape off tartar?

Question: How does tooth stain or tartar occur? Answer: Tartar or salivary stone is a plaque that hardens because calcium from saliva precipitates it. Plaque or Bacterial plaque is a soft, cloudy white stain that contains germs. stuck on the tooth Even if you rinse with water, it won’t