(CNN)-- Remember that old adage, "You can never be too thin or too rich"? You can add to that list: too white -- your teeth, that is. We are a nation seemingly obsessed with the pursuit of that ...

Mattie was targeted by some trolls who commented on the colour of her teeth. One wrote: "Too white but the shape is great! I’ll never understand why people go so far on the whiteness though." ...

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“If it would stain my white coat, it can stain your teeth ... (with flexibility to skip days along the way if your teeth start to feel too sensitive). As for what product she recommends?

Tooth sensitivity is discomfort in one or more teeth that is triggered by hot, cold, sweet or sour foods, or drinks, or cold air. Bad breath is often caused by bacteria in your mouth that gives ...

To whiten teeth, it's most important to brush and floss ... Association seal to ensure it is tested to be effective and not too abrasive. "These toothpastes help maintain a white smile but often ...