Is a Dog’s Mouth Cleaner Than a Human’s Mouth?

Just thinking about bacteria might make you cringe, but it’s essential for your oral health. Your mouth is home to hundreds of bacteria species, but not all are beneficial. Brushing and flossing keep bacteria growth under control, so you might think your mouth is pretty clean. However, you’ve probably heard “A dog’s mouth is cleaner than a human’s mouth.” Here are the facts behind this common expression.

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