Introduction

Toothpaste. Toothpaste seems to improve every day. We have anti-cavity toothpastes, extra-whitening toothpastes, toothpastes with mouthwash, toothpastes for sensitive teeth, toothpastes with stripes, clear toothpaste, even liver flavored toothpaste for dogs. A modern toothpaste has many things to do. It must have abrasives to scour off ... ................
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