The answer is simple Protein Synthesis
10 minutes of brushing, two or three times a day with an abrasive substance like toothpaste will strip away the surface of your teeth. If you use a hard-bristled toothbrush, the effect will be even more severe.
A person's fingerprints<span> are formed when they are a tiny developing baby in their mother's womb. Pressure on the fingers from the baby touching, and their surroundings create what are called "friction ridges", the faint lines you see on your fingers and toes.</span>