· Sergei Firsov
· Oral care
How to Brush Teeth With an Electric Toothbrush
A short step-by-step guide on dealing with layer one and two of leftovers on the teeth without hassle.
Oral care
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· Sergei Firsov · Oral careHow to Brush Teeth With a Manual Toothbrush
A short step-by-step guide on dealing with layer one and two of leftovers on the teeth.
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· Sergei Firsov · Oral careWhy Brush Teeth?
What substances linger on our teeth and why not just let them be.