PURPOSE: Complex bristles of toothbrush are provided to prevent the generation of inflammation or the hemorrhage in the user's mouth due to the less stimulus property of the complex bristles.;CONSTITUTION: Complex bristles of toothbrush include: general bristles; silicone bristles which are planted in the general bristles by mixing with the general bristles; and rubber bristles which are planted in the general bristles by mixing with the general bristles. When a user brushes his/her teeth, then the soft feeling can be felt.;COPYRIGHT KIPO 2010
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