Should the handle and bristle of atoothbrush should be made of same material?
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No, the handle and bristle of a toothbrush should not be made of the same material.
The handle of the toothbrush should be hard and strong while the bristle should be soft and flexible.
The bristles are made up of nylon fibres which are strong, elastic, lustrous, lightweight and easy to handle.
The handle is made of hard plastic as it is strong, durable, poor conductor of heat and electricity.
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