| 摘要 |
This invention provides a toothbrush comprising: a.) a support member of the handle type; b.) at least one brushing member mounted to rotate on said support member about an axis of rotation (X-X′), and having side surface that extends along the axis of rotation between a proximal end facing towards the support member, and an opposite, distal end, and that is designed to be brought into contact with the teeth for the purpose of cleaning them; and c.) a physiological retractor covering said side surface in part so as to protect the mucous membranes adjacent to the teeth from the mechanical action of the brushing member; Said toothbrush being characterized in that, facing the side surface of the brushing member, the physiological retractor has a retraction portion.
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