| 摘要 |
<p>Disclosed herein is a toothbrush, which has an interdental brush that is removably coupled to a toothbrush handle, thus solving conventional problems in that an interdental brush must be separately stored after being used, and is thus unsanitary. In the present invention, the interdental brush (5) is inserted into and stored in a cylindrical casing, which has a length of 1/3 of the overall length of the toothbrush. Threaded parts are provided on opposite ends of the cylindrical casings, so that a toothbrush main body (1), the cylindrical casing and the interdental brush (5) are removably coupled to each other. Furthermore, the interdental brush (5) is easily replaceable with a new one. As well, a cross hole (10) is formed through a sidewall of the cylindrical casing to ensure superior ventilation, thus preventing the interdental brush (5) from becoming humid, thereby being sanitary.</p> |
