A kind of toothbrush head design for power driven sonic toothbrush, with a body of Solid of Revolution, which could help to reduce or even avoid the rotary vibrating brush heads impact on teeth or gum during using the power driven sonic toothbrush, make daily teeth cleaning process better user experience and more safe.
#$%^&*AU2018101522A420181115.pdf#####Abstract The innovation provides a toothbrush head design, which including a rod portion, a head portion and bristles, and most of the toothbrush head include the rod portion and the head portion was designed as a solid of revolution except the installation area for bristles. The whole toothbrush head will rotary vibrate around the center axis of the revolution surface during working, and then drives the bristles to brush the teeth for cleaning. During the rotary vibration, the distance between the toothbrush head surface and the teeth will keep unchanged due to the solid of revolution design, it will help to reduce or even avoid impact on the teeth during cleaning the teeth. The innovation also provides a power driven toothbrush with such a toothbrush head design, which could help to prevent impact on the teeth during teeth cleaning, help to make teeth brushing more comfortable and reduce potential health risk due to long-term high-frequency impact on teeth which was occurred very often with current existing power driven sonic toothbrush.4 213 FLG.4 A
