Influence of the brushing

Did you know that the sound that the brush makes when brushing our teeth can make brushing more effective? This is the conclusion reached by a group of Japanese scientists who have discovered that the efficiency with which we clean our teeth can be related to the sound that the brush bristles make against tooth enamel when we brush.

Boredom, one of the causes that leads to not brushing teeth

As explained in his study Take Hashish and Hiroyuki Kajimoto of the University of Electro-Communications, brushing is something basic to maintain good oral health but many people do not carry out this important action because it bores them. They only remember its importance when they discover that their teeth are affected by some oral pathology. In addition, in many cases that same boredom causes the “quality” of brushing to be worse. The scientists tried to find a formula that would improve the effectiveness of cleaning and, in addition, its frequency.

In their experiment they placed a small microphone on a toothbrush so that they could record the sound of the bristles on contact with the enamel. This sound was reproduced through headphones in a group of volunteers while brushing. The scientists also manipulated the frequency and intensity of the sound to see the effect it had on those volunteers.

And the effect, as we have anticipated, was surprising since the volunteers who had brushed their teeth listening to that sound felt that the comfort and quality of brushing had improved. That is, they had the perception that they had been more comfortable cleaning their teeth and that they were also cleaner.

Motivate users interactively

This brush prototype incorporates headphones which, applied to daily brushing in real life, could be very uncomfortable and impractical. The prototype could evolve in its design and incorporate bone conduction speakers, which function as a kind of vibrating loudspeaker. These are used, for example, in pillows that allow you to listen to music or the radio while you sleep without the need for headphones.

In the “brush 2.0”, this speaker would allow to reproduce the amplified sound of the brushing, which would be amplified in the mouth. The sound would vary its frequency to improve user satisfaction before brushing.