It has always been believed that eating chocolate represented a danger to dental health, but an investigation in Japan denies it.
According to Takashi Toshiba, from the University of Osaka, chocolate can even protect the teeth. The decay occurs when the bacterium Streptococcus mutants produces a viscous molecule, glycan, which facilitates its anchorage in the tooth.
This and another bacterium convert the sugars into acids, which pierce the cavities on the surface of the tooth.
Japanese scientist says that part of the seed of the cacao has a bactericide that compensates the high levels of sugar chocolate, and prevents the formation of the viscous molecule.
In the pod of the cocoa seed, which is often discarded, there is still more of this bactericide, so it could be used as a component of toothpaste.
However, dentists believe that to avoid dental plaque it is better to observe proper hygiene than to get chocolate.