Motorised toothbrush heads. Electric toothbrushes have a motor that vibrates the toothbrush's head. A toothpaste tube is seen at far right. Regular brushing helps to prevent tooth decay | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Knapton, Chris |
Taille de l’image : | 3959 px × 2901 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |