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MOTORISED TOOTHBRUSH HEADS
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. (KEYSTONE/SCIENCE PHOTO LIBRARY/CHRIS KNAPTON)
Instruktionen
COPYRIGHTPFLICHTIG
Lizenz
Rights Managed
Erstellungsdatum
20020702
Ort
Credit
KEYSTONE
Source
SCIENCE PHOTO LIBRARY SPL
Byline
CHRIS KNAPTON
Grösse
3959 x 2901 px
Dateityp
JPEG