A child learns the correct brushing method using a human ora... editorial photos & news images

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A child learns the correct brushing method using a human oral model at the Zaozhuang Science and Technology Museum in Zaozhuang City, Shando...
National Science and Technology Week · Zaozhuang, China © Costfoto/NurPhoto
A child learns the correct brushing method using a human oral model at the Zaozhuang Science and Technology Museum in Zaozhuang City, Shando...
National Science and Technology Week · Zaozhuang, China © Costfoto/NurPhoto
A child learns the correct brushing method using a human oral model at the Zaozhuang Science and Technology Museum in Zaozhuang City, Shando...
National Science and Technology Week · Zaozhuang, China © Costfoto/NurPhoto