Tandkräm

Källor

http://svensktuppfinnaremuseum.se/fluor/

https://www.tandlakartidningen.se/wp-content/uploads/2013/11/Tottie.pdf

https://kemisamfundet.se/wp-content/uploads/2020/05/2019_03_D%C3%A5_b%C3%B6rjade_vi_att_bortsta_med_fluor_Yngve_Ericsson.pdf

https://www.brilliantsmile.se/smile-bloggen/vem-uppfann-tandkramen

https://www.houstonspediatricdentist.com/blog/from-eggshells-to-nasa-the-fascinating-history-of-toothpaste/

https://www.houstonspediatricdentist.com/blog/from-eggshells-to-nasa-the-fascinating-history-of-toothpaste/

https://www.lookandlearn.com/history-images/YW059577L/Ceramic-pot-for-Oriental-toothpaste-England-1870-1910

https://www.speareducation.com/spear-review/2012/11/a-brief-history-of-toothpaste

https://youtu.be/vcF5QacG8qA

https://www.esa.int/kids/en/learn/Life_in_Space/Living_in_space/How_do_astronauts_brush_their_teeth_in_space

Nyckelord: tandkräm, hygien, hälsa, emalj, fluor, ryden, rymdforskning, kemi, omgivningslära, film, video, teknik, uppfinning, innovation.

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