Tooth brushing at school
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Tooth brushing at school
Tooth brushing at school
Report on an experiment at Vésinet, conducted by Professor Veld, aimed at proving the action of fluorine on caries. Comment on pictures of boys receiving their toothbrushes and then learning to brush their teeth properly.
00
min
32
sec
File : History of hygiene
Publication date : 22 March 1961
Reference:
I20099952
Credits:
Producteur: Les Actualités Françaises -
Origin:
Les Actualités Françaises - Producteur: Les Actualités Françaises
Licence:
Turnkey
Reference:I20099952
Licence:
Turnkey