| 摘要 |
The present invention relates to dentifrice and its method of manufacture whereby the dentifrice containing tannic acid efficacious for the prevention of outbreak of tooth decay, pyorrhea and gingivitis can be obtained by means by adding what is obtainable through adding tannic acid to hot water whereto glycerine is added after it has become cooled down to the materials for the dentifrice and mixing them together.
|
