歯は塩じお

noun

dental calculus; tartar

Rare term for dental calculus; the standard medical and everyday word is 歯石 (しせき). This term may appear in older or specialized texts.

See also: 歯石

• 歯は塩じおは、歯し石せきの古ふるい呼よび方かたの一ひとつです。

  歯塩 is an old term for dental calculus.