They do not realize that there could hardly be a worse blot on one's appearance than dirty or decaying teeth, or the absence of one or two in front.

Nothing can be more offensive in man or woman than a foul breath, and no one can have neglected teeth without reaping this consequence.

We all know how disagreeable it is to be anywhere near a person whose breath is bad.
It is positively disgusting.

No employer wants a clerk, or stenographer, or other employee about him who contaminates the atmosphere.

Nor does he, if he is at all particular, want one whose appearance is marred by a lack of one or two front teeth.