Mom's Mould Guide for Trubyte Teeth

One of the more interesting items that came from my mother's estate is this box of stained human teeth embedded in tar colored paste.

According to the box titled "Mould Guide for Trubyte Teeth," these were manufactured by the Dentists' Supply Company in New York. 

The section on the right resembles orderly rows of tooth soldiers. It would make an oddly artful wall decoration and in fact, daughter Izzi grabbed it just for that purpose.

The section on the left is disturbing.

The top half started out orderly but then something went terribly wrong. 

Had the person who placed each tooth in careful rows simply gone mad? Did the thought of handling human teeth for the rest of his days make him realize that the Dentists' Supply Company send him into a tizzy? 

The chaos starts in the lower portion of the top half then continues until the entire lower half looks like tooth confetti, clearly indicating something horrible occurred.