Top: an Aquafresh Toothpaste ad by Grey Worldwide Belgium from 2003; 2nd row, left: handcrafted pom-pom with bent bottle cap mouth (from: Say It Ain’t So); on right: bottle cap inventor, William Painter’s 1892 patent drawings; bottom row, left: vintage false teeth bottle opener ($6 on Etsy); an Instagram photo by Gregory Pastore
Keywords for beverage packaging and dental procedures collide.. intersect… overlap…
The crown cork was patented by William Painter (inventor) on February 2, 1892 (U.S. Patent 468,258). It had 24 teeth and a cork seal with a paper backing to prevent contact between the contents and the metal cap. The current version has 21 teeth. To open these bottles, a bottle opener is generally used.
from Wikipedia’s entry on bottle cap
Bottle caps have teeth in the same way the gears have teeth, but some have made bottle caps into representations of teeth.
And although bottle openers are “generally” used, opening a bottle with ones teeth is an alternative method that some beverage consumers have been known to resort to. This caprice may seem tough and improvisational at the time, but occasionally results in broken teeth.
The dental remedy for a broken tooth? Another kind of cap, also called “crown.”