It happens every day and usually more than once: When a person wishes to signify greetings, gratitude, admiration, or otherwise good or chill vibes, they peel back their lips and reveal two rows of about 32 mineral-coated nerve fibers, embedded in pink tissue, coated with threads of saliva. Made up mostly of hydroxyapatite, a relatively weak gemstone, teeth begin to rise from gummy ridges inside the mouth when a baby is around six months old. Those teeth hang on until about the first grade, when they start getting replaced by larger, forever teeth. In various cultures, baby teeth are alternately buried, thrown, or exchanged by spirits for money, and the incoming teeth herald a child’s arrival at perhaps the weirdest time in young life.
Things just get more challenging from…
