https://en.wikipedia.org/wiki/Dentin#/media/File:Blausen_0863_ToothAnatomy_02.png Day 92 has 36 protein-coding genes (browser view) including DSPP, encoding the most acidic human protein, dentin sialophosphoprotein.
DSPP is cleaved to create two proteins that are the main components of dentin in teeth. Interestingly, mutations are associated with some forms of deafness.
Click here to see all 8646117 letters of Day 92 with DSPP underlined.