grit someone's teeth

The Role of Dust, Grit and Phytoliths in Tooth Wear
Through gritted teeth
Grit Your Teeth for Bennett's Parting Shot.
BioOne Online Journals - Annales Zoologici Fennici - 51(1-2):143 - Full Text
Argentines grit teeth at call to boycott steak
Dembele's Ready to Grit His Teeth and Help Spurs in Final Push
GW Stuns Temple on The Road; Colonials Grit Teeth, Rally to 69-62 Win
Even Ben Hur Would Grit His Teeth in Rome's Traffic ROADS TO NOWHERE
Dear Abby: ; Co-workers grit their teeth at dentist's sagging pants
The role of dust, grit and phytoliths in tooth wear