Set your teeth
Set one's teeth, Chinese idiom, Pinyin is y ǎ OD ì ngy á g ē n, which means to endure pain and stick to the end, or unswervingly. From the water margin by Shi Naian of Ming Dynasty.
The origin of Idioms
The sixty sixth chapter of Water Margin written by Shi Naian of Ming Dynasty: "Li Kui peeled off all his body, gritted his teeth, and killed from Chenghao with two axes."
Idiom usage
All the businessmen are fools. They refuse to accept his words. A brief history of civilization by Li Baojia in Qing Dynasty
Set your teeth
All water and all mountains are poor - shuǐ jìn shān qióng