The spot should fade on its own in a few days as it most likely is from the cheek bite.
Incase you develop pain/swelling definitely show it to a dentist soon, they will be able to evaluate further.
If the cusps on your teeth are too sharp they may be rounded/polished to stop the constant friction against your cheek.
- Dr Renisa Shah
Laser Smile Care Centre (Andheri, Mumbai)
Next Steps
Avoid extremely spicy/hot things to prevent irritation to the area.
Health Tips
Rinse with salt water 2-3 times a day for improved healing.