Hello,
Yellowing of teeth could be due to many reasons. Please attach some pictures of the effected tooth.
Next Steps
(-) Please visit a dentist or video consult
(-) Brush twice a day
(-) Maintaine good oral hygiene
(-) Use mouthwash
(-) You can use dental floss also
Health Tips
By visualising through pictures or video consultation, diagnosis becomes more easy.
Stay safe n healthy