Hi sir
There is no specific home remedies to whiten your teeth...
you need to undergo cleaning(scaling and polishing) which removes extrinsic stains followed by tooth whitening(teeth bleaching)which removes intrinsic stains ...
Next Steps
kindly viait dentist for furthur consultation and management
Health Tips
HELPFUL TIPS:
Do brushing and flossing twice daily
Do rinsing woth mouth wash twice daily
Do clenaing(scaling) for every 6 months