Good afternoon,
My advice would be that you should initially undergo full mouth cleaning and polishing which we term as Scaling. A thorough treatment will help you to get rid of your plaque, calculus and stains.
For the yellowness of your teeth, I would recommend a session of Teeth Whitening after the Scaling is done.
Hope this helps.
Dr.Sanket Brahmbhatt
M D S Periodontist and Implantologist
Next Steps
Visit a dentist on Priority basis