Despite polishing and scaling, my teeth are still yellow, and also I have gaps. Can tooth whitening fix this?

Q. Would tooth whitening reverse yellowish teeth back to normal?

Answered by
Dr. V. N. Narendran
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Jan 14, 2023

Hi doctor,

My teeth are still yellow after scaling and polishing, and my dentist told me that it is the natural color of my teeth. My lower teeth are yellower from the back, and the rest of my teeth have a light shade of yellow. My dentist says that if he polishes them again, a layer will be rubbed off my teeth, and I will suffer later. I have also noticed that there is a very thin gap between two of my lower teeth and feel like something is there between them. Is calculus still left there, or is it just my teeth that have been left behind after scaling? My dentist also told me that toothpaste does not matter and that my teeth can never be whiter than this. He said that using products to make teeth whiter is a bad option that has consequences. Is it possible to make my teeth whiter (using teeth whitening strips, drops, or activated charcoal), or is my dentist right? And does calculus spread by itself, or does it spread with more plaque forming and then turning into calculus (the repetition of the cycle)? Will brushing my teeth twice a day regularly improve them? My dentist also told me that I should only floss after 25.

Please answer my questions in detail.



Welcome to

Light yellow color is normal. It also depends upon the mineralization of the dentin, environmental factors, etc. Usually, you will see a slight gap between teeth after scaling. This is because the irritation of the calculus causes the gum to recede. So after scaling, you will see a slight triangular gap between the teeth.

  • Brush twice daily as the calculus is formed by the hardening of the plaque, especially brush before bed; as the salivation is less during sleep, the plaque gets hardened easily.
  • Using tooth whitening paste gives some effectiveness. But prolonged use is not recommended.
  • Tooth whitening procedures are available in the office and at home, where dentists provide tooth whitening gels that can lighten the shade of the tooth. But it can reverse after a year or so. Repeated tooth whitening is not advisable.

Lastly, you consulted a good dentist. Follow his advice.

Thank you.

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