Hi Sir. I was wondering if teeth are supposed to be light yellow in color. If so, how frequently should we get polishing and scaling done?

Ans: Hi
If you brush and floss your teeth well - preferably after every meal - you may never need to get your teeth cleaned by a dentist.
However a visit to your dentist once every six months for a routine check up is advisable.

Ans: Hello
Your dentist, after a clinical examination, will tell you why your teeth are discolored. It's possible that there are accumulated stains and/or tartar. If that's the case, a simple procedure called Scaling and polishing (cleaning) will restore your teeth to whiteness. If your teeth have always been yellowish - if they're naturally yellowish - they cannot be whitened by cleaning alone. You may need to get your teeth bleached.
Please go by your dentist's advice.

Ans: Hello,
First of all your dentist will have to determine the cause of the discolouration after a careful examination. Only then can he advise you how it can be corrected. You may have to get your teeth cleaned (Scaling and polishing) by your dentist. In some cases, bleaching may be necessary. Do consult your dentist.

Ans: Hello
Only a few of us are lucky enough to be born with pearly white teeth. The rest of us have to make do with teeth which have a naturally creamish, greyish or brownish tinge of varying degree. I am, of course, not referring to those who choose to have poor oral hygiene or are addicted to smoking or chewing tobacco.
I'm afraid brushing well - or even brushing obsessively - is not going to make your teeth any whiter. On the contrary, brushing excessively or brushing hard can make your teeth look even more discoloured by unintentionally wearing away the enamel (the hard, outermost and whitest of the tooth's layers)
Over-the-counter whitening products are essentially mild versions of chemical bleaching agents (intentionally kept mild because such products are used unsupervised) which have limited effect or may take a long time to show results.
Your dentist, on the other hand, can bleach your teeth using suitable agents of stronger concentration which will show quicker and more visible effect.
In some cases, where the discoloration cannot be corrected by bleaching, you may need to have veneers made for your front teeth which will 'hide' the discoloration.
Please consult your dentist to know your best option.