Tooth Whitening


This is the process of removing stains from inside the teeth that have accumulated over time. The agent used is Carbamide peroxide or hydrogen peroxide that comes in varying concentrations depending on the case. A careful analysis should be done by the dentist for optimum results.

Types of stains

Extrinsic- cause is due to outside factors like consumption of staining substances such as coffee, tea, wine,colas, tobacco, etc over a period of time

These factors are more responsive to whitening.

1  Intrinsic- these are internal and are more resistant to bleaching.

2  drug stains

3  certain antibiotics like tetracycline

4  excessive flouride

Whitening protocol

1 Home Bleaching Kit

This is done by the patient following instructions given by the dentist to dispense bleaching gel into customized trays that fit the patient's teeth. Follow-up required to check on shade improvement.

2 Chair-side bleaching

As a stronger bleaching gel is used, the process is done at the chair with full supervision to ensure optimum results. Teeth and gums are well isolated, gel is dispensed and activated under special light. Usually, the result is immediate but may vary in degree of whitening effect.

Post whitening

The patient should moderate on the consumption of colored beverages or at least rinse off with water. A home bleaching routine can be embarked after sometime to prevent shade reversal. A whitening toothpaste also helps to maintain the color of the teeth.

Effects of Bleaching

Some sensitivity may occur and this can be managed using desensitizing gel or patients have to stop the protocol if unbearable and inform the dentist.

Before whitening, any exposed roots should be filled if abraded or protected during the bleaching procedure to minimize sensitivity.