There are various ways to whiten teeth, however the least sensitive way is to do this slowly using home kits. The dentist will examine your teeth to ensure it is safe to proceed. Special dental trays are fabricated and the whitening agent is then given to you after a short explanation on how to use the system at home. The teeth will lighten in colour slowly and sensitivity is not normally an issue when this technique is used.
In house whitening systems are faster and involve applying a gel to the teeth that is activated further using a special light source. However, sensitivity is more likely to develop using this technique. Our preferred method is using the home system.
If the tooth has been root treated and has darkened, the canal, which previously contained the nerve, may be reopened and the whitening product is put in.