When Should I See Results with Professional Tray Teeth Whitening?

Some teeth are more difficult than others to whiten. That being said ,6% gel is not very powerful for an initial bleaching. Be sure to follow all instructions as well such as no coffee or other staining foods during active bleaching. My advice if you complete your at home system and are not satisfied, is to bleach in office with a light and more intense whitening product.

There are several factors that influence teeth whitening results:

1) Starting condition and color of teeth:  Teeth that start with a fairly 'grey' shade or have heavy 'internal' staining (such as tetracycline stains) are considerably more difficult to treat successfully and will take more specialized treatment and longer treatment time.  

2) Concentration of solution:   The higher the concentration, the quicker the results.  Although you risk having more sensitivity with the higher concentrations.    If you have not had a problems with sensitivity, you can switch to higher concentration, but make sure you stop immediately and contact your dentist if you should start feeling sensitivity.

3) The type of teeth staining food/substances you consumer during and after your bleaching treatment:   Any substance that will stain a white shirt can stain your teeth, particularly during treatment as the teeth can more readily absorb such stains.  I recommend avoiding coffee, tea, dark fruit juices, foods containing yellow or red curry, etc. Smoking is also a no-no (during and, if possible, after treatment.)

4) Your persistence in following the recommended course (sounds like you've done a fantastic job.

5) I am assuming you don't have any existing crowns/bridges in your front teeth (those will not whiten)

Having said all this, most patients begin seeing some results 1-2 weeks after persistent use.   Your dentist should have the most experience with the specific solution that was dispensed.    Please, check with the clinic about possible options and follow-up.

Everyone is a little different when it comes to whitening. Sometimes it can take longer than expected. If you aren't having any sensitivity, consider switching to a higher concentration gel.