How Do I Choose the Right Shade of White for my Teeth?

Opinions of white and not white enough vary from person to person, as does the effectiveness of bleaching products. Some people simply don't get much change in color from bleaching.
When I have done smile makeovers for models or pageant contestants, it almost seems as if there is no such thing as too white. With the bright lights shining and camera lenses doing what they do, the smiles that look natural in daily life don't look as nice.
Usually, this level of white cannot be achieved by bleaching products and are actually porcelain veneers. All whitening of natural teeth is temporary, so if a result was too white, if given enough time the smile would rebound to something more normal. Having said that, I have never bleached a smile and had someone complain that it was too white.
If you are a person that is modeling or on a stage of any kind, very white teeth may be good for you. MOST people are not, so a less white, softer coloring would be more natural. For some people, the bright, unnatural look is what they want.
A lot of the natural appearance of veneers is from the dentist using a talented lab. Natural teeth are more than one color, a blend of yellows and whites. Even veneers that are unnaturally white, when blended by a talented ceramist, can look very natural. When you see a monochromatic chicklet smile, you can bet that it was not done by a highly skilled ceramist.

Honestly, there is no right or wrong answer with regards to how white your bleach your teeth.  More importantly, how white do you want them?

How much of your teeth show when you smile?  What color is your skin?  If a female, do you wear lipstick, and if so, how dark or light?

The good news with tray bleaching is that progresses slowly, usually getting your teeth a little whiter each time you do it.  And then after you are done you might see a slight loss in the whiteness over a two week period where the color of the teeth bleaching is being normalized.

So, my suggestion is keep bleaching until you think your teeth a just slightly whiter than you like, and then stop the bleaching for two weeks.  If after the two weeks, you change your mind and still want them whiter, than add another week of bleaching.

There are some older concepts than dentists used to use before cosmetic dentistry became so popular.  The theory that the teeth should match the eyes no longer holds much weight with cosmetic dentists.  The sclera (white part of the eye) gets darker with age and nowadays, most people want to look younger.  The second theory that has fallen into much disfavor, especially among the lay public, is that if your are having crowns, veneers or bonding, the older you are, the darker the dentist makes the restorations.  Again, almost universally patients want younger (whiter) looking teeth!

The best look will be the one that looks most natural.  Take your age and skin tone into consideration.  The general rule of thumb is that teeth should not be whiter than the whites of your eyes.  Remember that the goal of esthetic dentistry is to mimic nature.  Best- Dr. Elizabeth Jahanian.