Two of the most popular ways to brighten yellow and discolored teeth are tooth whitening strips or whitening trays.

The strips are made of paper thin flexible plastic (polyethylene) and coated with a bleaching agent (hydrogen peroxide) on one side.

How Long Do Strips vs. Custom Bleaching Trays Take

Typically the length of time whitening strips are used will depend on the concentration and number provided. Using 28-56 strips treatment can last anywhere from 7-14 days.

For example, at 10% concentration of peroxide treatment extends over a 7 day period using 28 strips. Half of these will be used on lower teeth and the rest on uppers.

At 6% concentration the length of treatment would extend over a 14 day period with a total of 56 strips in all.

Each treatment last for about 30 minutes and for this reason some have found dental strips more convenient and less cumbersome when compared to bleaching trays.

Others have found difficulty in preventing the strips from coming off.

Another alternative would be quick dissolving whitening strips that melt in your mouth after about 15 minutes cutting waiting time in half.

Custom Bleaching Trays

Trays resemble a mouth guard. A small amount of gel is place into each impression. How long do you bleach? This depends on the strength of the solution. The bleaching gel

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