Silicone

Silicone mouth trays are double sided, which means that you only need one mold for both your upper and lower teeth. When the mold is made, there will be silicone molding material in the tray on both sides and you bite into the silicone to make an exact replica of your teeth. Whitening solution is then placed in the tray and your teeth are evenly covered in the solution, helping you get a brighter, whiter smile that is even over your entire teeth. This type of mold is best for those without a bad gag reflex because it is a very bulky tray. It is also recommended that the solution you use be one for less than 30 minutes. There are several advantages to these, including an exact mold and the ability to remold it if needed.

Whiter Smile Mouth Trays

Whiter smile mouth trays are considered to be the very best home teeth whitening trays next to a dentist mold because there are so many advantages to using them. Whiter smile mouth trays are extremely comfortable and are made from a hard material so it is not easy to accidentally damage them, making them long-lasting. Gel leakage when using these mouth trays is rare because they are such a good mold and offer excellent dental impressions. The teeth impressions occur when the mold is held in hot water and then the teeth are pressed into the mold, and unless they are heated after that. It is also less likely that you will be a victim of a sensitivity issue with the whiter smile mouth tray.

Heat Sink/Thermoforming

In teeth whitening kits that contain trays, heat sink or thermoforming trays will more than likely be the type of tray you get. The trays used in thermoforming teeth whitening kits need to be heated with hot water so the material will be soft enough for teeth to press into it. However, one disadvantage of this type of tray is that often the molds form over themselves if the tray is heated too much and the material becomes overly soft. However, thermoforming teeth whitening trays are the cheapest kind available and are usually quite comfortable. They also have the added benefit of being clear and made from high quality polymer blends. Heat sink teeth whitening trays are very popular and commonly used for these reasons.

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