| 摘要 |
Pre-shaped, non-custom dental trays are either preloaded with bleaching gel or filled with a dental treatment composition just prior to placement over a person's teeth. The pre-shaped dental tray is thin and flexible, which allows it to be placed over a person's teeth and then approximately conform to the person's teeth. The pre-shaped, non-custom dental trays can therefore perform similar to a customized tray but without have to go through the more lengthy customization procedure. A pre-shaped dental tray can be pre-loaded with a dental treatment composition and stored within a sealed packaging container.
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