Invisalign can be used at night, but you shouldn’t wear them exclusively. This will increase the treatment time and could cause you to not get the results you want. Invisalign uses gradual force to move your teeth into the right position. To build this gradual force, it is best to wear your aligners during the day. If you wear your aligners at night, it is important to keep them clean and replace them regularly. This will ensure that your treatment time is on track.
Invisalign works on the same principle that braces: gentle, continuous force on teeth. The timing of the force is what makes the difference. At the beginning of your treatment, Dr. Richard Chan will design a series of aligners for you. These aligners are then printed for you according to his specifications. Invisalign aligners should be worn 20 hours per day. This will cut down your treatment time by four hours a day.
You can also ask your orthodontist about extending the time you wear your aligners. Even though this may seem counterproductive, your dentist will be aware of the fact that you might not be able to wear your aligners for the recommended 22 hours per day. If you need to wear your aligners at night, you can do this under the supervision of your orthodontist. This is not recommended.
The nighttime clear aligners may slow down the movement of your teeth. Because they are custom made, nighttime wearers will not create the same amount of force as those worn during the day. It may take up to four months to get your teeth in the right position. This is fine if you wear them at night and sleep in the day. If you wear your aligners during daytime, it is important to ensure that they are in place at night.