Get comfortable with your Invisalign aligners, you’ll be wearing them a lot 
Wear your Invisalign aligners 22 hours a day minimum. The plastic from the aligners smooths out the roughness of the attachments so wearing your aligners as much as possible will decrease the sensitivity of the teeth. Be sure to treat tooth sensitivity as soon as it arises.
Double up on Propel use and take Advil/Tylenol as soon as tooth sensitivity arises!
Take advil or tylenol and double up on the use of your Propel tooth movement accelerator. The gentle vibrations of Propel take away the feeling of aligner pressure. If you do not have Propel, use aligner chewies for 2-3 minutes after every time you place your aligners.
Keep your teeth and aligners clean 
Plaque can cause gum inflammation which can lead to sensitivity. Brush your teeth and your aligners with your toothbrush and toothpaste.
Use a nail file to smooth down any sharp edges
Keep a clean nail file close by, and possibly a small pair of scissors. If there is a sharp edge of an aligner, use the file to smooth it down or the scissors to cut about 1 mm off of the material. This makes it less likely to irritate your cheeks.
Stock up on orthodontic wax
Orthodontic wax makes your first week so much smoother (no pun intended). Warm it up in your hand and place it over the part of the aligner that is irritating your cheek or lip: this will allow the tissue to heal faster while getting used to your new aligners.
I’m Dr. Mackenzie and I’m an Orthodontist. I serve Saint John, Quispamsis, and St Stephen New Brunswick.
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Learn more on our Invisalign and Clear Aligners page, and see our Accelerated Orthodontics page for related information.