Aligners are like mouth guards and fit tightly around your teeth. Each aligner only makes a slight adjustment and every 6 to 8 weeks, a new aligner is given, continuing the process of making slight adjustments until your teeth are properly aligned.
The process is carefully planned, with each aligner only a specific set of teeth are adjusted, ensuring that only certain teeth can move. They are worn for about 22 hours per day.
The goal of Invisalign aligners is to move your teeth without causing any pain, although temporary discomfort can occur after each new stage of treatment. This is normal and to be expected.
It can take several days to become accustomed to the aligners and any pain is due to the pressure pushing your teeth into alignment. Minor discomfort is a sign that the aligners are working as they push the teeth in a specific direction.