Plastic braces will tighten after taking them off for a while. Are they deformed? Does it matter how many hours I often pick a day? I've been carrying it for a year.
Because plastic (invisible) braces correct teeth according to the elasticity of plastic, there is a natural deformation when they are taken off and not worn. This deformation will give the teeth a force to correct their teeth and achieve the effect of correction. Under normal circumstances, it is recommended not to wear too short, otherwise it will not play a therapeutic role. I wish you a happy life.