Clear aligners are great alternative to metal braces. Users enjoy the discrepancy of the teeth correctors without a mouth full of metal. However, while invisible aligners have minimal appearance, the discomfort of pressure is still something users will deal with.
Even though the pain is mild, it does not sound too fun. Although, keep in mind that these feelings of pressure provide assurance that your aligners are doing their job. If you really think about it, without pressure and tightness, how e