Invisible braces also called clear aligners are a transparent set of trays that are teeth shaped and restores the slight misalignment of the teeth. Crooked teeth that don’t fit together correctly are harder to stay clean and are in danger for cavity and gum disease. it’s a plastic sort of a tooth that works for the adjustment of the teeth but in transparent form. Each aligner is worn for 20 hours each day for 2 weeks. These slowly move the teeth into the position agreed between the orthodontist or dentist and therefore the patient.