Teeth are crooked because they didn't erupt properly and came in tilted, sideways and not upright. Fastbraces® Technology uprights in one stage the roots of the teeth from the beginning of treatment with just one square wire. Treatment time can now typically be completed in weeks to months instead of years.
Old braces are typically square in shape and they move teeth in multiple stages. If the square braces are replaced with triangular ones, the distance between the braces increases substantially. Therefore, by doubling the distance for example, the flexibility of the square wire increases eight times (23 = 8) and thus the square wire can be engaged comfortably and easily between the braces in order to upright the roots from the beginning of treatment.