Square slot (an E-line patent)
• The world's first-ever lingual bracket system. From rectangle to square slots.
The slot is the place where the arch wire passes through. The original setup including, the labial ones, were made with a rectangular shape. But, by breaking the rules and making the slot square shaped has enabled us to achieve better outcomes.
• Accurate control leads to beautiful alignment
When the slot is square the space between the wire and the slot (play) become equal in respect to both the horizontal and vertical axes, which make controlling the wire easier in any direction in 360 degrees; this helps us by making tooth movement more efficient. Further, it means that we can control tooth movement accurately in 3D and produce a more beautiful and accurate outcome.