In the aesthetic iron of the front part, the position or shape of papilla becomes an important key to victory or defeat.
In this case, split two single tubes. In order to maximize the protection of the living papilla who will be injured if he is careless, in order to find a stable aesthetic position, the sharp V-shape is well done through microscope operation, which can reproduce the sense of separation of the two teeth and the stable papilla shape. Um.
Although it seems easy, I think it can only be achieved with a lot of effort.