Special advantages of the distraction device through parallel plains
The bi-directional alveolar distraction osteogenesis, which means small vertical activations alternating with horizontal activations by other distraction devices on the market, interferes with the fragile equilibrium of the regenerative bone. (Jenssen, 2001) Therefore, it is recommended to determine accurately the three-dimensional vector before insertion of the device. If the plain-distractor is incorporated at a determined angle, then by activating the distraction device the regenerative bone augments vertically and horizontally in calm steps. This has a better effect on the regenerative bone. A so-called jiggling or callus-massage can be achieved in calm determined steps, which improves the quality of regenerative bone. This can be securely achieved because the three-dimensionality is guaranteed. The way to activate the distraction device by drilling the screw back and forth is perfect for jiggling. (Jiggling and callus-massage by Hidding, Lazar, Zöller, 1999)