INVISALIGN IN PRACTICE – WITH OCCLUSAL ADVERSE EFFECTS
– Orthodontic treatment of adults is much more frequent today than previously. The most popular system is Invisalign. Here the treatment is carried out by transparent aligners instead of fixed appliances. The applicability of the Invisalign system has been discussed. It seems that it is able to correct irregular front teeth with normal molar occlusion, and no discrepancies in the jawbone. In the present article, concerning two patient cases, crowding of front teeth was treated with the Invisalign system; however, adverse effects in form of open occlusion in the premolar-/molar regions arose.
– Two young adults with crowding of the teeth in the front regions and normal molar occlusion were treated with Invisalign by use of 20 and 21 sets of aligners, respectively. In both cases satisfying positions of the anterior teeth were achieved. Yet, in both cases the occlusion in the side regions opened. Concerning the first case the malocclusion improved by itself without being fully normal after a retention period of 2 years aligners for night use, while in the other case a refinement was necessary by use of 14 sets of aligners. After 3 years of treatment the occlusion was still open in the left side before retention with bonded wires.
– Crowding of front teeth can be corrected by use of the Invisaling system, but unintended movements of teeth may arise, and result in malocclusion, even in cases within the scope of indication.