Factors for Facial Soft Tissue Long-term Stability after Profound Profile Changes by Vertical Control with Microimplants

Critical point for facial profile improvement in hyperdivergent patients is the disappearance of hypermentalis activity, and this can be achieved by the retraction of the anterior teeth and intrusion of the dentitions, and more importantly by counterclockwise rotation the mandible resulting from the vertical control with microimplants. Regarding long-term stability of the intrusion, some amount of relapse might be inevitable. This relapse movement of dentitions might resulted in reappearance of hypermentalis muscle activity, deterioration of facial profile. By careful follow-up and related study, the speaker could get some clues on factors affecting long term stability of the dentitions and especially on stability of soft tissue facial beauty. The speaker will present the treatment results and long-term stability of skeletal Class II hyperdivergent patients in regard to skeletons, dentitions and soft tissues, and to present factors concerning soft tissue stability.