S8-SGTB Mandibular advancement

Doctor's Summary

1. The patient has a combined skeletal and mandibular positioning originated malocclusion with facial prognathism (subtype II), accompanied by mandibular retraction and anterior deep overbite. The treatment difficulty lies in how to improve the mandibular retraction and deep overjet of anterior teeth. Traditional invisible orthodontic treatment mainly focuses on intruding anterior teeth to improve the anterior overjet and adjusts the sagittal position of the lower arch through class II traction in some ways at the same time and improve the class II molar relationship. This is a relatively inefficient way of orthodontic treatment and prolonged class II traction may have unfavorable effects on the periodontal of lower anterior teeth and temporomandibular joints.

2. Apply Smartee GS mandibular repositioning technology (S8-SGTB) to advance the mandible to a normal position, which can not only improve the side facial profile but also guide the condyles that are in the receding position to an appropriate position and stimulate condylar remodeling. The position of the mandible and condylar will be stabilized through 10-12 months of mandibular advancement, and by simultaneously intruding the anterior teeth during advancement. This not only improves the deep overbite of the anterior teeth efficiently, but also improves the stability of the treatment results and reduces the difficulty and time of the occlusal contact of molars in the second phase.

3. A small amount of further proclination of the lower anterior teeth affects the results of mandibular advancement to a certain extent. A better treatment result will be obtained if the proclination of the lower anterior teeth is controlled with TADs or lip bumper.

Special thanks to Dr. Dai Zheng for providing the above content