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[The clinical observation of treating Angle II (1) malocclusion in adults with Tip-Edge appliance]
Xiaojun Liu1, Shuang Yao, Shuang Yang
1Department of Orthodontics, Red Cross Hospital of Yunnan Province, Kunming 650021, China.
Objective:
The aim of this study was to observe the effects of Tip-Edge Differential Straight-Arch Technique in treating Angle II (1) malocclusion.
Methods:
13 adults with Angle II (1) malocclusion were treated with Tip-Edge appliance. The results of cephalometric measurements before and after treatment were statistically analyzed.
Results:
The average treatment time was 16.2 months. The results of cephalometric measurement showed that UIC-AP decreased by 3.72 mm (P < 0.01), LIC-AP decreased by 1.03 mm (P < 0.01), LIC-MP decreased by 1.59 mm (P < 0.01), L6-MP increased by 0.99 mm (P <0.05), the over jet decreased by 3.73 mm (P < 0.01).
Conclusion:
Tip-Edge appliance can effectively change the dento-alveolar position by means of the differential mechanics.

