Analysis of effects from usage of skeletal anchorage-assisted Pendulum appliance on vertical component of craniofacial structure

ABSTRACT

PURPOSE: The purpose of this study was to evaluate distalizing effects from the Pendulum appliance on vertical component of craniofacial structures. MATERIALS AND METHODS: 20 Patients who visited for orthodontic treatments are assigned to two groups. Group I, SN-MP > 37 degrees are showing hyperdivergent pattern. Group II, 29 < SN-MP < 37 degrees are showing mesocephalic pattern. Each group are consisted of 10 people. RESULTS AND CONCLUSIONS: Differences between skeletal classifications result in significant differences at labioversion of lower incisors and distalized amount, which is larger at Group I (P <.05). Group II has only shown significant distalized molars (P < .05). Labioversion of lower incisors has not shown significant change. Skeletal anchorage-assisted Pendulum appliance doesn't deteriorate vertical component nor significantly improve.