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首页> 外文期刊>Dental Press Journal of Orthodontics >Cephalometric effects of the Jones Jig appliance followed by fixed appliances in Class II malocclusion treatment
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Cephalometric effects of the Jones Jig appliance followed by fixed appliances in Class II malocclusion treatment

机译：Jones Jig矫治器随后在II类错牙合畸形治疗中使用固定矫治器的头颅测量效果

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OBJECTIVE: The aim of this study was to cephalometrically assess the skeletal and dentoalveolar effects of Class II malocclusion treatment performed with the Jones Jig appliance followed by fixed appliances. METHODS: The sample comprised 25 patients with Class II malocclusion treated with the Jones Jig appliance followed by fixed appliances, at a mean initial age of 12.90 years old. The mean time of the entire orthodontic treatment was 3.89 years. The distalization phase lasted for 0.85 years, after which the fixed appliance was used for 3.04 years. Cephalograms were used at initial (T1), post-distalization (T2) and final phases of treatment (T3). For intragroup comparison of the three phases evaluated, dependent ANOVA and Tukey tests were used. RESULTS: Jones Jig appliance did not interfere in the maxillary and mandibular component and did not change maxillomandibular relationship. Jones Jig appliance promoted distalization of first molars with anchorage loss, mesialization and significant extrusion of first and second premolars, as well as a significant increase in anterior face height at the end of treatment. The majority of adverse effects that occur during intraoral distalization are subsequently corrected during corrective mechanics. Buccal inclination and protrusion of mandibular incisors were identified. By the end of treatment, correction of overjet and overbite was observed. CONCLUSIONS: Jones Jig appliance promoted distalization of first molars with anchorage loss represented by significant mesial movement and extrusion of first and second premolars, in addition to a significant increase in anterior face height.
机译：目的：本研究的目的是通过头颅测量评估使用琼斯吉格矫治器和固定矫治器进行的II类错牙合治疗的骨骼和牙槽骨效果。方法：样本包括25例使用Jones Jig矫治器和固定矫治器治疗的II类错牙合患者，平均初始年龄为12.90岁。整个正畸治疗的平均时间为3.89年。远端化阶段持续0.85年，之后使用固定矫治器3.04年。头颅图用于治疗的初始阶段（T1），脱药后阶段（T2）和治疗的最终阶段（T3）。为了对评估的三个阶段进行组内比较，使用了相关的ANOVA和Tukey检验。结果：Jones Jig矫治器没有干扰上颌和下颌骨的组件，也没有改变上颌下颌的关系。 Jones Jig矫治器促进了第一磨牙的远侧移动，从而导致锚固丢失，弥散化以及第一和第二前磨牙的明显挤压，以及治疗结束时前脸高度的显着增加。随后在矫正机制中矫正了口腔内远侧切除术中发生的大多数不良反应。确定了下颌切牙的颊侧倾斜和突出。到治疗结束时，观察到矫正了过度喷射和咬合。结论：Jones Jig矫治器促进了第一磨牙的远侧移动，其锚固力损失表现为第一前磨牙和第二前磨牙的明显的近中生运动和挤压，此外前脸高度明显增加。

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