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安氏Ⅱ类错为常见牙畸形,目前一般采用常规平面板或斜面导板矫治,因其妨碍咀嚼,须取下矫治器后患者方可进食,故疗程较长,效果欠佳。至于“小平板”及其它矫治法,由于功能单一,常需分步进行,且也未能很好解决患者的咀嚼困难,故疗效同样不甚理想。作者根据(牙合)诱导理论,采用改良型(牙合)诱导矫治器配合肌能训练矫治安氏Ⅱ类错(牙合)40例,经临床观察疗程短,疗效较好。 资料与方法 一、原理:由于戴平面板或斜面导板时,患者后牙无咀嚼功能,须取下矫治器后方能进食,此时咀嚼压力会影响这类矫治器压低下前牙,升高后牙和引导下倾向前的功能,且戴矫治器时仅下前牙有接触,咬合时矫治器远端容易翘动,固位不好,故而一般疗程较长,疗效不佳。改良型诱导矫治器由于有单侧后牙解剖垫,不仅解决了戴矫治器进食和
Class Ⅱ malocclusion is common dental malformations, the current general flat slab or beveled guide plate correction, because it hinders chewing, the patient must be removed after the appliance before eating, so the longer course of treatment, the effect is not good. As for the “small plate” and other correction methods, due to a single function, often need to step by step, and also failed to properly solve the patient's chewing difficulties, so the effect is also less than ideal. According to (occlusion) induction theory, 40 patients with Class Ⅱ malocclusion were treated with modified (occlusal) induced appliance and muscle training. The clinical observation of short course of treatment showed good curative effect. Materials and methods First, the principle: As wearing a flat slab or beveled guide plate, the patient has no chewing function of the posterior teeth, the appliance should be removed before eating, then chewing pressure will affect such appliances lower anterior teeth, increased Posterior teeth and guide the function of the pre-tilt, and wearing the appliance only when the lower anterior teeth have touch, the distal end of the appliance prone to Alice surgery, poor retention, so the general course of longer, poor efficacy. Improved induced appliance due to unilateral posterior teeth anatomy pad, not only solved the wearing appliances and eating