运用种植钉辅助治疗骨性Ⅲ类开合错合畸形一例
发布时间:2018-11-11 22:14
【摘要】:研究背景:安氏Ⅲ类前牙(牙合)对于正畸医生来说一直都是一种挑战。为了得到好的矫治效果,医生需要彻底了解错(牙合)畸形的病因、严重程度、患者的诉求和期望值,从而选择恰当的矫治方法。对于生长发育停止的成人来说,轻度的病人可以通过牙齿的代偿来治疗,而对于比较严重的病人来说,常常需要正颌手术。正畸正颌联合治疗相对于单纯正畸代偿治疗而言,具有更好的稳定性。正畸代偿治疗Ⅲ类开(牙合)有很多种方法,具体方法的选择取决于支抗的设计,患者的诉求,以及医生的技术和喜好。常用的治疗Ⅲ类开(牙合)的技术有多曲方丝弓(MEAW)技术,Tweed-Merrifield技术和直丝弓固定矫治技术。它们都能取得让人满意的矫治效果,但这些方法都存在一些不足。MEAW技术需要医生有很好的弓丝弯制技巧,Tweed技术需要患者的良好配合。现在有一些更好的骨支抗也对Ⅲ类开(牙合)有较好的效果。研究目的:本病历试图采用自锁托槽加种植钉辅助进行Ⅲ类牵引的方法来探究其对Ⅲ类开(牙合)病历的矫治效果。方法:选取大连奥索口腔门诊一名16岁健康男性为研究对象,该患者主诉是前牙咬不上,诊断结果是骨性Ⅲ类开(牙合),下唇突,上牙唇倾,前牙以及右侧后牙反(牙合),下中线左偏1mm,上下前牙散隙。病因分析为遗传因素(父亲有类似面型)以及不良舌习惯。拔除上合第三磨牙,矫治方法采用Damon Clear自锁托槽以及上后牙区种植钉辅助Ⅲ类牵引。上颌进行适当弓形调整以及后牙进行交互牵引用于纠正后牙的反(牙合)。矫治期间督促患者进行舌肌训练以及口腔卫生宣教。主动治疗结束后采用哈雷式保持器进行保持。结果:患者侧貌有了明显改善,Z角达到73°。下唇突度得到一定内收,覆(牙合)覆盖恢复到正常。上切牙唇倾度稍有减小,1-NA从40°减小到38°,下前牙稍有内收,IMPA从92.5°减小到83°。上下前牙伸长以辅助纠正开(牙合),垂直向没有明显的改变,上下磨牙有轻微伸长。结论:自锁托槽加上后牙种植钉辅助Ⅲ类牵引治疗该骨性Ⅲ类开(牙合)病例,取得了较为满意的效果。
[Abstract]:Background: class III anterior teeth (occlusal) have been a challenge for orthodontists. In order to get good treatment effect, doctors need to thoroughly understand the causes, severity, patients' demands and expectations of malocclusion, and choose the appropriate treatment methods. For adults with stunting, mild patients can be treated by tooth compensation, while for more severe patients, orthognathic surgery is often required. Orthodontic orthognathic combined therapy has better stability than simple orthodontic compensatory therapy. There are many methods of orthodontic compensatory treatment for class 鈪,
本文编号:2326291
[Abstract]:Background: class III anterior teeth (occlusal) have been a challenge for orthodontists. In order to get good treatment effect, doctors need to thoroughly understand the causes, severity, patients' demands and expectations of malocclusion, and choose the appropriate treatment methods. For adults with stunting, mild patients can be treated by tooth compensation, while for more severe patients, orthognathic surgery is often required. Orthodontic orthognathic combined therapy has better stability than simple orthodontic compensatory therapy. There are many methods of orthodontic compensatory treatment for class 鈪,
本文编号:2326291
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