多曲方丝弓技术治疗成人轻度骨性Ⅲ类错（牙合）的临床研究

发布时间：2019-05-15 23:42

【摘要】：目的:运用多曲方丝弓矫治技术矫治成人轻度骨性Ⅲ类错(?),并探讨其临床疗效。材料与方法:选取大连医科大学口腔医学院附属口腔医院正畸科在2014年6月收治的一例成人轻度骨性Ⅲ类错(?)的女性患者,来诊时年龄为28周岁。患者前牙对刃咬合,上颌中线与面中线一致,下颌中线左偏0.5mm,左侧尖牙和磨牙中性关系,右侧尖牙和磨牙为近中关系。通过对患者的临床检查,X线头颅侧位片及全口曲面断层片的测量分析,模型分析,制定正畸治疗方案:正畸前拔除上下颌第三磨牙,粘接0.018"系统标准方丝弓托槽,采用多曲方丝弓矫治技术进行矫治,在Ni-Ti丝排齐整平上下颌牙列后,运用MEAW弓后倾直立并远中移动下颌磨牙,适当直立前牙,配合Ⅲ类短牵引及前牙垂直牵引,达到掩饰性治疗目的,建立正常咬合关系。待矫治完成后,去除固定矫治装置,制作并嘱患者戴用Hawley保持器以维持稳定的治疗效果。矫治结束后,拍摄全口曲面断层片及头颅侧位片,并制取记存模型。结果:经过11个月的正畸治疗,对该患者矫治前后X线头影测量数据及结构重叠比较分析:双侧尖牙及磨牙关系均为中性关系;前牙对刃(?)纠正,覆(?),覆盖达到正常;下磨牙直立并部分远中移动,FMA增加0.8°提示垂直向的控制尚可;上下切牙均内收,Z角增加1.8°侧貌变化少量,咬合关系得到良好的改善,患者对矫治结果满意。结论:应用多曲方丝弓矫治技术可以有效的控制牙齿在牙弓内的精确移动,使磨牙后倾直立,切牙回收,从而达到正常覆(?)覆盖,咬合关系改善明显,取得良好的矫治效果。
[Abstract]:Objective: to correct mild skeletal class III malocclusion (?) in adults by multi-curved wire arch correction technique, and to explore its clinical effect. Materials and methods: a case of mild skeletal class III malocclusion in adults treated in the Department of Orthodontics, affiliated Stomatological Hospital, School of Stomatology, Dalian Medical University in June 2014 was selected. Twenty-five percent of female patients came to visit at the age of 28. The anterior teeth were occlusal, the maxillary midline was consistent with the facial midline, the left side of the mandibular midline was 0.5mm, the left fangs and molars were neutral, and the right fangs and molars were near-middle. Through the clinical examination of the patients, the measurement and analysis of X-ray lateral cephalogram and the whole mouth surface tomography, the model analysis, the orthodontic treatment plan was worked out: the maxillary and mandibular third molars were removed before orthodontic, and the standard square wire arch bracket of 0.018 "system was bonded. The multi-curved square wire arch correction technique was used to correct the mandibular molars. After the Ni-Ti wire row was neat and flat, the mandibular molars were tilted upright and moved distally by MEAW arch, and the orthodontic anterior teeth were properly upright, combined with type III short traction and vertical traction of the anterior teeth. To achieve the purpose of masking therapy and establish the normal occlusal relationship. After the correction is completed, the fixed correction device is removed, and the patient is made and ordered to wear Hawley retainer to maintain the stable therapeutic effect. After correction, the whole curved surface tomography and lateral cephalic film were taken, and the recording model was made. Results: after 11 months of orthodontic treatment, the data and structure overlap of X-ray cephalometric measurement before and after orthodontic treatment were compared and analyzed: the relationship between bilateral fangs and molars was neutral, and the front teeth were edge-to-edge. Correct, cover (?), cover up to normal, lower molars upright and partly far away, FMA increased 0.8 掳to indicate vertical control can be used, and the lower molars are upright and partly distant, and the increase of 0.8 掳indicates that the control of vertical direction can be obtained. The upper and lower incisors were admitted, the Z angle increased 1.8 掳, the occlusal relationship was well improved, and the patients were satisfied with the correction results. Conclusion: the correction technique of multi-curved square wire arch can effectively control the accurate movement of teeth in the arch, make the molars lean upright and recover the incisors, so as to achieve the normal overlying (?) The relationship between coverage and occlusal was improved obviously, and good correction effect was obtained.
【学位授予单位】：大连医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R783.5

【相似文献】