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malocclusion patients
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    Methods Six Class II malocclusion patients(2.male and 4 female),the age range of the patients was from 11.5 and 13 years old,they are treated by modified keles slider combined straight wire appliance and non extracts.
    方法:6例安氏II类错伴上前牙拥挤患者(男2例,女4例),年龄11.5~13岁,不拔牙矫治,用改良Keles滑动杆远中移动双侧上颌磨牙结合直丝弓矫治器矫正。
短句来源
    Relationship between treatment time with Hawley retainer and relapse in malocclusion patients
    错畸形患者Hawley上保持器配戴时间与复发的关系
短句来源
    A Study of Bolton Tooth-size of Discrepancies of 196 Malocclusion Patients in Kunming
    昆明地区196例错畸形患者Bolton不调量的分析研究
短句来源
    Study on Bolton index of malocclusion patients
    错畸形患者Bolton指数的研究
短句来源
    STATISTICAL ANALYSIS OF ANGLE CLASSIFICATION FOR 2355 MALOCCLUSION PATIENTS
    2355例错畸形Angle分类统计分析恰雅
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The laleral cephalometric radiographs were studied in 100 subjects with normal occlusion and appearance and 540 untreated malocclusion patients. Forty-five items of the cephalometric criteria were analyzed statistically using a computer automatic picture-digitalizing system in the first two groups, the normal mandibular plane angle and high mandibular palne angle with normal occlusion, and the second two groups, the normal mandibular plane angle with normal occlusion and high mandibular plane angLewith...

The laleral cephalometric radiographs were studied in 100 subjects with normal occlusion and appearance and 540 untreated malocclusion patients. Forty-five items of the cephalometric criteria were analyzed statistically using a computer automatic picture-digitalizing system in the first two groups, the normal mandibular plane angle and high mandibular palne angle with normal occlusion, and the second two groups, the normal mandibular plane angle with normal occlusion and high mandibular plane angLewith malocclusion. Outstanding differences were found in 31 items between the former and 37 items, the latter. The dents-facial structural features of normal occlusion and malocelusion subjects with high mandibular plane angle, and the mechanism of adaptationc and compensation among the components of dents-facial complex were approached. The results showed that an inevitable internal relationship between the high mandibular plane angle and long face and open bite in the malocelusion patients.

本研究选择100例恒牙列初期正常青少年及540例错青少年患者治疗前的定位头侧位X线片,通过计算机自动图形数值化系统进行头测量分析,研究了高下颌平面角正常及错青少年的牙面结构特征,探讨了牙面复合体各组成部分之间的相互适应及代偿机制;阐述了高下颌平面角与长面型及开之间必然的内在联系。

Objective To analyze the patients we treated in clinic through combined orthodontic orthognathic surgery, and get some guidance for the future clinical work Methods All 40 skeletal Class III malocclusion patients we analyzed were from joint clinic of our hospital They aged from 17 to 38 Results The duration for presurgical orthodontic treatment was 9 months on average (2~25 months),and for postsurgical orthodontic treatment about 7 6 months on average (2~15 months) The duration for whole...

Objective To analyze the patients we treated in clinic through combined orthodontic orthognathic surgery, and get some guidance for the future clinical work Methods All 40 skeletal Class III malocclusion patients we analyzed were from joint clinic of our hospital They aged from 17 to 38 Results The duration for presurgical orthodontic treatment was 9 months on average (2~25 months),and for postsurgical orthodontic treatment about 7 6 months on average (2~15 months) The duration for whole active treatment was 16 months on average (4~41 months) The objectives of presurgical orthodontic are: Alignment of dental arches, decompensation of anterior and posterior teeth, leveling of arches, and coordination of the width of the upper and lower arches After presurgical orthodontic treatment, most of the patients could be treated by one piece surgery, which could simplify the surgical procedure and reduce the relapse rate of surgery During the surgery, we modified the intermaxilary fixation wires We used rigid rectangular stainless steel wires with Edgewise appliances as the fixation wires instead of conventional canine and molar bands with multiloop wires The aims of the postsurgical orthodontic treatment are : closing residual spacing, extrusion of posterior teeth for correction of local openbite in premolars region, paralleling of the teeth, and adjustment of occlusion Conclusion Pre and post ssurgical orthodontic treatment is essential to the surgical treatment for mandibular prognathism.

目的 总结、分析口腔正畸 正颌外科联合矫治下颌前突畸形的治疗经验 ,以指导临床工作。方法 对 4 0例年龄为 17~ 3 8岁的下颌前突患者经口腔正畸与正颌外科联合矫治的资料进行分析。结果  4 0例下颌前突患者平均术前正畸治疗时间 9个月 ( 2~ 2 5个月 ) ,术后正畸治疗时间 7 6个月 ( 2~ 15个月 )。整个治疗过程平均 16个月 ( 4~ 4 1个月 )。术前正畸治疗的目标为排齐上下牙列 ,完成切牙和磨牙的去代偿治疗 ,整平牙列 ,协调上下牙弓宽度。术后正畸的目标为关闭残余间隙 ,伸长后牙以纠正后牙区开 ,平行移动牙齿 ,调整关系。结论 术前术后正畸治疗是正颌外科手术矫正下颌前突畸形不可缺少的步骤和取得良好效果的保证。

Objective To study the mechanics of Pendulum appliance, and its effects on craniofacial and dentoalvaolar structure Methods 16 class II malocclusion patients (13 females and 3 males)were selected as the subjects, aged from 9 3 to 22 8 years(13 6 on average) All the patients were treated with Pendulum appliance The duration for distolization of upper molars was from 1 to 6 months( 3 7 months on average) Cephalomatric analysis was used Results 1 The upper molar was distalized by...

Objective To study the mechanics of Pendulum appliance, and its effects on craniofacial and dentoalvaolar structure Methods 16 class II malocclusion patients (13 females and 3 males)were selected as the subjects, aged from 9 3 to 22 8 years(13 6 on average) All the patients were treated with Pendulum appliance The duration for distolization of upper molars was from 1 to 6 months( 3 7 months on average) Cephalomatric analysis was used Results 1 The upper molar was distalized by 3 59 mm per side with mainly tilting movement 2 Incisors moved mesially by 3 28 mm per side (tilting movement) 3 Anterior overjet was increased by 1 56 mm after treatment and more than 6 mm space was created per side 4 The upper molars extruded slightly by 0 69 mm 5 The width of upper arch was increased by 2 03, 1 66, 1 10 mm at molar, premolar and canine region respectively 6 The Pendulum appliance had less effects on craniofacial structure because of short treatment time Conclusions The Pendulum appliance can distalize the upper molars effectively without patients′ active cooperation However, it should be cautions in using the appliance because of its side effects on tilting of molars and mesial movement of incisors

目的 研究改良摆型矫治器对牙和面部骨骼结构的影响。方法 选择安氏Ⅱ类错16例 ,其中女 13例 ,男 3例 ,年龄 9 3~ 2 2 8岁 ,平均 13 6岁。采用摆型磨牙远中移动矫治器治疗。摆型矫治器推磨牙向远中的疗程为 1~ 6个月 ,平均 3 7个月。以X线头影测量分析和模型测量分析为测定手段。结果 ①每侧磨牙平均向远中移动 3 5 9mm ,主要为磨牙向远中倾斜移动。②切牙牙冠平均向近中移动 3 2 8mm ,主要为切牙的近中倾斜移动 ,前牙的覆盖增加 ,达 1 5 6mm。③牙列出现较大的间隙 ,双侧分别达 6 70mm和 6 5 9mm。④磨牙垂直向移动较少 ,推磨牙后 ,磨牙平均伸长仅0 6 9mm。⑤磨牙区、双尖牙区与尖牙区的宽度均增加 ,分别达 2 0 3mm、1 6 6mm和 1 10mm。⑥摆型矫治器对面部骨骼结构无明显的直接影响。结论 摆型矫治器能有效地远中移动上颌磨牙 ,快速矫正磨牙关系。但也可导致磨牙倾斜及切牙唇向倾斜移动 ,临床治疗中应予注意

 
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