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   malocclusion 在 临床医学 分类中 的翻译结果: 查询用时:0.116秒
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malocclusion
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  malocclusion
Adolescents with commonly occurring forms of malocclusion often are presumed to be at risk for negative self-esteem and social maladjustment.
      
Eight patients with moderate malocclusion were selected.
      
This study demonstrates that the masseteric silent period may be used as a diagnostic and prognostic support, before and after surgery for malocclusion.
      
The electrophysiological changes generated by malocclusion secondary to prognatism have been evaluated before and after maxillofacial corrective surgery in 14 patients aged between 18 and 36 years.
      
Malfunctions of the otolaryngeal system such as otitis media, upper respiratory obstruction, deafness, speech delay, and malocclusion are interrelated and can also lead to disabilities in communication and learning.
      
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Objective: To study the correlation between morphologic variables and head posture.Method:The samples comprised 61 malocclusion patients aged 11 to 16 years old.A lateral skull roentgenograph was taken of each patients under natural head posture.Result:No sex difference in head posture measurements was observed and significant correlation was found between natural head posture and angle SNA,SNB,SN PP,SN OP,Ar Go Me,FH Ul.Angle SNA,SNB,SN PP,SN OP and IMPA in the extension posture group were significantly...

Objective: To study the correlation between morphologic variables and head posture.Method:The samples comprised 61 malocclusion patients aged 11 to 16 years old.A lateral skull roentgenograph was taken of each patients under natural head posture.Result:No sex difference in head posture measurements was observed and significant correlation was found between natural head posture and angle SNA,SNB,SN PP,SN OP,Ar Go Me,FH Ul.Angle SNA,SNB,SN PP,SN OP and IMPA in the extension posture group were significantly different from those in the flexion.Conclusion:Natural head posture is correlated to facial morphology.

目的:研究自然头位时头颅定位侧位片上主要变量与头位之间的相关关系。方法:61名11岁~16岁的错牙合患者,男性24名,女性37名,拍摄自然头位片。结果:男女性别之间在头位变量上无显著性差异;且SNA、SNB、SN-PP、SN-OP、Ar-Go-Me、FH-U1等变量与头位变量之间存在有显著性意义的相关关系;且在头位伸展组(extension)与屈曲组(flexion)之间SNA、SNB、SN-PP、SN-OP、IMPA等变量存在显著性差异。结论:头位变量与面部结构变量之间存在一定的相关关系。

Objective:The present study was to deliberate the mechanics of skeletal Class Ⅲ case correction with multiloop edgewise archwire.Methods:Pretreatment and posttreatment cephalometrc radiographs from 20 subjects(14 to 20 years)who had a skeletal Class Ⅲ malocclusion were analyzed.Annual rate differences were compared with t test.Results:The upper central incisor moved mesially (3.72±0.80) mm and intruded by (2.89±0.28)mm,the lower central incisor retraction was (1.31±0.41)mm and extrusion was (2.10±0.25)mm,the...

Objective:The present study was to deliberate the mechanics of skeletal Class Ⅲ case correction with multiloop edgewise archwire.Methods:Pretreatment and posttreatment cephalometrc radiographs from 20 subjects(14 to 20 years)who had a skeletal Class Ⅲ malocclusion were analyzed.Annual rate differences were compared with t test.Results:The upper central incisor moved mesially (3.72±0.80) mm and intruded by (2.89±0.28)mm,the lower central incisor retraction was (1.31±0.41)mm and extrusion was (2.10±0.25)mm,the upper molar moved mesially (1.31±1.20)mm and extruded by (0.98±0.19)mm;the lower molar retracted (2.53±1.40)mm and extruded (1.10±0.63)mm.SAN increased by (0.68±0.23)°,SNB decreased by (1.83±0.52)°.FMA increased by (1.50±0.22)°.The lowerlip retracted (3.19±0.84)mm,OP MP increased by (7.40±0.50)°.Conclusion:The skeletal Class Ⅲ maloccusion correction was emphasized on dento alveolar camouflage,accompanied ty minor mesial movement of upper base bone.Through effective control of occlusal plane,the olwer posterior teeth are retracted and uprighted.

目的 :借助X线头影测量 ,评价多曲方丝弓技术矫治骨性Ⅲ类反前后牙、面可能的改变 ,并阐明其矫治机制。方法 :选择轻度或中度骨性反患者 2 0例 ,采用 0 56mm× 0 .71mm的标准方丝弓托槽完成矫治 ,矫治前后分别摄定位侧位片。结果 :矫治后上中切牙水平前移 ( 3 72± 0 .80 )mm ,压低 ( 2 .89± 0 2 8)mm ;下中切牙水平后移 ( 1 31± 0 4 1)mm ,伸长 ( 2 10± 0 2 5)mm ;上第一磨牙水平前移 ( 1 31±1 2 0 )mm ,伸长 ( 0 .98± 0 19)mm ;下第一磨牙水平后移 ( 2 .53± 1 4 0 )mm ,伸长 ( 1.10± 0 63)mm ;SNA增大( 0 68± 0 2 3)° ,SNB减少 ( 1.83± 0 52 )° ,FMA增大 ( 1 50± 0 2 3)° ,下唇珠突距减少 ( 3 19± 0 .84 )mm ,OP MP增大 ( 7 4 0± 0 50 )°。结论 :该技术矫治骨性反的机制主要为牙 牙槽的掩饰作用且伴有少量上颌基骨的前移 ;在平面有效控制的前提...

目的 :借助X线头影测量 ,评价多曲方丝弓技术矫治骨性Ⅲ类反前后牙、面可能的改变 ,并阐明其矫治机制。方法 :选择轻度或中度骨性反患者 2 0例 ,采用 0 56mm× 0 .71mm的标准方丝弓托槽完成矫治 ,矫治前后分别摄定位侧位片。结果 :矫治后上中切牙水平前移 ( 3 72± 0 .80 )mm ,压低 ( 2 .89± 0 2 8)mm ;下中切牙水平后移 ( 1 31± 0 4 1)mm ,伸长 ( 2 10± 0 2 5)mm ;上第一磨牙水平前移 ( 1 31±1 2 0 )mm ,伸长 ( 0 .98± 0 19)mm ;下第一磨牙水平后移 ( 2 .53± 1 4 0 )mm ,伸长 ( 1.10± 0 63)mm ;SNA增大( 0 68± 0 2 3)° ,SNB减少 ( 1.83± 0 52 )° ,FMA增大 ( 1 50± 0 2 3)° ,下唇珠突距减少 ( 3 19± 0 .84 )mm ,OP MP增大 ( 7 4 0± 0 50 )°。结论 :该技术矫治骨性反的机制主要为牙 牙槽的掩饰作用且伴有少量上颌基骨的前移 ;在平面有效控制的前提下 ,获得下磨牙的直立和后移。

Objective:The aim of this study was to establish the average of superfacial masseter muscle of young females with normal occlusion, and further supply a clue for dentists to evaluate the muscle function of patients with malocclusion.Methods: Totally 31 young females were investigated in this study, whose mean age was 21years and 4 months old. Ultrasound technique was applied to obtain the ultrasound parameters of images, including area, width, mean thickness, maximal thickness of the cross_section and...

Objective:The aim of this study was to establish the average of superfacial masseter muscle of young females with normal occlusion, and further supply a clue for dentists to evaluate the muscle function of patients with malocclusion.Methods: Totally 31 young females were investigated in this study, whose mean age was 21years and 4 months old. Ultrasound technique was applied to obtain the ultrasound parameters of images, including area, width, mean thickness, maximal thickness of the cross_section and the length of the vertical_section of the masseter muscle under relaxing, maximal clenching and maximal protruding condition. The data were analyzed using ANOVA analysis.Results: The mean value and standard deviation of every parameter were figured out and it was found that there was a significant difference between relaxing and maximal clenching as well as maximal protruding.Conclusion: The result indicates that ultrasonic technique is an effective method for describing superfacial masseter muscle morphology and diagnosing its function.\;

目的 :建立正常青年女性浅层咬肌在下颌处于不同功能位置时超声形态的正常值 ,为评价正畸患者咬肌功能提供参考。方法 :采用超声成像技术测量了 31例正常青年女性下颌处于姿势位、最大紧咬位、最大前伸位时浅层咬肌横截面的面积、周长、横径、平均厚度、最大厚度及纵截面的长度 ,得出各指标均值 ,并比较下颌处于不同功能位置时浅层咬肌形态的差异。结果 :下颌处于 3种功能位时各测量指标差异有显著性 ,最大紧咬位浅层咬肌收缩 ,最大前伸位咬肌牵张 ,姿势位时浅层咬肌的各项指标则介于两者之间。结论 :超声成像技术是检测浅层咬肌形态以诊断其下颌功能位置的一种有效方法。

 
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