下颌角

Results: When the slide segment was retained 1 mm width,the fifth cheek tooth and anterior edge midpoint of condyle process anterior slope and coracoid process showed negative displacement and the angle of mandible and the posterior edge midpoint of condyle process posterior slope showed positive displacement on x axes.

结果：在牵张过程中牵张侧下颌骨标志点位移趋势为在内外方向上第五臼齿、喙突、髁状突前斜面前缘中点的运动趋势是向外的，而下颌角、髁状突后斜面后缘中点的运动趋势是向内的；在前后方向上第五臼齿、喙突的运动趋势是向后的，而下颌角的运动趋势是向前的；在上下方向上第五臼齿的运动趋势是向上的。

objectiveto search a simple, safe and effective method for correction of prominent mandibular angle and malar under localanesthesia.methodsaccording to the patient' s condition with prominent mandibular angle and malar, abrasive osteoplasty was performed using the special designed grinding burs with protecting sheath through intraoral incisions under local anaesthsia.resultsfrom 2004 to 2008, we have performed 35 patients with prominent mandibular angle and malar using this method.

目的：探讨一种安全、简便、有效的下颌角肥大及颧骨突出矫治术。方法：根据下颌角肥大及颧骨突出的情况，在局部浸润麻醉下，由口内入路，应用颌面骨电动手术器械行下颌角、颧骨磨削术。结果：2004～2008年，我们共实施35例该手术，所有病例治疗过程顺利，未出现骨折、大出血等并发症，经过1～36个月的随访，所有患者均对术后效果满意。

Results:Atrophied ridge group had lower bone density of mandibular angle and coxofemoral region than well-rounded ridge group and dentate controls; Well-rounded ridge group had lower bone density of mandibular angle than dentate controls,but there was no difference of BMD of coxofemoral region between these two groups.

结果：非丰满组下颌角和髋部骨密度显著低于丰满组和有牙颌对照组；丰满组髋部骨密度与有牙颌对照组差异无显著性，下颌角骨密度则显著低于有牙颌对照组。

Methods:The edentulous patients of senile males and postmenopausal females were selected.All the edentulous subjects were divided into two groups according to the degree of RRR of mandibles: well-rounded ridge group and atrophied ridge group; The BMD of mandibular angle and coxofemoral region (femoral neck,trochanter,and wards triangle) of all subjects were measured by dual energy X-ray absorptiometry.The BMD were compared between well-rounded ridge group and atrophied ridge group in the same sex group.

将60岁以上男性和绝经后女性无牙颌患者依据下颌剩余牙槽嵴吸收程度分为丰满组和非丰满组；采用双能X线吸收法，测量全部研究对象右侧髋部与左侧下颌角的骨密度；在同性别组内对比丰满组和非丰满组间下颌角和髋部骨密度的差别。

Results Male thickness of rubbed sclerotin at frontal protuberance, geison, arcus jugalis , mandibular angle and external occipital protuberance were 5.30±1.24, 2.33±0.24, 2.84±0.75, 6.25±0.75, 8.47±1.36mm; female thickness were 4.20±1.10, 2.10±0.15, 2.14±0.46, 5.10±0.45 and 6.73±1.10mm.

结果 男性额结节可去的骨质厚度5.30±1.24mm，眉弓部可去的骨质厚度2.33±0.24mm，颧弓可去的骨质厚度2.84±0.75mm，下颌角可去的骨质厚度6.25±0.75mm，枕外隆凸可去的骨质厚度8.47±1.36mm，女性分别为：额结节可去的骨质厚度4.20±1.10mm，眉弓部可去的骨质厚度2.10±0.15mm，颧弓可去的骨质厚度2.14±0.46mm，下颌角可去的骨质厚度5.10±0.45mm，枕外隆凸可去的骨质厚度为6.73±1.10mm。

RESULTS:①There was higher tensile stress at the ingual side of symphysis, inside of molar and outside of condyle under the impact of chin.②There was higher tensile stress at the lingual side of symphysis, inside of contralateral molar, outside of contralateral angle, outside of homolateral angle and inside of homolateral body under the impact of body.③There was higher tensile stress at the inside of angle, inside of homolateral condyle, lingual side of symphysis, outside of contralateral condyle and inside of homolateral molar under the impact of angle.

结果：①撞击颏部，其舌侧区，磨牙后区内侧面、髁状突颈外表面以及下颌角外表面具有较高的张应力；②撞击下颌体部，颏部舌侧区，对侧磨牙后区内侧面、对侧下颌角外表面、撞击侧下颌角外侧面、撞击侧体部内侧面具有较高的张应力；③撞击下颌角，其内侧面、撞击侧髁状突颈内侧面、颏部舌侧面、对侧髁状突颈外表面以及撞击侧磨牙后区内侧面具有较高的张应力。

When mandibular was under functional loading, the bending and torsion moment as well as shear force of angle, body and symphyseal fracture was calculated.

分别计算在下颌牙列不同咬合点功能负载时下颌角、下颌体颏孔区及下颌正中联合区3个骨折好发部位骨折断端截面上的弯矩、扭矩及剪应力。

Methods Through the intro-oral approach,we used grinding bit to excise the sclerotin of the mandible angle.

口腔内入路行双侧下颌角突出磨骨整复，磨除双侧突出下颌角以及下颌平台骨质。

The sufferer feels to descend Han to feel a tingling sensation at this time, the Shu gives the two times Han Cape with the food, middle finger of two hands in the meantime and points by wreath, the little finger gave Han body next good luck, each match will descend Han Cape department and the bottom Han body the department push forward above, the Ke-like in shape Tu can immediately slip joint nest but must reset at this time.

此时患者感觉下颌酸麻，术者同时用两手的食、中指托住两下颌角，以环指、小指托下颌体下缘，各指配合将下颌角部和下颌体部推向前上方，此时髁状突即可滑入关节窝而得复位。

Methods One-stage composite facial contour sculpture via an intra-oral approach was designed according to patients' expectations and different facial profiles such as prominent mandibular angle and high zygomatic process.

采用口内切口，对患者下颌角肥大及颧骨过高等情况进行下颌角和颧骨等多部位的面部轮廓复合改形。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。