颏上的

ABSTRACT:OBJECTIVETo study the correlation between anatomic structure of the inferior alveolar nerve canal and dental implantation by measuring mandible innervation esemplarsMETHODSThe intramandibular course of mandibular canal and its dimendion were measured in 15 mandibles with teeth; the relationship between blood vessel and nerve was observed in 5 fresh samples in which the artery was filled; and then the data were analyzed by statisticsRESULTSThe mandibular canal was close to the lingual side and the inferior margin of the mandible, the mandibular canal and the 10mm underside of mandible were parallel in the region of the first and the second molars, it runned outboard to genal aperture when it was hereabout genal aperture, and the blood vessel lay above nerve in the mandibular canalCONCLUSIONIn implant operation performed according to normal anatomy, injury to inferior alveolar nerve may be avoided.

［目的］探讨下颌管的解剖结构与牙种植的关系［方法］选取15具牙列完整的成人离体下颌骨标本和5具经过动脉血管内灌注的新鲜标本，测量下颌骨在每个牙位截面上有关牙槽嵴及下颌管的相关数据，进行统计学分析［结果］牙槽嵴顶以及下方10mm宽度由前向后逐渐增宽；牙槽嵴由上向下逐渐增宽；下颌管位于下颌骨体内下方走行中偏舌侧，并近下颌骨下缘，在下颌第1，2磨牙区下颌管走行与下颌下缘成平行状，在近颏孔处转向外和向颊侧出颏孔；下颌管内血管位于下牙槽神经之上［结论］牙种植术中按正常解剖部位并且侧重颊侧骨板操作，可避免损伤下牙槽神经；如果术中下颌管内突然涌出大量新鲜血液，则提示若继续手术可能损伤下牙槽神经。

They were a pretty, buxom quartette, so crammed into the carriage that their hoops and flounces overlapped and their parasols nudged and bumped together above their wide leghorn sun hats, crowned with roses and dangling with black velvet chin ribbons.

她们是一支健美而活泼的四人小分队，挤在马车里衣裙压着衣裙，阳伞遮着阳伞，连宽边早帽上簪着的红玫瑰和系在下巴颏底下的天鹅绒带子也都在互相碰撞着，纠缠里。

They were a pretty, buxom quartette, so crammed into the carriage th at their hoops and flounces overlapped and their parasols nudged and bumped together above their wide leghorn sun h at s, crowned with roses and dangling with black velvet chin ribbons.

她们是一支健美而活泼的四人小分队，挤在马车里衣裙压着衣裙，阳伞遮着阳伞，连宽边早帽上簪着的红玫瑰和系在下巴颏底下的天鹅绒带子也都在互相碰撞着，纠缠里。

Results:(1) the mark of glabellar point, subnasal point,stomoschisis point, and supramentale fit the conception of "the golden point".

结果：新疆维吾尔族美貌女性面部、五官比例的特点：（1）眉间点、鼻下点、口点、颏上点4个界点中除颏上点以外，其余界点与&黄金点&基本相符。

The main change of the morphology is the obvious incrassation of the soft tissue between the mentalabial sulcus and the superior cervial point.

下颌骨前徙手术较下颌后退形态变化要大而复杂，主要的形态变化是表现为颏唇沟点至颈上点间区域软组织明显增厚，颏突出度显著增强，颏部轮廓形态向正常接近。

There are differences in upper lip and mentolabial sulcus. For class III malocclusion there are significant differences in lower lip and mentolabial sulcus. There are differences in subnasale . Campared with the facial soft tissue thickness of class II malocclusion , for class III malocclusion there are significant differences in lower lip. There are differences in subnasale and upper lip.

与安氏Ⅰ类错合患者相比，安氏Ⅱ类错合患者的颅面部软组织覆盖厚度在鼻底部有显著性差异，在上唇和颏唇沟有差异；安氏III类错合患者的颅面部软组织覆盖厚度在下唇和颏唇沟有显著性差异，在鼻底部有差异；安氏Ⅱ类错合患者的颅面部软组织覆盖厚度与安氏III类错合患者相比，在下唇有显著性差异，在鼻底部和上唇有差异。

In the soft tissue measurements, the value of soft tissue facial angle and B'-Pos-FH in the first extraction group was less than those in the second extraction group significantly. After treatment all the patients had an increase in S-Ns-Pos angle, soft tissue facial angle, B'-Pos-FH and depth of mentolabial groove. At the same time, soft tissue convexity angle was diminished obviously. But the change was not significant between the two premolar extraction groups.

2在对软组织项目的测量中，治疗前第一前磨牙拔除组的软组织面角、颏沟倾角均小于第二前磨牙拔除组，治疗后2组均出现软组织面凸角减少，颏凸角、软组织面角、颏沟倾角、颏唇沟深度增加；但2组在各项测量项目的变化上无显著组间差别。

But the value of H angle is smaller than class I malocclusion . Campared with the data of class II malocclusion , for class III malocclusion there are significant differences in LsL , LiL , lower lip angle of inclination , mentolabial sulcus angle , H angle , upper lower lip angle , Ns-Sn-Ls . For class III malocclusion the value of LsL is shoter than class II malocclusion , but the value of LiL is longer than class II malocclusion . The value of lower lip angle of inclination , mentolabial sulcus angle , upper lower lip angle is bigger than class II malocclusion .

安氏Ⅱ类错合患者与安氏Ⅲ类错合患者相比，在上唇长、下唇长、上唇倾角、下唇倾角、颏唇沟角、H角、上下唇角和软组织轮廓这些指标有显著性差异；安氏Ⅱ类错合患者的上唇长比安氏Ⅲ类错合患者的长、安氏Ⅱ类错合患者的下唇长比安氏Ⅲ类错合患者的短；安氏Ⅱ类错合患者的上唇倾角和H角比安氏Ⅲ类错合患者的大，安氏Ⅱ类错合患者的下唇倾角、颏唇沟角和上下唇角比安氏Ⅲ类错合患者的小。

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。

Political cartoons often represent the U.S. as a tall man with chin whiskers, called Uncle Sam.

政治性漫画通常将美国描绘成一个下巴颏上留着胡须的高大男人，称作山姆大叔。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。