1)maxillary first permanent molar上颌第一恒磨牙
1.Application of dental operative microscope in detecting the mesiobuccal root canal orifice of the maxillary first permanent molar;牙科显微镜在探查上颌第一恒磨牙近颊根管口的应用
2.Using five different ways to study the root canal orifices of the maxillary first permanent molar teeth;不同方法探查上颌第一恒磨牙根管口的研究
英文短句/例句
1.POSSIBLE FACTORS AFFECTING THE POSITION OF THE FIRST MOLAR IN THE MAXILLA上颌第一恒磨牙在颌骨中矢状位置的影响因素
2.Anatomy Research of the Mesio-buccal Canal System of Permanent Maxillary First Molars;上颌第一恒磨牙近颊根根管系统解剖研究
3.The 3-D Finite Element Analysis of Distalization of Maxillary First Molar in Three Different Orthodontics Forces;三种不同加力方式远移上颌第一恒磨牙的三维有限元分析
4.The Study of Resistance of Maxillary First Molar Restored by Different Forms of Post and Core Crown不同形式桩核冠修复上颌第一恒磨牙的抗折力研究
5.Mesiobuccal root canal morphology of one hundred and ten extracted maxil- lary first molars110个离体上颌第一恒磨牙近中颊根根管形态研究
6.Three-Dimensional Finite Element Comparative Assessment of the Maxillary First Molar Distalization with Four Kinds of Intro-oral Appliance;四种颌内矫治器对上颌第一恒磨牙远中移动的三维有限元对比研究
7.Characteristics of the Pulp Chamber of Permanent Anterior Teeth and Mandibular First Molars;恒前牙与下颌第一恒磨牙的髓室特征研究
8.In Vitro study of the anatomy of 36 maxillary second permanent molars of the Uighur people维吾尔族上颌第二恒磨牙牙体解剖的离体研究
9.The comparative study of the automatical drift of the third molar after the extraction of the maxillary and mandibular second molar上下颌第二恒磨牙拔除后第三磨牙自行迁移情况的比较观察
10.Study of the Root Canal System Anatomy of Permanent Maxillary Second Molars in Shandong Province山东地区上颌第二恒磨牙根管系统解剖研究
11.The Biomechanical Analysis of Mandibular First Molar in Lingual Technique;下颌第一恒磨牙舌侧矫治的生物力学分析
12.The Clinical Effect on Closing Obsolete Lower Molar Spaces with Orthodontic Treatment正畸关闭下颌第一恒磨牙缺失间隙的疗效观察
13.The morphological study about secondary mesiobuccal canal(MB2) of the maxillary second molar in vitro of Shandong region山东地区上颌第二恒磨牙近中颊根第二根管的离体牙研究
14.In vitro study of the secondary mesiobuccal canal of the maxillary second molar上颌第二恒磨牙近中颊根第二根管的离体牙研究
15.A study on morphology of isthmus in maxillary first premolars上颌第一前磨牙根管峡部形态的研究
16.An experimental study on the second mesiobuccal canal treatment in the mesiobuccal root of the maxillary first molar上颌第一磨牙近中颊根MB_2根管研究
17.The prevalence of Carabelli's trait in a Chinese population上颌恒磨牙卡氏牙齿特征的观察研究
18.The Clinical Study of Distalizating Maxillary Molar after Maxillary Second Molar Extraction;拔除上颌第二磨牙远移第一磨牙矫治Ⅱ类错（牙合）的疗效研究
相关短句/例句
maxillary first molar上颌第一恒磨牙
1.Assessment of reliability of second mesiobuccal canals in extracted maxillary first molars as located by different observers;不同医师探寻离体上颌第一恒磨牙MB2根管口的可靠性评价
2.There are several apparatics which can be used to distalize the maxillary first molar.远移上颌第一恒磨牙的矫治装置很多，加力方式主要有三种：颊侧加力、舌侧加力、颊舌侧同时加力。
3)Maxillary second molar上颌第二恒磨牙
1.The objectives of this study are to get some anatomical knowledge about the MB2 of the maxillary second molar of Shandong region by studying the teeth in vitro including the discovery rate of MB2,the root canal system,and the location of apical foramens,which may help us to improve the successful rate of RCT of the maxillary molar.目的:本研究的目的是利用离体牙研究山东地区上颌第二恒磨牙近颊第二根管(MB2)的基本情况,研究内容包括:MB2的发现率、根管系统、根管口位置及根尖孔解剖等;为提高本地区上颌第二磨牙根管治疗的成功率提供解剖学基础。
4)mandibular first molar下颌第一恒磨牙
1.The purpose of this study is to investigate the anatomical characteristics of the pulp chamber of permanent anterior teeth and mandibular first molars.本研究拟采用影像学方法测量恒前牙与下颌第一恒磨牙髓室的各项解剖特征，以期有利于临床。
2.Presently, there are many studies about successful treatment with lingual technique and the biomechanics of upper central incisor, and to the best of our knowledge, there are no published reports on the biomechanical of mandibular first molar.目前,有许多应用舌侧技术成功矫治的临床报道以及有关上颌中切牙舌侧矫治的生物力学研究,但有关下颌第一恒磨牙舌侧矫治的生物力学研究,国内外文献尚未见报道。
5)maxillary first premolar上颌第一前磨牙
1.Correlation and regression analysis of crown and root measurements of maxillary first premolar;上颌第一前磨牙冠根测量值的相关和回归分析
2.Objective To investigate the morphology and the root canal system of the maxillary first premolars, and to provide reference for the endodontic treatment.目的探讨成都地区成人上颌第一前磨牙的解剖外形及其根管的形态特点,为牙体牙髓病的临床治疗提供理论依据。
3.Objective To investigate root canal curvatures of human maxillary first premolars in buccolingual di-rections.目的研究上颌第一前磨牙根管颊舌向的弯曲情况。
6)Maxillary first molar上颌第一磨牙
1.Analysis of stress in the periodontium of the maxillary first molar under the anchorage forces through three-dimensional finite element method;支抗力作用下上颌第一磨牙牙周膜应力的三维有限元分析
2.Construcion of three-dimensional finite element model of the maxillary first molar root system;运用Micro-CT技术建立上颌第一磨牙根管系统的有限元模型
3.The construction of the three-dimensional finite element model and analog analysis of the maxillary first molar after RCT;上颌第一磨牙根管预备后的有限元模型的建立和受力分析
延伸阅读
恒显圈与恒隐圈地球上不同纬度地区能看到的星座是不一样的。对于某一点，有些星座永远也看不到的；反过来呢，有些星座在那儿一年四季都看得见。对于一个地方来说，到底哪些星座看不到呢？这里有一个小窍门，假设一个地点的纬度是φ，那么赤纬小于-（90°-φ）的天体在这里就永远看不到。反之，凡是赤纬大于（90°-φ）的天体，在这里就总能看到。因此，在天文学上，赤纬（90°-φ）称之这一地区的“恒显圈”，而赤纬-（90°-φ）叫做该地区的“恒隐圈”。比如在北京，赤纬50°就是北京地区的“恒显圈”，位于赤纬50°以上的星星老是在天上，永远也不会落到地平线以下去。而赤纬-50°叫做北京地区的“恒隐圈”，位于赤纬-50°经南的星星北京永远也看不到。而在赤道上（纬度为0°），即使赤纬是 90°和-90°的天体也能看到，也就是说，赤道上没有“恒隐圈”，在赤道上各个位置的天体都能看得见。反之，在地球的南北极，则始终只能看到半个天空，另一半天空永远看不到，这两处拥有地球上最大的“恒隐圈”。
