第一恒磨牙,first permanent molar
1)first permanent molar第一恒磨牙
1.Analysis of the first permanent molar caries epidemiological investigation in area of northeast China;东北地区人群第一恒磨牙龋病流行病学调查分析
2.A survey analysis of caries about the first permanent molars of students in elementary school and middle school in Urumqi;乌鲁木齐市中小学生第一恒磨牙患龋情况调查分析
3.Treatment of maxillary first permanent molar ectopic eruption with slingshot molar distalization appliance;弹弓式磨牙远移器治疗上颌第一恒磨牙异位萌出
英文短句/例句

1.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
2.Analysis of Orthodontic Therapy after Extraction of the First Molars;拔除第一恒磨牙正畸治疗的临床分析
3.In one mouth, the teeth of one side were as test group, other side as control group, the first molar in non-carious pit and fissure of 500 children were sealed.方法:将500例儿童的第一恒磨牙分为两组,一侧第1恒磨牙为一组,对侧同名牙为第2组。
4.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
5.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
6.Caries incidence of the first permanent molars of the primary school students in Haidian District,Beijing北京市海淀区小学生第一恒磨牙龋病调查
7.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
8.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
9.Treatment of Vertical Impacted Mandibular First Molar with a Dentigerous Cyst含牙囊肿致下颌第一恒磨牙垂直阻生的正畸治疗
10.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
11.First Molar Pit and Fissure Caries Epidemiological Investigation and Evaluation of Pre-treatment Technology第一恒磨牙龋病流行病学调查和窝沟封闭预处理技术评价
12.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
13.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
14.Relationship between oral health instruction and caries prevalence rate of first permanent molars in school age children in Changchun长春地区学龄儿童第一恒磨牙患龋率与口腔卫生宣教关系调查
15.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
16.At the time of birth, the crowns of the primary teeth (baby teeth) are almost complete and the chewing surfaces of the permanent molars are forming.在出生的时候,第一套牙(乳牙)的牙冠已基本发育完全,恒磨牙的咀嚼面也已形成。
17.Clinical Researches of C-shaped Root Canals in Second Mandibular Molars;下颌第二恒磨牙C形根管的临床探讨
18.A Study on the Root Canal Taper of Mandibular First Premolars of Chinese with Single-canal52颗中国人单根管下颌第一恒前磨牙根管锥度值测量
相关短句/例句

First molar第一恒磨牙
1.Analysis of vertical medial root fracture of the first molar;上、下颌第一恒磨牙近中根纵裂73例分析
3)the first permanent molar第一恒磨牙
1.An epidemiological survey of caries about the first permanent molars in students of elementary schools and middle schools in shenyang;沈阳市中小学生第一恒磨牙龋病调查分析
2.Relationship of Caries Experience Between Primary Teeth and the First Permanent Molars in 100 Children of6-year-old;100例6岁儿童乳牙患龋与第一恒磨牙患龋关系的研究
4)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
5)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。
6)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。
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”。