Last premolar of upper jaw, first molar of lower jaw.
上颚最后的一只前臼齿，下颚最前的一只臼齿。
Absence of a third or a fourth premolar or of one molar.
缺少一个第三或者一个第四前臼齿或者一个臼齿。
Carnassial: Last premolar of upper jaw, first molar of lower jaw.
裂齿：上颚最后的一只前臼齿，下颚最前的一只臼齿。
Absence of more than two first premolars or absence of a first and a second premolar.
缺少超过两个第一前臼齿或者一个第一和一个第二前臼齿。
The retention of the clasp on molar is greater than premolar in the same condition of undercut.
相同倒凹条件下，磨牙卡环的固位力比前磨牙卡环大。
The retention of the clasp on molar is greater than premolar in the same condition of undercut.
相同倒凹深度上，磨牙金合金卡环固位力比前磨牙大。
Objective to evaluate the effect of autotransplantation of impacted anterior tooth and premolar.
目的评价自体牙移植的临床效果。
Objective the aim of this study was to investigate the root canal system of maxillary first premolar .
目的观察离体上颌第一前磨牙根管解剖结构。
Objective To construct the fine 3d model of the maxillary first premolar for finite element analyzes (FEA).
目的建立上颌第一前磨牙的精细三维模型，并最终应用于有限元分析(FEA)。
"It was clear that while the premolar was broadly humanlike, it wasn't from a modern human," Brown recollects.
布朗回忆道：“看得很清楚，虽然那颗前臼齿大体而言像人牙，可绝不是现代人的牙齿。”
The retention of gold alloy clasp on the molar was greater than that on the premolar in the same condition of undercut.
相同倒凹深度上，磨牙金合金卡环固位力比前磨牙大。
The retention of gold alloy clasp on the molar was greater than that on the premolar in the same condition of undercut.
相同倒凹条件下，磨牙卡环的固位力比前磨牙卡环大。
Conclusion: The defect treatmen of glass fiber post in a single premolar tooth root canal can achieve satisfactory results.
近年来，作者采用玻璃纤维桩进行前磨牙牙体缺损的修复，取得了良好的临床效果。
Study of the stress distribution of premolar under loading by laser real time holographic method is introduced in this paper.
本文介绍了激光实时全息法用于双尖牙受力分析的研究。
Objective:To compare the changes in third molar position in patients treated with second molar and first premolar extractions.
目的：比较正畸治疗中拔除第二磨牙与拔除第一前磨牙后第三磨牙牙胚位置的不同改变。
Three-dimensional finite element analysis of the stress of the mandible premolar under loading on its traumatic occlusal spots.
下颌前磨牙创伤咬合点加载的三维有限元应力分析。
A tooth adapted for tearing apart flesh especially one of the last upper premolar or first lower molar teeth in carnivorous mammals.
裂齿，食肉齿适合于撕裂肉的牙齿，尤指食肉哺乳动物最后上前臼齿之一或第一个下臼齿。
AIM: To study the expression of vasoactive intestinal polypeptide (VIP) in dental pulp-dentine complex of human premolar and its function.
目的：研究血管活性肠肽(VIP)在牙髓牙本质复合体中的表达，探讨其功能。
When occlusion by molar and premolar of fracture part, the stress of upper fracture part was bending force and the lower was compressing force.
患侧磨牙、前磨牙咬合骨断层应力分布下部为张力带、上部为压力带。
In this article, we describe the autotransplantation of a supplemental premolar to replace an extracted first permanent molar in a 12-year-old boy.
在本文中，我们描述了自体补充臼齿以取代提取第一恒磨牙在12岁的男孩。
Unfortunately, the fourth premolar in the upper jaw is quite large and looks like the first molar in the lower jaw; it is known as a carnassial tooth.
不幸的是，上颚的第四颗前臼齿很大，看起来就象是下颚的第一颗臼齿，这颗前臼齿也被称作叫裂齿。
Abstract: Objective to investigate the canal morphology of maxillary first premolar using cone-beam ct (CBCT) and to know its generic and variant forms.
摘要目的采用锥形束ct (CBCT)探讨上颌第一前磨牙根管的解剖形态，了解其常规形态及变异形态。
Conclusion the fracture strength of premolar teeth filled with light curing composite resin was higher than filled with amalgam after root canal therapy.
结论根管治疗后用光固化树脂充填前磨牙的各类洞，牙体的抗折强度优于用银汞充填者。
We must use double abutments when the bone of premolar is re- duced. But molar can be selected as abutment even if its bone level was absorbed seriously.
磨牙可以适当放宽基牙选择的适应症，对于牙槽骨吸收至根分歧甚至更低的磨牙在保证牙周卫生、控制炎症的基础上仍可考虑作为固定桥的基牙。
The third premolar and the first molar of miniature pigs inclinate mesially, and are similar with the first premolar and the first molar of the human beings.
第三前磨牙与第一磨牙长轴为近中倾斜，与人类第一前磨牙和第一磨牙近似。
Conclusion: Mandibular second premolar after pulling, the third molar eruption clearance increased obviously, conduce to the jaw third molar normal eruption.
结论：拔除下颌第二前磨牙后，第三磨牙萌出间隙明显增大，有助于下颌第三磨牙的正常萌出。
Objective: to provide morphological basis for dental aging and senile teeth diseases and to study age-related changes of pulp-dentin complex of human premolar.
目的：研究人前磨牙牙髓牙本质复合体的增龄性变化，探讨牙衰老和老年牙病的形态学基础。
Conclusion Both periapical films in bisecting Angle technique and in distant paralleling technique can reflect the real teeth length precisely in premolar area.
结论前磨牙区的分角投照根尖片和平行投照根尖片均能精确反映牙齿的实际长度。
Conclusion Both periapical films in bisecting Angle technique and in distant paralleling technique can reflect the real teeth length precisely in premolar area.
结论前磨牙区的分角投照根尖片和平行投照根尖片均能精确反映牙齿的实际长度。
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