The SD rats were killed at 1, 2, 3, 4 weeks and mandibular molar teeth X-ray were taken.
方法建立大鼠根尖周炎动物模型，于术后1、2、3、4周取下颌骨组织，摄X线牙片、制作石蜡切片；
Objective: Statistical analysis of mandibular molar mesiodistal crown width and tooth length and development of root.
目的：统计分析下颌第一、第二、第三磨牙牙冠近远中宽度、牙体长度、分根情况以及相关因素。
Objective: To develop a new method for constructing database of standard artificial complete crown of mandibular molar.
目的：尝试构造标准人造全冠数据库的方法。
Most of which happened in mesiobuccal canal of maxillary molar and mesial canal of mandibular molar, accounting for 70.7%.
器械折断于上磨牙近颊根管和下磨牙近中根管者居多，占70.7%。器械折断在根管中下段多见，占70%。
We describe a case which highlights a serious complication of the use of an air rotor for the removal of a right second mandibular molar.
我们描述一个案件突出一个严重的并发症，使用空气转子清除有权下颌第二磨牙。
Clinical application of intermaxillary traction and fixed flat bite-plate could correct lingual inclination of mandibular molar effectively.
交互牵引结合固定平面导板是矫治下颌第一磨牙舌倾的有效方法。
Conclusion The hemisection can get satisfactory effect to repair the first mandibular molar with distal tooth reservated by selecting suitable tooth.
结论采用半切术技术保留下颌第一磨牙远中根的修复可获得满意效果。
Objective: to study the effects of different designs in single mandibular molar implant restoration on the stress distribution of implant-bone interface.
目的：分析单个下颌磨牙缺失时不同设计的种植修复的种植体-骨界面的应力分布情况。
Objective to study the influence of different shape of lower jaw on stress distribution at bone interface in the mandibular molar region of implant restoration models.
目的模拟单个下颌磨牙缺失的种植修复，分析不同下颌骨形态对种植体骨界面应力分布的影响。
Results: the sensory nerve is buccal nerve. The motor nerve is buccal branches of the facial nerve, which communicates with the buccal nerve in the 2nd and the 3rd mandibular molar region.
结果：颊肌粘膜瓣的感觉神经是颊神经，运动神经为面神经的颊支，其在第2、3磨牙相对的颊区与颊神经交通。
Objective:To evaluate the contribution of radiogram in diagnosis of primary vertical root facture in mandibular first molar.
目的：评价直接数字化影像技术在下颌第一磨牙牙根纵裂诊断中的作用。
A wisdom tooth is in humans any of the usually four third molars, including mandibular third molar and maxillary third molar.
人类的智齿就是第三大臼齿，通常有四颗，包括下颌第三磨牙和上颌第三磨牙。
Objective To investigate the displacements and the stress distributions of a mandibular second molar.
目的了解下颌第二恒磨牙不同载荷下近中移动时的位移及应力分布情况。
The fistula was connected with mandibular body but the first molar.
外斜线相连，与下颌第一磨牙根尖不相通连。
The fistula was connected with mandibular body but the first molar.
颊瘘与外斜线相连，与下颌第一磨牙根尖不相通连。
ObjectiveTo observe the effects of the two kinds of rigid fixed bridge design on the stress of the alveolar bone of mandibular first molar after hemisection.
目的观察下颌第一磨牙半切术后两种双端固定桥修复对牙槽骨应力分布的影响。
Mandibular first molar suffered from dental caries easily.
特别是在下颌第一恒磨牙。
Results All parameters of 14 teeth were achieved The parameter of TM in mandibular incisor was the highest and in mandibular first molar lowest.
结果得到右侧上下颌14颗牙的牙动度参数的正常范围，其牙动度参数的均值以下颌前牙最大，下颌第一磨牙最小。
Purpose: the purpose of this study was to investigate the feasibility and advantage of extracting the impacted mandibular third molar via resection of lingual bone plate.
目的：探讨经舌侧骨板切除术拔除下颌低位阻生第三磨牙的可行性及其优势。
The three dimensional finite element method models of the mandibular first molar was constructed on the computer, which had 63715 nodes and 41676 tetrahedrons elements.
在计算机上建立了下颌第一磨牙三维有限元模型，总节点为63 715个，4面单元数为41 676个。
Abstract: Objective: To analyze the correlation between the eruption status of the mandibular third molar and the distal caries in the mandibular second molar.
摘要目的：研究下颌第三磨牙萌出状态与第二磨牙远中邻面龋坏的相关性。
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。
Methods: with the help of the POWERSHAPE and ANSYS software, we established 3d dentition FEA models with right mandibular first molar missing and fixed partial denture.
方法：在POWERSHAPE及ANSYS软件的帮助下，建立右下第一磨牙缺失及局部固定义齿的三维有限元模型。
Ameloblastoma is usually locally invasive, bubbly mixed cystic and solid mass involving the posterior mandibular ramus associated with an unerupted 3rd molar tooth.
造釉细胞瘤通常有局部的侵蚀性，表现为多囊泡状改变和和实性的肿块，累及下颌支后部伴有未萌出的第三磨牙。
At 1st or 2nd molar region the mandibular canal was basically parallel with the inferior margin of the mandible.
而且，下颌神经管在下颌第一或第二磨牙区走行与下颌下缘基本成平行状。
Objective: to construct of 3-dimensional finite element models of mandibular first molar with structure defect restoration.
前言：目的：建立下颌第一磨牙牙体缺损及修复的三维有限元模型。
Objective: to construct of 3-dimensional finite element models of mandibular first molar with structure defect restoration.
前言：目的：建立下颌第一磨牙牙体缺损及修复的三维有限元模型。
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