上颌中切牙的短根牙比例相当高。
The rate of short root was high in maxillary central incisors.
以上颌中切牙为解剖学基础建立了三维有限元模型。
This paper presents the development of a three dimensional finite element model of central maxillary incisor.
管理参与定位犬齿到区域中切牙瓷贴面，把这些牙齿。
Management involved positioning the canine teeth into the central incisor region and placing porcelain veneers on these teeth.
目的：尝试上颌中切牙贴面计算机辅助设计(CAD)方法。
Objective: To develop a new method of computer aided design (CAD) of veneer on maxillary incisor.
结论：RE主要增加前段牙弓宽度，以中切牙间距离最明显。
Conclusions: RE expanded anterior arch width especially the distance of mid-anterior.
目的研究在计算机上建立上颌中切牙的三维有限元数学模型。
Objective To discuss Construction of the three-dimensional finite element model of maxillary central incisor by using ct scanning technique.
结果2 2单位采用内染色技术再现上颌中切牙色彩是成功的。
Results The 22 cases were successful in expressing the typical color type of maxillary central incisors using intemal live stain technique.
计算13种力系统下的上中切牙位移、转动中心及牙周应力分布。
The displacement, the position of the rotation center and the stress distribution of PDL were analyzed under 13 types of loading force system.
本研究以上颌中切牙天然牙为解剖学基础建立了三维有限元模型。
A three-dimensional finite element model was built by using central maxillary incisor as its anatomical basis.
目的了解正常上颌中切牙牙根不同截面根管周壁厚度及根管面积和形态。
Objective To measure the thickness of the wall of root canal and root canal area in different cross sections of maxillary central incisors.
我们做了一些预防工作和牙周病治疗，漂白，为左上中切牙做了瓷贴面。
We did a prophylaxis and a little periodontal therapy, bleaching, and a porcelain veneer for the left central incisor.
摘要目的评价替牙早期上颌阻生中切牙矫治过程中的支抗控制及矫治要点。
Abstract: Objective to evaluate anchorage methods applied to the patients for the treatment of maxillary impacted central incisors in the early mixed dentition.
在三维有限元模型的基础上，利用有限元分析软件对上颌中切牙的振动模态进行了分析。
By using the finite element method (FEM) software, the vibration of 3-d finite element model of maxillary central incisor tooth was analyzed.
目的探讨将脉搏血氧饱和度测定仪用于检测中切牙牙髓血氧饱和度以判定牙髓活力的可行性。
Objective To discuss the feasibility of examining the saturation of oxygen in blood of pulp using pulse oximeter in order to judge the pulp vitality.
案件报告中，两名常任异位上颌犬齿绕过侧门，并造成了广泛的骨吸收两个上颌中切牙牙齿。
A case is reported in which two ectopic maxillary permanent canine teeth bypassed the lateral incisors and caused extensive resorption to both maxillary central incisor teeth.
左中切牙上的烤瓷熔覆合金冠，可以使大多数牙科学校的辅导老师或保险顾问临床接受（图7）。
The porcelain-fused-to-metal crown on the left central incisor would be found to be clinically acceptable by most dental school instructors or insurance consultants (Fig. 7).
恒牙萌出于6岁左右，开始于第一恒磨牙以及下颌第一中切牙。这个过程一直持续到将近21岁。
Permanent teeth begin appearing around age 6, starting with the first molars and lower central incisors. This process continues until approximately age 21.
结果缺牙部位最常见的是下颌中切牙、上颌侧切牙和下颌侧切牙，以少数牙缺失为主，女性多于男性。
Results mandible central incisor, maxillary lateral incisor and mandible lateral incisor were most missing teeth, and there were more females than males.
方法作者1995～ 1998年间采用内染色技术为2 2单位行金属烤瓷修复的患者再现上颌中切牙的色彩。
Methods The author used the internal live stain technique to restore the color of maxillary central incisors for 22 patients between 1995 and 1998.
目的：对多曲方丝弓技术中打开咬合所产生的力学系统进行有限元分析，了解多曲方丝弓打开咬合时下颌中切牙牙周膜应力分布情况。
Objective:The purpose of this article is to study the force system that produced by multi-loop edgewise arch wire while opening the bite.
本文通过技工操作和临床实例详细介绍了利用内染色瓷粉表现年轻中切牙典型色彩特点的技术，并对内染色技术的优缺点和适应范围进行了讨论。
This article introduces in detail the technique to reproduce the typical shades of young central incisors with internal live stain powder and discusses its advantages, shortcomings...
本文通过技工操作和临床实例详细介绍了利用内染色瓷粉表现年轻中切牙典型色彩特点的技术，并对内染色技术的优缺点和适应范围进行了讨论。
This article introduces in detail the technique to reproduce the typical shades of young central incisors with internal live stain powder and discusses its advantages, shortcomings...
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