Purpose To analyse the characteristics of mandibular incisor point chewing movement on frontal plane orbit in youth of normal occlusion.(目的分析正常(牙合)青少年下颌切点额状面咀嚼运动轨迹的特征。)
Objective: To develop a new method of computer aided design (CAD) of veneer on maxillary incisor.(目的：尝试上颌中切牙贴面计算机辅助设计(CAD)方法。)
The overlap range of impacted canine and the root of incisors can't be used as an indicator of the extent of the incisor root resorption.(不能依靠曲面断层片上阻生牙牙冠与邻牙牙根的重叠范围来判断是否存在切牙的牙根吸收及吸收程度。)
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。)
Management involved positioning the canine teeth into the central incisor region and placing porcelain veneers on these teeth.(管理参与定位犬齿到区域中切牙瓷贴面，把这些牙齿。)
We did a prophylaxis and a little periodontal therapy, bleaching, and a porcelain veneer for the left central incisor.(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。)
By using the finite element method (FEM) software, the vibration of 3-d finite element model of maxillary central incisor tooth was analyzed.(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。)
Incisor teeth into the cat and canine and the molars.(猫的牙齿分为门齿、犬齿和臼齿。)
The tendency of the maxillary incisor movement was a lingual-rooted, distal-rooted and extrude-crowned movement.(牙体的运动趋势表现为牙根舌向移动、牙根远中倾斜和牙冠伸长的复合运动趋势。)
The central zone of tensile stress moved to the frenal notch from the pre palate and palatal side of the denture incisor of the base;(拉应力集中区由基托前腭部、前牙腭侧移动到唇系带切迹区；)
