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- Small and superficial occlusal surface defect ,proximal and labial surface defect uninvolved incisal angle . 2 .;合面缺损范围小而且表浅，前牙邻、唇面缺损未涉及切角者，不宜用嵌体修复。
- The orthodontist's goal was to align gingival levels, upright the maxillary and mandibular incisors, and improve the incisal angle. 正畸医生的目标是调整牙龈的水平，直立上前牙和下前牙，调整切牙的角度。
- Serious tooth defect which involved cuspid,incisal angle,marginal ridge and occlusal surface can't be filled and need occlusal reconstruction. 各种严重的牙体缺损已涉及牙尖、切角、边缘嵴以及合面，需要咬合重建而不能使用一般充填修复者。
- Space for restorations was created by intruding and uprighting the worn and migrated teeth and developing the correct incisal angle (Figure 8). 修复的空间被通过压低前牙和直立磨耗的和移位的牙齿获得。并且形成了正确的切角。
- One line cuts another at right angles. 一条线与另一条线成直角相交。
- The angles of a triangle total 180. 三角形的三角之和等于180°。
- A polygon whose angles are equal. 等角多边形各角都相等的多边形
- A polygon with ten angles and ten sides. 十边形有十个角和十条边的多边形
- A four-sided plane figure with four right angles. 矩形，长方形具有四个边的方形，有四个直角
- A plane figure with four sides and four angles. 四边形有四个边和四个角的平面图形
- At right angles to a vertical line. 横的与垂直线成90度角的
- Intersecting at or forming right angles. 成直角的，垂直的交叉成直角的，或形成直角的
- incisal angles [医] 切角
- A polygon having five sides and five interior angles. 五边形有五条边和五个内角的多边形
- He tried to attack the problem from different angles. 他试著从各个角度来著手解决这个问题。
- We approach the problem from different angles. 我们从不同角度探讨这一问题。
- Streets usually intersect at right angles. 马路通常以直角交叉。
- They probed into the subject from different angles. 我们从不同角度对这个问题进行了探讨。
- Keywords maxillary anterior;incisal angle;odonto defect;porcelain laminate veneer; 上颌前牙;切角;牙体缺损;小瓷贴面;
- A rectangle has four right angles. 一个矩形有四个直角。
