英语语法分析

Objective To investigate root canal curvatures of human maxillary first premolars in buccolingual directions.

目的研究上颌第一前磨牙根管颊舌向的弯曲情况。

The segments had the biomechanical properties of osteoporosis. 100 N and 30 N loads were applied along the implant axial(AX) and buccolingual(BL) directions respectively.

对种植体轴向和颊舌向分别施加100 N和30 N的力，评估皮质骨和松质骨的最大应力和种植体-基台复合体的最大位移。

Results: The geometric feature parameters of 28 artificial teeth in their own coordinates were obtained, including the mesiodistal and buccolingual dimension, the height and inclination of cusp.

结果：得到28颗人工牙的颊舌径、近远中径、牙尖高度、中央窝深度、牙尖平衡斜面斜度的数据。