表 1. 工况力值的设定.
Tab 1 Setting working condition
| 工况名称 | 施力部位 | 力值大小/N | 施力方向 |
| 上唇压力 | 上唇软组织与牙槽突交界区 | 7.16 | 垂直于牙槽突前表面 |
| 腭部瘢痕力 | 腭板软硬组织交界区 | 17.52 | 由前向后，由外向内 |
| 上颌扩弓力 | 双侧上颌第一前磨牙、第一磨牙牙槽嵴顶区 | 4.9 | 平行于 平面水平向两侧 |
| 上颌前牵引力 | 双侧上颌尖牙牙槽嵴顶区 | 4.9 |
平面前下30° |
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