upper fixed jaw face

例句：

1. 1. The upper fixed jaw face of the patient was severely injured.
   患者的上颚固定面严重受伤。
2. 2. The dentist examined the upper fixed jaw face and found a small crack in the tooth.
   牙医检查了患者的上颚固定面，发现牙齿上有一个微小的裂缝。
3. 3.During the surgery, the surgeon carefully removed the upper fixed jaw face to repair the damaged bone.
   在手术过程中，外科医生小心翼翼地切除了上颚固定面以修复受损的骨骼。