Landmark | Definition |
---|---|
U1’ | The lowest point on the temporal side of the maxillary anterior alveolar ridge on the median sagittal plane |
U6L’ | The lowest point on the middle of the temporal alveolar ridge of the left maxillary first molar |
U6R’ | The lowest point on the middle of the temporal alveolar ridge of the right maxillary first molar |
U7L’ | The farthest and lowest point on the temporal alveolar ridge of the left maxillary second molar |
U7R’ | The farthest and lowest point on the temporal alveolar ridge of the right maxillary second molar |