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. 2021 Dec 31;2021(12):CD003453. doi: 10.1002/14651858.CD003453.pub2

1. Abbreviations and measures used to assess outcomes.

1.    Relationship of the top front teeth (incisors) to the upper jaw (maxilla)
U1‐CT (°) Angle formed between the upper incisor axis and the CT horizontal plane
U1–Vp Distance from the vertical plane to the upper incisor crown tip
U1–CT Distance from the CT horizontal plane to the upper incisor crown tip
2.    Relationship of the top back teeth (molars) to the upper jaw (maxilla)
U6–CT (°) Angle formed between the upper first molar axis and the CT horizontal plane
U6d–Vp Distance from the vertical plane to the upper first molar distal point
U6–CT Distance from the CT horizontal plane to the upper first molar mesiobuccal crown tip

A‐P: antero‐posterior; APog: A‐point to pogonion line; SN: sella‐nasion