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Identification of intervals regarding the spatial evaluation of the upper jaw with respect to the plane coursing the Anterior Nasal Spine (ANS). This spatial value is defined as Maxilla (MX).
| MX Value | |
|---|---|
| Class II | <3.2 mm |
| Intermediate MX | 3.2–4 mm |
| Mixed | 4–6 mm |
| Class III | >6 mm |
