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Less usual cephalometric variables: 1. Nasolabial angle (0); 2. Soft tissue convexity (0); 3. Upper lip length (mm); 4. Upper lip protrusion (mm); 5. Lower lip protrusion (mm); 6. Upper lip thickness (mm); 7. Lower lip thickness (mm); 8. Interlabial gap (mm); 9. Upper lip-E (mm); 10. Lower lip-E (mm); Line E (Ricketts esthetic plane)
