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Table 3 Method error according to Dahlberg’s formula

From: Angular photogrammetric analysis of the soft tissue profile in 12-year-old southern Chinese

Parameter Method error (°)
Nasofrontal 0.76
Vertical Nasal 0.3
Nasolabial 2.5
Labiomental 2.76
Nasal angle 2.52
Cervicomental 0.5
Medium facial third 0.28
Inferior facial third 0.38
Angle of head position 0.25
Facial convexity 0.44
Total facial convexity 0.45
Glabella-pogonion vertical 0.11