Table 3: Method error in linear and angular measurements according to Dalhberg’s Formula.

Parameters Method Error
Superior facial third 1.4141
Middle facial third 0.8475
Inferior facial third 1.1517
Nasal length 0.9925
Length of upper lip 0.5292
Interlabial gap 0.1
Length of lower lip 0.3873
Vermilion of upper lip 0.3536
Vermilion of lower lip 0.2646
Height of chin 0.8944
Height of nasal tip 0.3317
Facial depth 2.2583
Nasal depth 0.866
Nasal Prominence 0.781
Subnasal depth 0.9849
Mentolabial depth 1.2981
Prominence of upper lip 1.0464
Prominence of lower lip 1.1597
Prominence of chin 1.3638
Canut's nasal prominence 0.4637
Canut's prominence of upper lip 0.4243
Canut's prominence of lower lip 0.3317
Canut's prominence of pogonion 0.3082
Nasofrontal angle 1.253
Vertical nasal angle 0.7842
Nasolabial angle 2.5652
Mentolabial angle 2.0555
Nasal angle 1.4509
Angle of the nasal dorsum 2.0075
Cerviconmental angle 1.3454
Angle of the medium facial third 0.495
Angle of the inferior facial third 0.6671
Angle of the head position 1.084
Angle of facial convexity 1.2
Angle of total facial convexity 0.7681
Lower face - face height 0.5196
Mandible - face height 0.5
Mandible - upper face height 1.3115
Mandible - lower face height 0.6364
Intercanthal distance 0.6245
Pupil midface distance 0.2739
Nasal base width 0.5916
Mouth width 0.946

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