TABLE 2

Quantitative measures collected from lateral cephalographs

Trait nameDefinition
Ar–GoLinear distance between Ar and Go
Ba–ArLinear distance between Ba and Ar
Ba–NLinear distance between Ba and N
Ba–PNSLinear distance between Ba and PNS
Ba–PrLinear distance between Ba and Pr
Ba–SLinear distance between Ba and S
Facial axisAngular measure between Ba–N plane and the line from foramen rotundum to Gn
Facial taperAngular measure between mandibular plane (Go–Me) and N–Pog plane
Facial depthAngular measure between Frankfort horizontal and facial plane
Go–MeLinear distance between Go and Me
Go–Gn–SNAngular measure between Go–Gn plane and S–N plane
Gonial angleAngular measure from Ar to Go to Me
Interincisal angleAngular measure between axis of upper and lower central incisors
N–PNSLinear distance between N and PNS
N–PrLinear distance between N and Pr
N–S–BaAngular measure from N to S to Ba
N–S–PNSAngular measure from N to S to PNS
Neuropc1Neurocranial principal component 1 score
Neuropc2Neurocranial principal component 2 score
Neuropc3Neurocranial principal component 3 score
Occ–SAngular measure between occlusal plane and S–N plane
PNS–PrLinear distance between PNS and Pr
Posterior condylionLinear distance between S and PCd
Posterior facial heightLinear distance from Go to CF
PrNIdAngular measure from Pr to N to Id
S–N–PrAngular measure from S to N to Pr
S–NLinear distance between S and N
S–PNSLinear distance between S and PNS
S–PrLinear distance between S and Pr
S–X60Linear distance between S and X60
S–X70Linear distance between S and X70
S–X80Linear distance between S and X80
S–X90Linear distance between S and X90
S–X100Linear distance between S and X100
S–X110Linear distance between S and X110
S–X120Linear distance between S and X120
S–X130Linear distance between S and X130
S–X140Linear distance between S and X140
S–X150Linear distance between S and X150
S–X160Linear distance between S and X160
S–X180Linear distance between S and X180
SNDAngular measure from S to N to D
SNIdAngular measure from S to N to Id