Aesthetic Value of the Relationship between the Shapes of the Face and Permanent Upper Central Incisor

Table 2

Global agreement and kappa index for face and central incisor shapes and angles Fa (face) and Ta (incisor), and for the examiners’ classification and the classification generated by measurements.

	Examiner 1	Examiner 2	Examiner 3
Face and Central incisor shapes
Agreements Obs (%)	49	78	29
Kappa	0.23	0.67	−0.06
Examiners’ average (1–3)	52
Examiners’ classification and the classification by measurements
Face (Fa)
Agreements Obs (%)	36	48	48
Kappa	0.04	0.22	0.22
Central incisor (Ta)
Agreements Obs (%)	42	54	48
Kappa	0.13	0.31	0.22