Table 12. Comparative table between Kvaal’s variables in the original study, Kvaal’s variables in this study and the new variables.

Teeth	Kvaal’s R2	Study’s R2 Kvaal’s variables	Study’s R2	Kvaal’s SEE	Study’s SEE Kvaal’s variables	Study’s SEE
11/21C	0.70	0.15	0.18	9.50	12.64	12.55
11/21S		0.39	0.41		10.63	10.57
12/22C	0.67	0.11	0.23	10.0	13.41	12.74
12/22S		0.24	0.30		12.47	12.12
13/23C		0.17	0.17		12.60	12.59
13/23S		0.11	0.12		13.01	12.98
33/43C	0.56	0.03	0.07	11.5	13.88	13.65
33/43S		0.15	0.16		13.14	13.06