Table 9. Linear regression formulae created, based on the best models.

Group of teeth	Linear regression formulae
11/21CRR,RT,RP	- 484.166 - 526.419(C_RP) + 363.717(C_RT) + 764.473(C_RR)
11/21SCind,RP	122.790 - 45.001(S_RP) - 93.512(S_Cind)
12/22CCind,RR,Aind,Bind	84.756 - 41.578(C_RR) - 54.754(C_Aind) + 76.288(C_Bind) - 69.786(C_Cind)
12/22SRP,Aind,RT,RR	- 471.280 - 443.654(S_RP) + 326.338(S_RT) + 726.234(S_RR) - 75.834(S_Aind)
13/23CCind,RP	90.821 - 26.662(C_RP) - 85.065(C_Cind)
13/23SBind,RR	82.781 - 37.746(S_RR) - 43.978(S_Bind)
33/43CG,Aind	63.380 - 5.723(G) - 45.449(C_Aind)
33/43SG,Bind,RR	90.037 - 4.852(G) - 33.203(S_RR) - 43.764(S_Bind)