Table 7 Univariate and multivariable binary logistic regressions for cortical bone perforation or invasion of the 2 mm secure distance from the surrounding anatomical structures (in relation to no perforation), for bone-driven implant position

Sex

 Male

1

1

 Female

2.633 (2.040, 3.398)

< 0.001

1.147 (0.767, 1.715)

0.504

Age

1

 Increase by 1 year

0.997 (0.989, 1.006)

0.558

-

Tooth region

 Cental incisor

1

1

 Lateral incisor

0.277 (0.187, 0.413)

< 0.001

0.161 (0.093, 0.277)

< 0.001

 Canine

0.152 (0.104, 0.223)

< 0.001

0.136 (0.069, 0.267)

< 0.001

LCA

1

1

 Increase by 1 degree

0.916 (0.900, 0.933)

< 0.001

0.943 (0.920, 0.966)

< 0.001

LCD

1

1

 Increase by 1 mm

1.150 (1.052, 1.256)

0.002

1.122 (0.984, 1.278)

0.085

MBBH

1

1

 Increase by 1 mm

1.086 (1.048, 1.125)

< 0.001

0.798 (0.741, 0.860)

< 0.001

TT

1

 Increase by 1 degree

1.009 (0.997, 1.021)

0.128

-

MBT0

1

1

 Increase by 1 mm

0.284 (0.246, 0.328)

< 0.001

0.255 (0.192, 0.338)

< 0.001

MBT4

1

1

 Increase by 1 mm

0.502 (0.459, 0.550)

< 0.001

1.011 (0.808, 1.264)

0.924