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Table 5 Multiple linear regression analysis of the correlation between bone condition and implant placement accuracy parameters

From: Influence of bone condition on implant placement accuracy with computer-guided surgery

  BL-LP MD-LP BL-LA MD-LA VP VA
Bone density (B) − 0.39 − 0.50* − 0.46 − 1.05** − 0.61* − 0.79**
(I) [− 0.84, 0.06] [− 0.95, − 0.05] [− 0.97, 0.04] [− 1.55, − 0.55] [− 1.08, − 0.15] [− 1.28, − 0.30]
Bone width (B) − 0.50 − 0.55 − 0.68* − 0.33 − 0.61* − 0.65*
(I) [− 1.04, 0.03] [− 1.08, − 0.01] [− 1.28, − 0.07] [− 0.93, 0.27] [− 1.16, − 0.05] [− 1.23, − 0.06]
Cortical bone thickness (B) − 0.28 − 0.20 − 0.38 − 0.28 − 0.32 − 0.41
(I) [− 0.77, 0.21] [− 0.69, 0.29] [− 0.94, 0.17] [− 0.83, 0.27] [− 0.83, 0.19] [− 0.95, 0.13]
R2 0.13 0.16 0.17 0.31 0.21 0.26
Overall p value 0.099 0.051 0.045 0.001 0.016 0.004
  1. B: coefficient; 95% confidence intervals in brackets; confidence level *p < 0.05, **p < 0.01
  2. BL bucco-lingual, LP linear deviation at the implant platform, LA linear deviation at the implant apical, MD mesio-distal, VP vertical deviation at the implant platform, VA vertical deviation at the implant apical