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Table 3 Mean fracture strength (N) of the IP and control groups in the three clinical CIR subgroups

From: Effect of crown to implant ratio and implantoplasty on the fracture resistance of narrow dental implants with marginal bone loss: an in vitro study

Group CIR1 CIR2 MD (95% CI) Adjusted P value
Control 2:1 2.5:1 460.94 (242.27–679.60) < .001*
3:1 669.60 (450.94–888.27) < .001*
2.5:1 3:1 208.67 (− 9.99 to 427.33) .064
IP 2:1 2.5:1 590.02 (371.36–808.68) < .001*
3:1 745.75 (527.09–964.41) < .001*
2.5:1 3:1 155.73 (− 62.93 to 374.39) .206
Total 2:1 2.5:1 525.48 (363.58–687.38) < .001*
3:1 707.68 (545.78–869.57) < .001*
2.5:1 3:1 182.20 (20.30–344.10) < .001*
  1. *Statistically significant difference
  2. MD mean difference (CIR1—CIR2)