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Table 1 Distribution and description of FD1 and FD2 values, crown-implant ratios, and sex difference between the implant failure and success groups

From: Evaluation of the peri-implant bone trabecular microstructure changes in short implants with fractal analysis

 Failure (n)Success (n)P valuePowerEffect size
SexWomen3870.0240.680.21
Men634
FD19
0.82 ± 0.28 (mean)
0.45 (min)–1.26 (max)
121
1.13 ± 0.25 (mean)
0.41 (min)–1.51 (max)
< 0.0010.991.45
FD29
0.97 ± 0.24 (mean)
0.61 (min)–1.36 (max)
121
1.13 ± 0.19 (mean)
0.41 (min)–1.51 (max)
0.0230.990.79
Crown-implant Ratio2
6.51 ± 3.89 (mean)
3.77 (min)–9.27 (max)
65
4.61 ± 1.58 (mean)
2.57 min)–10.67 (max)
0.1010.991.19
  1. FD1 fractal dimension 1 (0–1 months of follow-up), FD2 fractal dimension 2 (1–3 months of follow-up)