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Table 5 For detect differences of survival rate, success rate, marginal bone loss, and stability among length of implants

From: Retrospective clinical study of ultrawide implants more than 6 mm in diameter

Length (mm) 7.0 8.0 10.0 12.0 P value
N Mean SD N Mean SD N Mean SD N Mean SD
Survival rate 6 100 % 0.00 21 100 % 0.00 23 100 % 0.00 8 87.50 % 0.35 NS
Success rate 6 100 % 0.00 21 95.24 % 0.22 23 95.65 % 0.21 8 87.50 % 0.35 NS
Primary stability 6 77.33 9.77 21 72.14 10.10 23 75.52 9.27 8 65.25 7.40 +
Secondary stability 6 84.42 3.50 17 76.85 8.59 17 78.97 8.45 7 69.43 9.48 +
Marginal bone loss
 12 months 5 0.00 0.00 21 0.02 0.10 21 0.00 0.00 7 0.08 0.20 NS
 24 months 4 0.00 0.00 16 0.00 0.00 16 0.03 0.09 6 0.25 0.60 NS
 Marginal bone lossa 6 0.00 % 0.00 21 4.76 % 0.22 23 4.35 % 0.22 8 12.50 % 0.35 NS
  1. NS nonsignificant
  2. aAbove annually 0.2 mm until final follow-up date
  3. +Kruskal-Wallis test is significant at the 0.05 level (two-tailed)