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Table 1 Residual stain scores of the surgical (a) and non-surgical approach (b)

From: Location of unaccessible implant surface areas during debridement in simulated peri-implantitis therapy

  TT AT BT M R
a) Surgical approach 4.29 ± 0.44 A 1.70 ± 0.92 B 3.79 ± 0.89 C 5.58 ± 0.43 D 5.41 ± 0.67 E
4.50 (0.50) 1.50 (1.00) 3.75 (1.25) 5.50 (0.50) 5.50 (1.00)
b) Non-surgical approach 4.43 ± 0.61 A 1.65 ± 0.74 B 2.42 ± 1.11 C 4.76 ± 1.09 D  
4.44 (0.50) 1.50 (1.00) 2.19 (2.00) 5.00 (2.00)  
  1. Means ± standard deviations and medians (interquartile ranges), the latter in the second lines
  2. Scores were ranging from 1 (residual stain >95%) to 6 (residual stain <5%)
  3. TT Tip of the threads, AT Apically facing thread surfaces, BT Area between threads, M Machined surface area, R Rough shoulder area
  4. Different capitals indicate groups with statistically significant differences (p < 0.001 for all comparisons except M vs. R where p = 0.01), as assessed by pairwise Wilcoxon-rank-sum-tests with p-value adjustments for multiple comparisons according to Holm
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