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Table 2 Comparison of peri-implant clinical parameters between the NKM and KM group

From: The lack of keratinized mucosa is associated with poor peri-implant tissue health: a cross-sectional study

 NKM group (N = 32)KM group (N = 380)p
Min – MaxMean ± SDMin – MaxMean ± SD
mPLI0.00 - 0.670.18 ± 0.250.00 - 2.000.15 ± 0.350.073
mSBI0.00 - 1.330.25 ± 0.400.00 - 2.670.31 ± 0.460.446
PD1.67 - 4.672.74 ± 0.641.67 - 8.002.83 ± 0.770.601
RE-0.33 - 1.670.17 ± 0.45-1.00 - 2.330.03 ± 0.260.050
BL0.25 - 4.211.18 ± 1.430.20 - 7.740.77 ± 1.040.490
  1. KM Keratinized mucosa, NKM Non-keratinized mucosa, mPLI modified plaque index, mSBI modified sulcus bleeding index, PD probing depth, RE recession, BL Interproximal bone level, Min minimum, Max maximum, p significance