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Table 2 Horizontal facial hard and soft tissues and mucosal contour changes following immediate implant placement

From: CBCT analysis of the tissue thickness at immediate implant placement with contour augmentation in the maxillary anterior zone: a 1-year prospective clinical study

Measurement Preoperative 1 year after prosthesis connection P-value*
Median (Min; Max) mm Mean (SD) mm Median (Min; Max) mm Mean (SD) mm
Test group (n=10)
 BW PL0 2.85 (0.6; 3.0) 2.71 (0.42) 1.90 (1.3; 3.3) 2.21 (0.57) 0.019
PL2 2.40 (1.6; 3.1) 2.36 (0.42) 2.10 (1.5; 3.4) 2.26 (0.57) 0.474
 GW PL0 1.25 (0.8; 1.5) 1.19 (0.21) 2.60 (2.0; 3.2) 2.56 (0.30) 0.005
PL2 1.35 (0.9; 1.7) 1.37 (0.26) 2.65 (2.1; 2.8) 2.57 (0.24) 0.005
 TW PL0 3.85 (3.1; 4.8) 3.90 (0.46) 4.80 (3.6; 5.7) 4.77 (0.61) 0.005
PL2 4.00 (2.6; 4.3) 3.73 (0.57) 4.80 (3.6; 6.0) 4.83 (0.68) 0.005
Control group (n=10)
 BW PL0 2.30 (1.2; 3.9) 2.28 (0.76) 1.75 (1.2; 2.7) 1.81 (0.40) 0.021
PL2 2.00 (0.9; 3.9) 2.03 (0.75) 2.00 (1.0; 3.0) 1.97 (0.53) 0.720
 GW PL0 1.25 (0.9; 2.3) 1.43 (0.45) 1.35 (0.9; 2.2) 1.44 (0.40) 0.887
PL2 1.50 (1.1; 1.9) 1.53 (0.26) 1.60 (1.0; 2.1) 1.56 (0.34) 0.524
 TW PL0 4.05 (2.1; 5.1) 3.71 (0.96) 3.25 (2.1; 4.3) 3.25 (0.68) 0.049
PL2 3.65 (2.3; 5.4) 3.56 (0.85) 3.50 (2.1; 4.7) 3.53 (0.82) 0.905
  1. *Wilcoxon signed-rank test; a significance level of 0.05 was used.
  2. PL0 Implant platform level, PL2 2 mm Apical to the implant platform level, BW The horizontal distance from the implant surface to the facial bone surface, GW The horizontal width of the soft tissue, TW The sum of BW and GW