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Table 3 Alveolar ridge width reduction

From: The effect of membrane exposure on lateral ridge augmentation: a case-controlled study

Groups Grafted ridge width Ridge width at the re-entry Grafted ridge reduction (mm)
Exposed (test) 9.7 ± 0.9 5.0 ± 1.4 4.7 ± 1.4
Non-exposed (control) 9.1 ± 0.8 6.0 ± 1.1 3.1 ± 0.9
Fisher-Pitman p = 1.00 p = 0.260 p = 0.030
  1. The residual alveolar ridge width plus graft width was measured at the crestal level at the entry and re-entry procedure. In the test and control group, the mean of the grafted width was 9.7 and 9.1 mm, respectively. Graft reduction was 4.7 and 3.1 mm for the test and control group, respectively. The percentage of the graft reduction was calculated using the formula: ([Amount of graft reduction/Grafted alveolar bone width] × 100. p values for between-groups analysis are displayed