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Table 2 Baseline and re-entry measurement of the alveolar ridge width

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

Groups Initial ridge width (mm) Ridge width at re-entry (mm) Ridge width gain (mm)
Exposed (tests) 3.6 ± 1.0 5.0 ± 1.4 1.4 ± 1.0
Non-exposed (control) 3.4 ± 1.2 6.0 ± 1.1 2.6 ± 1.0
Fisher-Pitman permutation p = 1.00 p = 0.168 p = 0.047
  1. At the entry and re-entry, the alveolar ridge width was measured using a digital caliper at the crestal level in both groups. In the control group (non-exposure), the mean ridge width was 3.4 mm and changed to 6.0 mm (p < 0.01). In the test group, the mean of ridge was 3.6 mm and changed to 5.0 mm. p values that were calculated for between mean groups analysis are displayed. Alveolar ridge gain was calculated by subtracting re-entry measurement from the entry measurement for each patient at the crestal level using a digital caliper. In the control group, the mean of the gain was 2.6 mm, while it was 1.4 mm in the test group. p values for between-groups analysis are displayed