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Table 1 The association between the methods used the following variables: occurrence of perforation, length of perforation, and the time of operation

From: Comparison of three different methods of internal sinus lifting for elevation heights of 7 mm: an ex vivo study

  BAOSFE BALLOON CAS kit Total Stats p value
Occurrence of perforation 7 (58.4%) N = 12 1 (8.3%) N = 12 1 (8.3%) N = 12 9 (25%) N = 36 × 2 = 8.585a 0.014
Length of perforation (mean) 3.42 mm 0.5 mm 0.5 mm 0.711 mm F = 11.031 0.0001
Time of operation (mean) 3.073 min 5.393 min 8.486 min 5.651 min F = 1221 0.0001
  1. F ANOVA test
  2. aChi-square test