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Table 2 Comparison of the experimental stages within the same group and among the different groups

From: Preventive effect of a high fluoride toothpaste and arginine-carbonate toothpaste on dentinal tubules exposure followed by acid challenge: a dentine permeability evaluation

  Duraphat ProArgin Control
   S1 S2 S3 S4 S1 S2 S3 S4 S1 S2 S3 S4
Duraphat® S1   **           
S2    * *         
S3        *      
  S4             *
ProArgin® S1             
S2        *** ***     
S3    *         ***  
  S4             ***
Control S1            * ***
S2             *
S3        ***      
  S4     *     ***     
  1. Evaluation of the differences in permeability values after each stage into the same group -Friedman and Dunn’s posttest - * = p < 0.05, *** = p < 0.001.
  2. Evaluation of the different stages among the groups - Kruskal-Wallis and Dunn’s post-test - * = p < 0.05, ** = p < 0.01 and *** = p < 0.001.