Statistical analysis
swelling, pain
Statistical analysis was accomplished using the IBM SPSS version 25 (SPSS Inc., Chicago, III, USA), probability values equal or less than 0.05 were considered significant. The analysis was performed by one of the researchers who was blinded to study results. Non-parametric tests were used to analyse the data that were not normally distributed and in particular Wilcoxon Signed Rank Test to compare the levels of pain, discomfort, swelling and chewing difficulties between the two sides. Friedman’s Test was the selected test for detecting variables’ changes over time. The Post-hoc Wilcoxon Matched-Pairs Signed-Rank Tests were applied when any of the results were significant. Bonferroni Correction was adopted for the purpose of multiplicity of tests.