Statistical Analysis
The data analysis was performed using the IBM SPSS Statistics 17.0
software program (IBM Corporation, Armonk, NY, USA). Data were evaluated
by descriptive statistical methods, including means, standard
deviations, and interquartile ranges. Categorical variables were
expressed as the number of cases and percentages. The discrete
quantitative variables were analyzed using the Kolmogorov-Smirnov test
to assess the normality of distribution. The student‘s t-test was used
for comparison of quantitative data between two groups. Mann-Whitney
U-test was used for evaluating intergroup differences in terms of
healing time. Fisher‘s exact test was used to compare the frequency of
septal perforation among different study groups.