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.