Intrabony Standard Deviation

Statistical analysis Each defect was considered as a statistical unit. Primary study outcomes were changes in CAL at the six-month evaluation period. Descriptive data that included mean ± standard deviation (SD) were calculated for clinical and radiographic parameters at baseline and 6 months. Following this, the data were subjected to statistical analysis using the Wilcoxon signed rank test for intragroup comparison and the Mann-Whitney U test for intergroup comparison. The level of significance was set at the probability value p ≤ 0.05. All calculations were performed using SPSS data analysis software (Ver.14.0; SPSS Inc.).
Results Sixteen patients (6 males and 10 females, mean age 24 ± 3.3 years, range 20 - 35 years) completed the study. All tolerated the surgical procedures and no postoperative complications or adverse events were seen with any of the participants during the study period. …show more content…
Control group: a) Pre-operative and b) post-operative radiographs. CEJ, cementoenamel junction; CBL, crestal bone level; IC, intrabony component
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Fig 1
Figure 1. Test group: a) Pre-operative and b) post-operative radiographs. CEJ, cementoenamel junction; CBL, crestal bone level; IC, intrabony component
Author et al.: Platelet-rich fibrin for the treatment of intrabony defects 5
No significant change in GML was recorded for the control group at the 6-month evaluation period (p = 0.33). However, for the test group, GML significantly improved from 1.08 ± 1.14 mm to 0.62 ± 0.77 mm (p = 0.036). The difference between groups was statistically significant (p < 0.05). There was no statistically significant difference in PI from baseline to 6 months following surgery for any group. However, a statistically significant difference in the PBI scores from baseline to 6 months following surgery was reported. The difference between groups was statistically insignificant (p > 0.05; Table 1). All PI ad PBI scores were within clinically healthy