[Retracted] Efficacy of Periodontal Endodontics Combined with Diode Laser (DL) Therapy on Severe Periodontitis

Figure 1

Clinical efficacy comparison (all statistical clinical efficacy comparison data in this study were entered into Excel software by the first author and corresponding author, and the statistical processing software was SPSS25.0 for calculation. An independent sample t-test analysis was performed between the two groups to measure the values which were expressed as mean ± standard deviation. It was found that before treatment, there was no significant difference in clinical efficacy between the two groups. After 3 months of treatment, the bleeding index (BI), plaque index (PLI), and periodontal probing depth (PD) were significantly lower than those in the control group, and the difference was statistically significant (), while the attachment loss (AL) in the treatment group was not significantly different from that in the control group ().

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