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The original article [1] contains a major error carried across the captions of Tables 1, 2, and 3. In each table caption, the data were expressed as “mean ± standard deviation (SD)”; unfortunately, the authors had mistakenly expressed the data as “mean ± standard error (SE)” instead. As such, all mentions of “mean ± standard error” in those table captions should of course state “mean ± standard deviation”. The authors are deeply sorry for these errors.

Correction to: Treatment of periodontal intrabony defects using autologous periodontal ligament stem cells: a randomized clinical trial