General information
A summary of the clinical part of this study is provided in this section, and more details of the work protocol are available in the supplementary file. The clinical part of this study was performed in the department of periodontology, faculty of density, Mazandaran University of Medical Sciences under the guidance of Dr. Mohadeseh Heydari. The start and end days of the clinical trial were 2018.09.22 and 2019.09.22, respectively.The clinical trial protocol has been deposited in the Iranian Registry of Clinical Trial (IRCT) network (07/04/2019, IRCT20151017024573N7), entitled as “Evaluation of the effects of the probiotics suspension containing 