Nishonov Zokhidjon Khayrulla ugli and Islamova Nilufar Bustanovna 2025. Periodontal Disease - Symptoms and Treatment. European International Journal of Multidisciplinary Research and Management Studies. 5, 02 (Feb. 2025), 116–119. DOI:https://doi.org/10.55640/eijmrms-05-02-21.