One of the main causes of chronic inflammatory periodontal diseases is dental deposits, which are formed as a result of improper oral hygiene, changes in the quantitative and qualitative composition of the oral micro flora, and a decrease in the body's resistance. Compliance with individual oral hygiene is an important step in the successful treatment and prevention of periodontal disease.
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A. I. Nikolaev, L. M. Tsepov. Practical therapeutic dentistry. --- 2017-No. 9. From 846-847