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RESEARCH PRODUCT

Not a current fashion, but a truth since 1884

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We thank Kucharz [1] for the valuable historical comment to our review focusing on the role of oral infection on systemic diseases [2]. The majority of scientists today write and read the English language whereas articles in Polish and German are scarcely known outside of Poland and Germany, respectively. For these reasons, the contribution of Kaczorowsky [3] is commonly forgotten in medical literature, but the letter of Kurchaz properly acknowledges this pioneer researcher in the periodontal medicine. We also thank Blum [4] for adding his results [5,6] to our review article. As the number of references citable is limited, we did not cite the articles written by Blum et al. [5,6], but we read and appreciated both them. In our review, we cited the paper of Tonetti et al. [7], published in 2007 like the papers of Blum et al., and dealing with the effects of periodontal therapy on systemic inflammation (including CRP level) as well as endothelial dysfunction.