VEGFA and periodontitis: All of them were found higher in the periodontitis groups compared with healthy ones, in both serum and GCF; visfatin, VEGF, oncostatin M, and TNF‐α decreased, in both fluids, after scaling and root planning (Baltacioglu, Akalin, Alver, Deger, & Karabulut, 2008; Gokul, Faizuddin, & Pradeep, 2012; Pradeep et al., 2011; Pradeep, Prapulla, Sharma, & Sujatha, 2011; Raghavendra et al., 2012; Thorat, Pradeep, & Garg, 2010; Turer, Durmus, Balli, & Guven, 2017).