“…It is well-documented that clinical periodontal parameters among CS and STU have increased percentage of deep probing depths, a higher clinical attachment loss, and increased alveolar bone loss compared with NTU 16,17 ; however, to our information from the literature, the present study is the first study to compare clinical and radiographic parameters around dental implants and proinflammatory cytokine levels among CS (Group-1), STU (Group-2), and NTU (Group-3). The purpose of the present study is supported on the hypothesis that periimplant clinical and radiographic inflammatory parameters are worse in CS and STU compared with nontobacco users.…”