“…Recent studies focus on antibacterial substances to reduce inflammatory processes of the mucosa (Carinci et al., 2019; John, Becker, Schmucker, & Schwarz, 2017). Although its side effects, such as tooth staining, change of color of the mucosa and tongue surface, hypersensitivity, dryness of the mouth, mucosal irritations or allergic reactions, Chlorhexidine is increasingly used in clinical practice due to its antimicrobial effects (Chye, Perrotti, Piattelli, Iaculli, & Quaranta, 2019; Gürgan, Zaim, Bakirsoy, & Soykan, 2006). The long‐term effect of antimicrobial mouth rinse on peri‐implant disease has not been fully elucidated until today.…”