“…Some studies have demonstrated higher plaque index, gingival bleeding, probing depth, and periodontal index in SS patients with elevated risk of periodontal disease (Najera et al , ; Celenligil et al , ; Rhodus and Michalowicz, ; Ergun et al , ). While others have shown non‐significant differences between SS patients and control groups regarding clinical parameters and periodontal status (Tseng et al , ; Tseng, ; Mutlu et al , ; Lundstrom and Lindstrom, ; Tervahartiala et al , ; Kolavic et al , ; Boutsi et al , ; Kuru et al , ; Jorkjend et al , ; Leung et al , ). In addition, no increased risk of periodontal disease has been detected in some of the above‐mentioned studies (Pedersen et al , ).…”