 This study found that the pH of saliva is significantly higher in patients with generalized chronic gingivitis than those with healthy gingiva while it is lower in patients with generalized chronic periodontitis than those with healthy gingiva. This suggests that salivary pH can be used as a quick chair side diagnostic biomarker for periodontal disease. This article was authored by Sharmila Baliga, Sangita Mughalikar and Rahul Kali.