The aim of this study is to evaluate the relationship between the severity of Pemphigus Vulgaris (a chronic autoimmune skin disease) and periodontal (gum) health. Researchers will assess disease activity using the Oral Disease Severity Score (ODSS) for mouth lesions and measure serum Desmoglein 1 and 3 levels through blood tests. These findings will be compared with clinical gum measurements, such as pocket depth and attachment levels. The study intends to determine how the clinical and biochemical severity of Pemphigus Vulgaris impacts periodontal tissues and overall oral health.