“…[14] It has been found that the concentrations of leptin are higher in healthy periodontal tissues and its level declines as periodontal disease progresses, suggesting that leptin plays an important role in immune defense mechanism of the host and is a protective molecule which helps in maintaining tissue homeostasis. [14][15][16][17] There is an accumulating substantiation that leptin plays a key role in the regulation of wound healing and repair by aiding the wound closure through promoting angiogenesis [9,18,19] reepithelization (mitogenesis of keratinocytes), [20] induction of keratinization, [21] as well as fibroblast proliferation and collagen synthesis. [22] The accumulating evidence have proven beyond doubt that leptin is necessary to orchestrate the major events involved in the biological process of wound.…”