10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 1 2013 (January - March) Alopecia areata (AA) is a non-scarring, inflammatory, hair loss disease that can affect men, women and children. The factors that activate the onset of alopecia areata and the mechanisms of its development are not fully understood.The association of alopecia areata and infectious foci of dental origin may be explained by the autoimmune nature of the disorder. This article reviews this association and suggests that patients with localized alopecia should be subjected to careful exploration of the oral cavity in search of possible dental infections. R.MATHAN RAJAN , R. PRATIBHA RAMANI , VIJAY KARTIK V AND D.KANDASAMY Alopecia areata ,pathogenesis ,dental infection 978-982