This book represents a step by step guide to the reader to reach the required level of excellence for the histopathological investigation. The text is indeed a well structured, comprehensive review of decalcification of dental hard tissues. The authors meticulous approach towards the desired knowledge makes the text an excellent bet for readers. The decalcification process for histopathological investigation has been illustrated with step by step procedure using the newer decalcifying agents and technique.

Lichen Planus is an "eruption of flat topped, shiny, violaceous papules on flexor surface, male genitalia and buccal mucosa of unknown cause, may formed linear groups, microscopically characterised by a band like sub epidermal lymphocytic infiltrate."Oral Lichen Planus is a premalignant condition.They are usually bilaterally symmetrical.Oral lichen planus may coexist with lesions of the genital mucous membranes or with lesions of cutaneous lichen planus.This book aims at reviewing the pathogenesis, etiology, clinical features, histopathology and treatment of oral lichen planus.

Hormones are secretory products of endocrine glands released directly into the circulation in small amounts in response to a specific stimulus and on delivery in circulation produce response on the target cells or organs. The system is specifically designed to integrate and control the human bodys innumerable metabolic activities. Hormones interact with target cells via receptors which are large protein molecules with specific binding sites for specific hormones. There are 2,000 - 100,000 receptor molecules present per target cell. Any variation in the hormonal secretion from normal...