The edentulous state represents a compromise in the integrity of masticatory system that is frequently accompanied by adverse functional and estheticsequelae which are varyingly perceived by the affected edentulous patient. Until relatively recently, Prosthodontic therapy was focused on technical skills and clinical judgment expertise required to fabricate complete dentures. Dentists consequently became aware of the time dependent relationship between form and functional changes in the masticatory system. Such knowledge helped nurture the development of new materials and knowledge about the relationship between esthetics, occlusion and patient's personalities.