Removaable prosthodontics is devoted to replacement of missing tooth and contagious tissue with prosthesis designed to be removed by the wearer, it includes two disciplines removable complete and removable partial prosthodontics, the treatment of partially edentulous patient requires knowledge and skill on the part of dentist in every phase of dental practice, the formulation of a proper treatment plan requires a proper evaluation of the pre-tretment data, essential diagonistic data are obtained from patient review, radiographs, diagnostic and surveying cast, definitve oral examination including periodontal probing, percussion vitality testing and consultation with medical specialites if needed, the design of prosthesis is carried out after fundamental data are obtained a turning point in partial denture construction from guess work based clinical experince to scientificially proven data came in 1918 with the introduction of dental surveyor