Conservative Dentistry is the art and science of the diagonosis, treatment and prognosis of defect of teath that do not requiery full coverage restorations for correction . such treatment should result in the restoration of proper tooth , function and esthetics, which maintaining the physiologic integrety of the teeth in harmonious reletionship with the adjacent hard and soft tissues, all of which should enhance the genral health and welfare of the patient.

Endodontics:
The branch of dentistry which is concerned with morphology , Physiology and pathology of human dental pulp and periradicular tissues. ts study and practice encompasses the basic and clinical science including the biology of normal pulp and etiology, diagnosis, prevention and treatment of disease, and injuries of pulp and assocated periradicliar condition, and also including, the procedures link bleaching of discolored teeth and endodontic implants.