The primary cause of the lesion should be understood as it can influence their prognosis … Endodontic treatment, combined with calcium hydroxide paste dressing, interrupts the inflammatory process of resorption and allows periradicular recovery. This classification is a simple one that will help clinicians to formulate management plans for when these diseases occur concurrently. Definitions. Classification of endodontic-periodontal lession Simon, Glick & Frank (1972)  classified endodontic-periodontal lesion, based upon origin of the disease and its spread, as following: 1. Treatment and prognosis of endodontic–periodontal lesions depend on the cause and the correct diagnosis of each tissue. ... factor influencing the endodontic prognosis. Background and objectives: The long-term outcome of endodontic microsurgery (EMS) performed on root-filled teeth affected by post-treatment apical periodontitis (AP) has been a matter of debate, re-launched by the introduction of novel root-end filling materials which have been proven to improve the short-term outcome of EMS. The differential diagnosis of endodontic and periodontal diseases can sometimes be difficult but it is of vital importance to make a correct diagnosis so that the appropriate treatment can be provided. The periapical index is a structured scoring system for categorization of radiographic features of apical periodontitis. prognosis. is the presence of a periapical radiolucency. Radiographic methods were not included. The aim of this study is to investigate the factors affecting the prognosis of endo-periodontal lesions. Because each classification carries a different prognosis it is important for the practitioner to be able to adequately evaluate the endodontic and periodontic disease relationship for proper treatment planning . The American Association of Endodontists (AAE) offers this information as a means of outlining and defining the skills required of all dentists who perform endodontic … Endodontic assessment revealed a localized gingival swelling on the buccal aspect of the tooth adjacent to the furcation area. The treatment and prognosis are now different than those of teeth simply having endo or perio disease ; The tooth now requires both endodontic and periodontal treatments ; If the endo Tx is adequate, the prognosis depends on the severity of the plaque-induced periodontitis and the efficacy of perio Tx; 33 Primary Endo with Secondary Perio provide is well recognized in the current concept of evidence-based health care. Endodontic-periodontal lesions present various challenges to the clinician regarding the diagnosis and prognosis of the involved teeth. Based on the available literature, these types of teeth may have a poor prognosis after endodontic treatment, with the potential ramification of extensive periodontal and/or periapical bone loss. Primary endodontic lesion 2. Classification The most commonly used classification was given by Simon, Glick and Frank in 1972, which includes : 1. The aim of this systematic review was to appraise the diagnostic accuracy of signs/symptoms and tests used to determine the condition of the pulp in teeth affected by deep caries, trauma or other types of injury. Based on the size: a. Etiologic (Fig. The prognosis is a prediction of the probable course, duration, and outcome of a disease based on a general knowledge of the pathogenesis of the disease and the presence of risk factors for the disease. Large perforation – it occurs mainly during post-preparation with significant tissue damage and obvious , according to the primary cause of disease. Traditional classifications of endodontic–periodontal lesions are largely academic and based inappropriately on an attempt to identify the primary source of infection. e di erential diagnosis of endodontic and periodontal diseases can sometimes be di cult but it is of vital impor-tance to make a correct diagnosis so that the appropriate treatment can be provided. Background . Classification. If endodontic and periodontal lesions occur in different roots of the same tooth they are readily distinguishable. One of the main classification items was primary endodontic disease, which we believe should be modified, since it has no periodontal relationship.