Gates Glidden drills caused the highest apical leakage in teeth obturated with single-cone technique.

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SUMMARYThe root canal and periodontium are in a close relation with each other and cross infection between dental pulp tissue and periodontal ligament may occur by the anatomical structures and non-physiological pathways. Endo-perio lesions are challenging for the clinicians in terms of diagnosis and prognosis. It is important to understand the etiology of the lesions to determine the timing and ordering the treatment procedures. In some cases, endodontic or periodontal treatment is sufficient alone while secondary involvement of endodontic or periodontal lesions or true combined lesions are required more complicated treatment options. There is a lack of knowledge about the treatment protocols concerning endo-perio lesions therefore this review aims to highlight the current and advanced treatment strategies.

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