Background:Continuous chelation can be defined as the concept of using a single mix weak chelator with NaOCL throughout entire root canal preparation procedure without causing reduction in antimicrobial and proteolytic activity NaOCL. Etidronic acid, also known "1-Hydroxyethylidene-1, 1-Bisphosphonate" HEBP, or HEDP, is soft biocompatible utilized direct combination sodium hypochlorite to form ...

The electronic properties responsible for free radical scavenging and metal chelation of a set of 7 flavonoids compounds were studied. Electronic parameters were calculated using semi empirical PM3 method. The structure activity relationship of OH substitution, C2-C3 double bond, chelation site of flavonoid and related property of antioxidant efficiency, BDE, mulliken atomic charge, electron cu...

The role of iron chelation therapy in myelodysplastic syndrome (MDS) remains controversial. Averting cardiac dysfunction in low-grade MDS patients who have sufficient longevity to experience deleterious cardiac effects of iron overload has been the major argument in favor of iron chelation. Although there is significant evidence showing the adverse impact of transfusion dependency on survival i...