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  Indian J Med Microbiol
 

Figure 4: (a-d) Structural integrity of pulp stones after treatment with 17% EDTA. SEM images depict the loss of crystallites and surface softening, unlike the images obtained before treatment. The dentinal tubules were open and enlarged due to decalcification caused by EDTA in fig b. The crystallites are embedded in an electron-dense granular material coating small groups of collagen fibers. EDTA: Ethylenediaminetetraacetic acid

Figure 4: (a-d) Structural integrity of pulp stones after treatment with 17% EDTA. SEM images depict the loss of crystallites and surface softening, unlike the images obtained before treatment. The dentinal tubules were open and enlarged due to decalcification caused by EDTA in fig b. The crystallites are embedded in an electron-dense granular material coating small groups of collagen fibers. EDTA: Ethylenediaminetetraacetic acid