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  Indian J Med Microbiol
 

Figure 3: (a-d) SEM images of pulp stones without any chemical treatment. (a) Heterogenous, irregular, rough surface of the pulp stones, with the crystallites being closely packed and with varying sizes. (b and c) The pulp stones are covered with structure similar to dentinal tubules surrounded by collagen fibers. (d) The pulp stones as smooth spherical clusters with varying sizes surrounding which there was no fibrous matrix when the internal structure was traced in through large pores and channels. SEM: Scanning Electron Microscopy

Figure 3: (a-d) SEM images of pulp stones without any chemical treatment. (a) Heterogenous, irregular, rough surface of the pulp stones, with the crystallites being closely packed and with varying sizes. (b and c) The pulp stones are covered with structure similar to dentinal tubules surrounded by collagen fibers. (d) The pulp stones as smooth spherical clusters with varying sizes surrounding which there was no fibrous matrix when the internal structure was traced in through large pores and channels. SEM: Scanning Electron Microscopy