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  Indian J Med Microbiol
 

Figure 1: (a) A pre-operative fi lm of a maxillary fi rst bicuspid. A guttapercha cone traces a sinus tract and points to a lesion of endodonticorigin (b) A 10-year post-treatment radiograph reveals excellent healing and confi rms the importance of treating root canal systems

Figure 1: (a) A pre-operative fi lm of a maxillary fi rst bicuspid. A guttapercha cone traces a sinus tract and points to a lesion of endodonticorigin (b) A 10-year post-treatment radiograph reveals excellent healing
and confi rms the importance of treating root canal systems