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  Indian J Med Microbiol
 

Figure 6: Ribeiro and Consolaro's classification of RE: (a) type I refers to a straight root/root canal, (b) type II to an initially curved entrance and the continuation as a straight root/root canals, (c) type III to an initial curve in the coronal third of the root canal and a second buccally orientated curve starting from the middle to apical third

Figure 6: Ribeiro and Consolaro's classification of RE: (a) type I refers to a straight root/root canal, (b) type II to an initially curved entrance and the continuation as a straight root/root canals, (c) type III to an initial curve in the coronal third of the root canal and a second buccally orientated curve starting from the middle to apical third