Endodontic Retreatment of Maxillary Second Molar with Four Roots

Figure 2

(a) The pretreatment radiograph showed an apical radiolucency on the mesial root. Due to the buccal-palatal superimposition, the second mesial root is not visible. (b) Photograph of the pulp chamber floor after removal of the gutta-percha. Root canal orifices were “irregular quadrilateral” shaped on the pulp chamber floor representing Versiani Type A. (c) Photograph after the canal obturation. (d) The posttreatment radiograph showed two mesial filled root canals (arrows).

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