Sound knowledge of the root canal morphology and pulp chamber anatomy is a prerequisite for successful root canal treatment. The morphology of the root and canals of the maxillary first molar can be complex and variable. The morphology of the permanent maxillary first molar has been reviewed extensively; however, the presence of two canals in a two-rooted maxillary first molar has rarely been reported in studies describing tooth and root canal anatomies. This case report presents a patient with

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... a maxillary first molar with two roots and two root canals.