Mandibular first molars with three mesial canals.

Five clinical cases demonstrate the presence of a middle mesial canal in the mandibular first permanent molar. This is not an extra canal but rather the sequelae of instrumenting the isthmus between the mesiobuccal and mesiolingual canals.

Keywords

Adult, Aged, 80 and over, Male, Mandible, Molar, Radiography, Humans, Odontometry, Female, Dental Pulp Cavity, Tooth Root, Root Canal Preparation, Aged

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