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.
Mortman
Rory E
RE
Endodontic Section, Atlantic Coast Dental Research Clinic, Lake Worth, Florida, USA.
Ahn
Sunghee
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003786:Dental Pulp Cavity / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008334:Mandible; D008963:Molar / Q000033:anatomy & histology*; D009811:Odontometry; D011859:Radiography; D018915:Root Canal Preparation; D014092:Tooth Root / Q000033:anatomy & histology* / Q000000981:diagnostic imaging