The secondary mesiobuccal canal of maxillary molars.
D004396:Coloring Agents; D003648:Decalcification Technique; D003786:Dental Pulp Cavity / Q000002:abnormalities*; D006801:Humans; D066298:In Vitro Techniques; D008437:Maxilla; D008963:Molar / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D011859:Radiography; D012389:Root Canal Obturation; D014092:Tooth Root / Q000002:abnormalities
D004396:Coloring Agents