Research progress on the middle mesial root canal in the mandibular molar

Abstract

Of the various root canal morphologies in mandibular molars, the middle mesial root canal is located be⁃ tween the mesiobuccal root canal and the mesiolingual root canal. The middle mesial root canal is a partial or complete⁃ ly independent extra root canal. Because of its fine structure, concealment and even calcification of the root canal ori⁃ fice, it is difficult to completely clean and fill this root canal and it is easily omitted by dentists. The current study re⁃ viewed recent progress in terms of the incidence rate, classification, influencing factors, and exploration and preparation techniques of the middle mesial root canal of the human mandibular molar to provide a reference for clinical diagnoses and treatment.

Keywords

• Mandibular molars
• Middle mesial root canals
• Incidence rates
• Influencing factors
• Exploration technology
• Root canal therapy