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Updated: Aug 8, 2026

A Morphometric and Cellular Analysis Method for the Murine Mandibular Condyle
Published on: January 11, 2018
[The morphology of roots and canals in the C-Shaped mandibular second molars]
1Stomatology Hospital afficated to Tongji University, Shanghai 200072, China.
Objective:
To study the morphology of the fused roots and canals.
Methods:
Through th canal transparent specimen and root transverse sections,the shape of canals and the length of roots were observed.
Results:
All roots were fused buccally. The length of root was longer than normal,and the difference had significance. Many variations in root canal morphology, only 40 percent demonstrated a continuous C-Shaped canal in the coronal,middle and apical sections of the root. 30 percent exhibited semicolon, and 10 percent were separate canals. 20 percent canal shapes frequently changed at different levels.
Conclusion:
These special morphologies of the C-Shape mandibular second molars would be detrimental to canals debridement and obturation.
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