Right Lower Second Secondary Molar Tooth (Dens molaris secundus mandibularis dexter)
Educational content only — not medical advice.
Anatomy
The right lower second secondary molar tooth (FDI #47, Universal #31), or 12-year molar, lies immediately posterior to the first permanent molar in the mandible. Distinguished by a symmetrical rectangular occlusal table with four cusps divided by a characteristic cross-shaped (+) fissure pattern and two closely set roots, it provides heavy crushing and grinding during mastication.
Clinical notes
The apices of the lower second molar roots lie in close proximity to the inferior alveolar nerve canal; periapical surgery or difficult extraction requires precise radiographic assessment to avoid nerve injury.
Related structures
Educational references
FAQ
What is the role of the Right Lower Second Secondary Molar Tooth?
The right lower second secondary molar tooth (FDI #47, Universal #31), or 12-year molar, lies immediately posterior to the first permanent molar in the mandible. Distinguished by a symmetrical rectangular occlusal table with four cusps divided by a characteristic cross-shaped (+) fissure pattern and two closely set roots, it provides heavy crushing and grinding during mastication.
Why is the Right Lower Second Secondary Molar Tooth clinically important?
The apices of the lower second molar roots lie in close proximity to the inferior alveolar nerve canal; periapical surgery or difficult extraction requires precise radiographic assessment to avoid nerve injury.
Source & license
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