Tooth 85 — Mandibular Right Primary Second Molar
FDI85UniversalKTypeMolarRoots2Canals3Erupts23–31 monthsSheds10–12 years
Function: Primary posterior grinding toothLargest mandibular primary toothCritical space maintainer for second premolarPrevents mesial drift of permanent first molar
Roots (2): Mesial rootDistal root
Canals (typically 3): Mesiobuccal (MB)Mesiolingual (ML)Distal (D)
Dentition: Deciduous · Lower Right Deciduous
The full tooth entry includes
- Innervation, nerve pathway and matched anesthesia technique
- Access cavity shape, location and working lengths
- Canal configuration, morphology detail and clinical hints
- The interactive 3D model
More tooth anatomy
Tooth 51 — Maxillary Right Primary Central IncisorTooth 52 — Maxillary Right Primary Lateral IncisorTooth 53 — Maxillary Right Primary CanineTooth 54 — Maxillary Right Primary First MolarTooth 55 — Maxillary Right Primary Second MolarTooth 61 — Maxillary Left Primary Central IncisorTooth 62 — Maxillary Left Primary Lateral IncisorTooth 63 — Maxillary Left Primary CanineTooth 64 — Maxillary Left Primary First MolarTooth 65 — Maxillary Left Primary Second MolarTooth 71 — Mandibular Left Primary Central IncisorTooth 72 — Mandibular Left Primary Lateral Incisor
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