Explain the mandibular ramus, Biology

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Mandibular Ramus

Serves as an intraoral autogenous bone donor site. Cortical bone upto 4mm thickness may be harvested from the ramus. Harvest of bone from this area requires knowledge of the mandibular canal anatomy to prevent nerve injury and also injury to the buccal artery when incision is placed along the external oblique ridge.

Prominent external oblique ridge is also an ideal site for harvesting autogenous bone graft.  However, caution must be exercised to avoid injury to the teeth or to the inferior alveolar nerve at the inferior extent of the graft harvest, and the lingual nerve medially.

 


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