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Reinnervation of teeth after segmental osteotomy
International Journal of Oral and Maxillofacial Surgery
|August 1, 1986
Summary
Canine teeth reinnervation after segmental osteotomy in cats showed significantly reduced axon numbers and smaller myelinated axons. Non-myelinated fibers also exhibited changes, impacting nerve regeneration in denervated teeth.
Area of Science:
- Veterinary Neuroscience
- Oral Surgery
- Regenerative Medicine
Background:
- Segmental osteotomy can disrupt nerve supply to teeth.
- Understanding reinnervation is crucial for dental repair and function.
Purpose of the Study:
- To investigate the reinnervation process of canine teeth after segmental osteotomy in cats.
- To analyze changes in axon morphology and density post-denervation.
Main Methods:
- Electron microscopy was used to examine canine teeth in cats.
- Comparison of nerve structures between surgically treated and normal control teeth.
Main Results:
- 12 weeks post-osteotomy, canine apices had only 36% of normal axon numbers.
- Myelinated axons were smaller with thinner myelin sheaths.
- Non-myelinated fibers showed altered axon distribution within Remak bundles.
Conclusions:
- Segmental osteotomy leads to significant deficits in canine tooth reinnervation.
- Nerve regeneration involves changes in axon size and myelination.
- Further research is needed to explore functional recovery post-nerve injury.