Dental innervation: functions and plasticity after peripheral injury

Area of Science:

• Neuroscience
• Oral Biology
• Physiology

Background:

• Oral tissues possess dense sensory innervation and vascular supply.
• Teeth and supporting structures are vulnerable to injury and inflammation due to limited collateral circulation and low compliance.
• Understanding nerve function and adaptation is crucial for oral health.

Purpose of the Study:

• To review dental nerve functions and adaptive changes in the trigeminal ganglion and tooth pulp after peripheral injuries.
• To provide an overview of peptidergic innervation in oral tissues.
• To discuss plasticity in neuropeptide expression and its functional implications.

Main Methods:

• Literature review focusing on dental nerve functions and trigeminal neuroplasticity.
• Analysis of neuropeptide expression changes in peripheral neurons post-injury.
• Consideration of functional outcomes related to nerve regeneration, inflammation, and hemodynamics.

Main Results:

• Oral tissues exhibit significant sensory innervation and vascularization.
• Peripheral injuries trigger adaptive changes in neuropeptide expression within trigeminal neurons.
• These neuroplastic changes influence nerve regeneration, inflammatory responses, and blood flow regulation in oral tissues.

Conclusions:

• Dental nerve plasticity is a key factor in the response to oral tissue injury.
• Understanding these adaptive mechanisms is vital for managing dental pain, inflammation, and promoting tissue repair.
• Further research into neuropeptide regulation can inform therapeutic strategies for oral conditions.