Oral sensory nerve damage: Causes and consequences

Area of Science:

• Neuroscience
• Sensory Science
• Oral Health

Background:

• Flavor perception integrates taste, oral somatosensation, and retronasal olfaction, influencing dietary choices and health.
• Peripheral nerve damage from various causes can disrupt oral sensory input.
• Central nervous system interactions can lead to compensatory sensory changes following nerve damage.

Purpose of the Study:

• To explore the mechanisms and consequences of altered oral sensory processing after nerve damage.
• To investigate individual variability in response to oral nerve injury.
• To highlight the clinical relevance of understanding these sensory changes.

Main Methods:

• Review of mechanisms underlying sensory integration and compensation.
• Discussion of clinical conditions resulting from oral nerve damage.
• Emphasis on emerging clinical tests for assessing oral sensory function.

Main Results:

• Regional nerve damage can cause compensatory sensory increases or losses due to central interactions.
• Individual differences in neural processing lead to diverse outcomes, including altered palatability and potential body mass changes.
• Phantom sensations like burning mouth syndrome can occur, especially in individuals with more taste buds.

Conclusions:

• Advances in measuring oral sensory function are crucial for identifying and treating conditions arising from nerve damage.
• Understanding these sensory alterations is key to managing long-term health impacts related to diet and sensory perception.