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Isolation, Culture, and Characterization of Dental Pulp Stem Cells from Human Deciduous and Permanent Teeth
Published on: May 17, 2024
Cortical representation area of human dental pulp
K Kubo1, Y Shibukawa, M Shintani
1Department of Dental Anesthesiology, Oral Health Science Center, Laboratory of Brain Research, Tokyo Dental College, Chiba 261-8502, Japan. kubo_sic@wm.pdx.ne.jp
Journal of Dental Research
|March 26, 2008
Summary
This study identified the brain region for dental pulp sensation in the primary somatosensory cortex. It confirms that A-beta fibers in dental pulp transmit signals to this area.
Area of Science:
- Neuroscience
- Sensory Physiology
Background:
- The precise representation of dental pulp within the human primary somatosensory cortex is not fully understood.
- Investigating the neural pathways involved in dental sensation is crucial for understanding orofacial sensory processing.
Purpose of the Study:
- To map the dental pulp representation area in the human primary somatosensory cortex.
- To determine the presence and role of A-beta fibers in transmitting dental pulp stimuli.
Main Methods:
- Magnetoencephalography (MEG) was used to record cortical responses.
- Non-painful electrical stimulation was applied to the dental pulp of healthy human subjects.
Main Results:
- Short-latency (27 ms) cortical responses were observed following stimulation of vital dental pulp.
- No responses were detected when stimulating pulpless (devitalized) teeth.
- The neural source for dental pulp stimulation was located anterior-inferiorly to the hand area in the primary somatosensory cortex.
Conclusions:
- The study successfully identified the dental pulp representation area in the primary somatosensory cortex.
- Evidence suggests that intradental A-beta neurons transmit sensory information from the dental pulp.
- This research refines the sensory homunculus by incorporating the dental pulp, enhancing our understanding of orofacial somatosensory organization.
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