Related Experiment Video
Updated: Oct 10, 2025
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Temporomandibular Joint Pain Measurement by Bite Force and Von Frey Filament Assays in Mice
Published on: September 13, 2024
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Temporomandibular joint innervation: Anatomical study and clinical implications
Arda Kucukguven1, Mehmet Deniz Demiryurek2, Ibrahim Vargel1
1Department of Plastic, Reconstructive and Aesthetic Surgery, Hacettepe University Faculty of Medicine, 06080 Sihhiye, Ankara, Turkey.
Summary
This study reveals new details about temporomandibular joint (TMJ) innervation, identifying specific nerves and variations. Understanding TMJ nerve pathways can improve treatments for temporomandibular disorders and related pain.
Area of Science:
- Anatomy
- Neuroscience
- Pain Management
Background:
- Temporomandibular disorders (TMD) cause significant pain and social impact.
- Current understanding of temporomandibular joint (TMJ) innervation is insufficient for optimal treatment.
- Elucidating TMJ innervation is crucial for understanding temporomandibular pain pathophysiology.
Purpose of the Study:
- To map the topography and variations of TMJ innervation.
- To identify relationships between TMJ nerves and surrounding anatomical structures.
- To provide a guide for interventions in the TMJ, infratemporal, and preauricular regions.
Main Methods:
- Dissection of TMJ nerves and surrounding structures in 20 cadaver half heads (10 fresh frozen, 10 embalmed).
Main Results:
- TMJ is primarily innervated by the auriculotemporal nerve (posteriorly), masseteric nerve (anteriorly), posterior deep temporal nerve (anteromedially), and a direct branch from the mandibular nerve (medially).
- Variations in these innervation pathways were observed.
- The study highlights the first documented instance of a direct mandibular nerve branch innervating the TMJ.
Conclusions:
- Detailed knowledge of TMJ anatomy and innervation facilitates precise treatment algorithms for temporomandibular pain.
- Findings can inform new clinical studies and interventions to reduce healthcare costs and alleviate TMD burden.
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