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848
Painless Reduction of Temporomandibular Joint Dislocation
Ruochen Liao1, Kun Lv1,2
1State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School and Hospital of Stomatology, Wuhan University.
The Journal of Craniofacial Surgery
|September 23, 2025
Summary
A new technique uses nitrous oxide (N2O) for painless, spontaneous temporomandibular joint (TMJ) dislocation reduction. This simple method avoids physician intervention, improving patient experience and TMJ treatment.
Area of Science:
- Dentistry
- Anesthesiology
- Orthodontics
Background:
- Temporomandibular joint (TMJ) dislocation causes pain and functional impairment.
- Conventional reduction methods are uncomfortable and require medical intervention.
Purpose of the Study:
- To introduce a novel, simple, and effective technique for TMJ dislocation reduction.
- To evaluate the efficacy and patient experience of N2O-facilitated spontaneous reduction.
Main Methods:
- Utilized nitrous oxide (N2O) inhalation to facilitate spontaneous TMJ dislocation reduction.
- Focused on a pain-free and physician-independent procedure.
Main Results:
- The N2O-facilitated technique demonstrated simplicity and efficacy.
- The method resulted in a pain-free experience for patients, eliminating the need for manual physician intervention.
Conclusions:
- Nitrous oxide (N2O) offers a novel approach to temporomandibular joint (TMJ) dislocation.
- This technique provides a simple, effective, and comfortable alternative for TMJ dislocation management.

