Jaw surgery showdown: which TMJ fix works best?
NCT ID NCT07297459
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks back at 65 adults who had one of two surgeries for a painful jaw joint condition (TMJ disc displacement). The goal is to see which surgery better improves mouth opening, reduces pain, and helps the jaw work better. Researchers also check recovery speed, side effects, and what factors might predict a good outcome.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 65 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Dec 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Discectomy cohort: all patients with DDwR and surgically treated at the Department of Oral- and Maxillofacial Surgery, Karolinska University Hospital, Stockholm, during the years 2014-2017. Anterior release cohort: all patients with DDwR and surgically treated at the Department of Oral- and Maxillofacial Surgery, Karolinska University Hospital, Stockholm, during the years 2019-2025.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Uni- or bilateral DDwR verified with clinical and/or magnetic resonance imaging (MRI) findings * TMJ pain ≥ 3 (NRS) and/or TMJ disability ≥ 3 (NRS) * Age ≥ 18 years Exclusion Criteria: * Prior open TMJ surgery * Patient diagnosed with rheumatologic joint disease * ASA (American Society of Anaesthesiologists) \> 3 * Patient unable to verify informed consent
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Karolinska University Hospital
Stockholm, 17176, Sweden
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Laser zaps TMJ pain: new study tests quick relief
- New dental MRI could replace x-rays for safer checkups
- New gel could ease jaw pain while you sleep
- New combo treatment aims to quiet jaw pain for TMD sufferers
- Jaw pain mystery: scientists probe genes and feelings for clues