Blood-Based injection may ease jaw locking and pain
NCT ID NCT07532798
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether platelet-rich plasma (PRP) injections can help people with a jaw condition where the joint slips out of place (TMJ subluxation). Forty adults received two injections of PRP, made from their own blood, with either a low or high platelet concentration. Researchers measured pain, locking episodes, mouth opening, and joint clicking before treatment and again after 6 months and 5 years to see if the platelet level affects results.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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40 people
The number who actually took part.
- Started
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Apr 2016
- Finished
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Jul 2017
- 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.
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: patients aged ≥ 18 years - Exclusion Criteria: patients aged \< 18 years \-
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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.
Contacts and locations
Locations
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Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University
Cairo, Egypt
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Other studies related to the condition(s) this trial covers.
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