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Could a simple jaw numbing injection cut opioid use after wisdom tooth removal?

NCT ID NCT04880707

Symptom relief Sponsor: Rutgers, The State University of New Jersey Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a numbing injection called Twin Block can reduce jaw muscle pain and the need for opioid painkillers after wisdom tooth removal. About 48 healthy adults who have jaw pain the day after surgery will receive either the Twin Block or a placebo. Researchers will track pain levels and painkiller use for a week to see if the injection helps.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
2% lidocaine with 1:100,000 epinephrine (standard dental anesthetic)
What this could lead to
If it works, this could provide a simple, non-opioid way to manage jaw pain after wisdom tooth removal, reducing the risk of opioid addiction.
What could go wrong
This is a small pilot study with only 48 participants, so results may not apply to everyone. The placebo group may also show improvement, making it hard to prove the injection's benefit.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 2

Tests whether the treatment actually works, and watches for side effects, in a larger group.

Participants

About 48 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2024

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * All patients requiring extraction/s of at least 1 lower wisdom (third) molar that is partially/fully 'impacted', under intravenous sedation, are eligible to participate in this study so long as they 1. are older than 18 years of age, 2. are healthy, 3. have no cognitive/intellectual disability, 4. have no past/recent pain or reduced range of motion in their jaw joint/ muscle complex, no trauma or surgery in their jaw region. 5. have an electronic device such as a smart phone or a tablet/ computer with internet connection. 6. are willing to participate in the study and not be excluded by the following criteria below. Exclusion Criteria: * Any patients, even if satisfying the criteria above, may not take part if they have any of the following: 1. Compromised ability to guard their self-interest, for e.g., prisoners, children, pregnant women, patients with intellectual/cognitive disability are not enrolled in the study. 2. Those patients who present with infection/inflammation involving the third molars slated for extractions, on the day of their procedure, may not take part in the study. 3. In addition, those who have had opioid pain medication/s in the past to address short-term or long-standing pain, or those who are on long term prescription of anti-inflammatory pain medication, are unable to participate. 4. Those with long standing pain of the jaw joint or muscles. 5. Finally, those patients who are allergic to/unable to tolerate either the dental local anesthetic or its components, opioids, acetaminophen ('Tylenol') or ibuprofen ('Motrin' or 'Advil') also may not take part in the study.

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Conditions

The condition(s) this trial relates to.

Acute Pain myofascial pain syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Acute pain

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Rutgers School of Dental Medicine

    RECRUITING

    Newark, New Jersey, 07103, United States

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