New 3D device aims to take the pain out of dental needles
NCT ID NCT06676098
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new 3D-printed device that helps dentists give numbing injections more accurately for procedures on lower teeth. Traditional numbing methods fail up to 45% of the time, causing discomfort. The device uses a 3D scan to guide the needle to the right spot, aiming to improve success and reduce pain. Ten adults needing root canal treatment on lower teeth will try it, and researchers will ask how well it worked and if it was safe.
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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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About 10 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Nov 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.
- 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: * Patient of Henry M. Goldman School of Dentistry (GSDM) * Medical History indicating American Society of Anesthesiology (ASA)1 * Need Non-surgical Endodontic Therapy on Mandibular Molar or Premolar * Asymptomatic pulpal diagnosis (normal, necrotic, asymptomatic irreversible pulpitis, retreatment with no symptoms) * The quadrant to be treated must have at least 3 vital teeth. * Going to receive a CBCT required for clinical purposes * Must be willing to receive guided IANB Exclusion Criteria: * Allergy to lidocaine or articaine * Resin allergy * Normal teeth unresponsive to thermal testing (ie calcified chamber) * Prior jaw surgery * Currently pregnant
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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
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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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Goldman School of Dental Medicine, Boston University
RECRUITINGBoston, Massachusetts, 02118, United States
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