Red light vs blue light: which causes less tooth pain?
NCT ID NCT06418958
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how red light and blue light affect tooth temperature during dental work and whether that leads to pain afterward. Researchers will measure temperature changes in the tooth and check in with 50 participants after their procedure. The goal is to see if red light is gentler on teeth than the standard blue light.
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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 50 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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Jul 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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21 to 35 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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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: * ASA I classification * Fully erupted pre-molar(s); * Absence of caries; * Absence of restoration. Exclusion Criteria: * Radiographic constriction of the pulp chamber; * Absence of apical closure; * Formation of pulp stones or diffuse calcification at the pulp chamber; * Presence of active carious lesions; * Diagnosed reversible or irreversible pulpitis; * Existing periapical lesion; * Existing or planned root canal treatment.
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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
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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University of Florida College of Dentistry Dental Clinical Research Unit
RECRUITINGGainesville, Florida, 32610, United States
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