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New tooth filling tested for better smile appeal
NCT ID NCT03716349
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested a new dental filling material against a standard one to see which looks better. 36 adults with cavities in their front teeth each got both fillings. Researchers measured patient satisfaction with the appearance using a scale. The goal was to see if the new material improves how the filling looks.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dental filling composite
- What this could lead to
- If successful, this could show that the new filling material looks better and satisfies patients more than the current standard.
- What could go wrong
- This is a small, completed trial focused only on appearance, not durability or long-term outcomes. Results may not apply to all tooth types or cavities.
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
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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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36 people
The number who actually took part.
- Started
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Jan 2019
- Finished
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Nov 2025
- 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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Accepted
You do not need to have the condition being studied to take part.
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: * Sensible tooth -responds to cold or electric pulp testing (done at screening) * Patient 18years of age or old * Current radiograph available (done at screening as needed) * A pair of the same type of restorations needed in the anterior esthetic/facial region (tooth #4-#13). Exclusion Criteria: * Fewer than 20 teeth * Advanced untreated periodontal disease or recent periodontal surgery * Rampant uncontrolled caries activity * Bruxism or clenching and visible wear facets on the occlusal surface * Undergoing or in need of TMJ therapy * Known allergy to methacrylate-based materials or product ingredients * History of poor dental visit attendance * Not available for recall for at least 3 years * Fractured or visibly cracked tooth * Poor oral hygiene * Sensitive tooth or currently using desensitizing treatments, pastes or medicaments * Pregnant * Abutment teeth for prostheses * Teeth considered for restoration are non-vital, have had root canal therapy or been pulp capped * Teeth or supporting structures with any symptomatic pathology or extensive caries lesion * Individual supervised by PI or supervised by member of research team * Individual subordinate to the PI or subordinate to any member of the research team * Student or trainee under the direction of the PI or under the direction of a member of the research team
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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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University of Iowa
Iowa City, Iowa, 52242, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.