Sealants tested to keep fillings strong and Stain-Free
NCT ID NCT03924830
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether adding a surface sealant to a bulk fill dental filling helps it last longer and resist staining. 53 patients received three different fillings each, with or without a sealant. The fillings were checked every 6 months for 5 years to see if they failed, changed color, or caused problems.
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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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53 people
The number who actually took part.
- Started
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Aug 2018
- Finished
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May 2026
- 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 to 75 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.
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: * All patients must have at only 20 teeth in function, must have at only 3 carious occlusal or proximo-occlusal lesions, or old restorations that need to be changed, in different teeth. Those lesions must be more than 2 mm deep, should have exposed dentin, and must have at only 50% of margins in enamel. Teeth should not present periodontal mobility. Exclusion Criteria: * Volunteers with periodontal disease; with gingival bleeding; use of anti-inflammatory drugs in the last 30 days.
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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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Universidade Federal Fluminense - School of Dentistry
Nova Friburgo, Rio de Janeiro, 28625-650, Brazil
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Other studies related to the condition(s) this trial covers.
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