Levels of Bisphenol A in Urine and Saliva Following Placement of Composite Restorations
Public ClinicalTrials.gov record NCT00339339. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Bisphenol A and Metabolites in Urine and Saliva Associated With Placement of Composite Restorations
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will determine whether placement of composite (white) dental restorations (fillings) increases concentrations of bisphenol A (BPA) and its metabolites in saliva and urine. These compounds have estrogenic-like properties that have raised concerns about their safety. Small amounts of the chemicals can leach out of dental sealants and be detected in saliva soon after the sealants are applied. Dental composites also contain some of these compounds. U.S. Commissioned Corps officers who need fillings as part of their regular dental treatment and who select composite (white) restorations instead of amalgam (metal) may be included in this protocol. Participants are recruited from among officers receiving dental care at the commissioned officers dental clinic in Rockville, Md. Participants complete a 15-minute interview to gather information about their recent diet and eating patterns. They also provide 3 to 4 urine and saliva samples, some collected before their dental restoration and some after treatment.
Study identification
- NCT ID
- NCT00339339
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 172 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 20 Years to 60 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 25, 2004
- Primary completion
- Not listed
- Completion
- Jan 21, 2013
- Last update posted
- Dec 16, 2019
2004 – 2013
United States locations
- U.S. sites
- 2
- U.S. states
- 2
- U.S. cities
- 2
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Commissioned Officers Dental Clinic (CODC) | Rockville | Maryland | — | — |
| Kessler Air Force Base Dental Clinic | Biloxi | Mississippi | 39534-2519 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00339339, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 16, 2019 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00339339 live on ClinicalTrials.gov.