Bisphenol A in Saliva and Urine Related to Placement of Dental Composites
Concentration of Bisphenol A in Saliva and Urine Before and After Treatment With Polymer-based Dental Filling Materials
1 other identifier
observational
20
1 country
1
Brief Summary
It has been reported that therapy with polymer-based dental filling materials was associated with higher concentrations of bisphenol A in saliva and urine directly after the treatment. The objective of the present project is to gain knowledge about the concentration of bisphenol A in saliva and urine before and after treatment with polymer-based dental filling materials, using sensitive analytical methods.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for all trials
Started Oct 2015
Typical duration for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
October 1, 2015
CompletedFirst Submitted
Initial submission to the registry
October 5, 2015
CompletedFirst Posted
Study publicly available on registry
October 14, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2017
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2018
CompletedResults Posted
Study results publicly available
January 18, 2023
CompletedJanuary 18, 2023
May 1, 2018
2.2 years
October 5, 2015
March 1, 2022
November 25, 2022
Conditions
Outcome Measures
Primary Outcomes (2)
Concentration of Bisphenol A in Saliva
Estimated bisphenol A (BPA) concentration (ng ml-1) in saliva
1 week
Concentration of Bisphenol A in Urine
Estimated bisphenol A (BPA) concentration (ng ml-1) in urine
1 week
Interventions
Eligibility Criteria
Patients scheduled for regular dental examination at the public dental clinic (Bergen Downtown District) and the Dental Clinic of the Student Welfare Organization in Bergen, who are in need for treatment with dental polymer-based filling materials, are suitable for study (inclusion / exclusion criteria) and have given their written informed consent.
You may qualify if:
- Need for filling therapy that involves at least two surfaces with a polymer-based filling material
- Healthy patient without any chronic diseases
- Age 16 - 40 years
- Informed consent given
You may not qualify if:
- Drug abuse
- Smoking
- Use of snuff
- Use of dental splint
- Work at a dental clinic
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- NORCE Norwegian Research Centre ASlead
- Hordaland Countycollaborator
Study Sites (1)
Public dental clinic, Bergen Downtown District AND Dental Clinic of the Student Welfare Organization in Bergen
Bergen, Norway
Related Publications (1)
Berge TLL, Lygre GB, Lie SA, Lindh CH, Bjorkman L. Bisphenol A in human saliva and urine before and after treatment with dental polymer-based restorative materials. Eur J Oral Sci. 2019 Oct;127(5):435-444. doi: 10.1111/eos.12647. Epub 2019 Aug 8.
PMID: 31392814RESULT
Biospecimen
Saliva Urine
Results Point of Contact
- Title
- Dr. Trine Lise Lundekvam Berge
- Organization
- NORCE
Study Officials
- STUDY CHAIR
Lars Björkman, DDS, PhD
NORCE Norwegian Research Centre AS
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
October 5, 2015
First Posted
October 14, 2015
Study Start
October 1, 2015
Primary Completion
December 1, 2017
Study Completion
January 1, 2018
Last Updated
January 18, 2023
Results First Posted
January 18, 2023
Record last verified: 2018-05