(IFS/IBDS): Iowa Fluoride Study/Iowa Bone Development Study

Sponsor
Steven M Levy (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT03547128
Collaborator
(none)
1,882
374

Study Details

Study Description

Brief Summary

A cohort of newborns was recruited for the Iowa Fluoride Study from 1992-95 to assess the complex relationships among fluoride intakes, fluoride exposures, dental fluorosis, and dental caries. Detailed questionnaires were sent every 1.5-6 months concerning water sources, fluoride exposures, dietary intakes, etc. Standardized dental exams were conducted at ~ages 5, 9, 13, 17, and 23. At about age 5, participants were invited to join the offshoot Iowa Bone Development Study. Bone densitometry assessments were conducted at ages 5, 8, 11, 13, 15, 17, 19, and 23. These included Dual-energy X-ray Absorptiometry (DXA) of hip, lumbar spine, and whole body from age 5; peripheral Quantitative Computed Tomography (pQCT) of the radius and tibia from age 11; and Multi-Detector Computed Tomography (MDCT) of the tibia from age 19. Physical activity and other factors also were assessed longitudinally.

Condition or Disease Intervention/Treatment Phase

    Detailed Description

    A cohort of newborns was recruited for the Iowa Fluoride Study from 1992-95 to assess the complex relationships among fluoride intakes, fluoride exposures, dental fluorosis, and dental caries. Detailed questionnaires were sent every 1.5-6 months concerning water sources, fluoride exposures, dietary intakes, etc. Standardized dental exams were conducted at ~ages 5, 9, 13, 17, and 23. At about age 5, participants were invited to join the offshoot Iowa Bone Development Study. Bone densitometry assessments were conducted at ages 5, 8, 11, 13, 15, 17, 19, and 23. These included Dual-energy X-ray Absorptiometry (DXA) of hip, lumbar spine, and whole body from age 5; peripheral Quantitative Computed Tomography (pQCT) of the radius and tibia from age 11; and Multi-Detector Computed Tomography (MDCT) of the tibia from age 19. Physical activity and other factors also were assessed longitudinally.

    Study Design

    Study Type:
    Observational
    Actual Enrollment :
    1882 participants
    Observational Model:
    Cohort
    Time Perspective:
    Prospective
    Official Title:
    Iowa Fluoride Study/Iowa Bone Development Study
    Actual Study Start Date :
    Mar 1, 1992
    Actual Primary Completion Date :
    Mar 1, 1996
    Anticipated Study Completion Date :
    May 1, 2023

    Arms and Interventions

    Arm Intervention/Treatment
    Parents with newborns recruited from 1992-5

    Parents of newborns recruited from 8 Iowa hospitals in 1992-5

    Outcome Measures

    Primary Outcome Measures

    1. dental fluorosis-5 [age 5]

      dental fluorosis exam results

    2. dental fluorosis-9 [age 9]

      dental fluorosis exam results

    3. dental fluorosis-13 [age 13]

      dental fluorosis exam results

    4. dental fluorosis-17 [age 17]

      dental fluorosis exam results

    5. dental fluorosis-23 [age 23]

      dental fluorosis exam results

    6. dental caries-5 [age 5]

      dental caries exam results

    7. dental caries-9 [age 5]

      dental caries exam results

    8. dental caries-13 [age 9]

      dental caries exam results

    9. dental caries-17 [age 17]

      dental caries exam results

    10. dental caries-23 [age 23]

      dental caries exam results

    11. bone densitometry-5 [age 5]

      DXA scans

    12. bone densitometry-8 [age 8]

      DXA scans

    13. bone densitometry-11 [age 11]

      DXA and pQCT scans

    14. bone densitometry-13 [age 13]

      DXA and pQCT scans

    15. bone densitometry-15 [age 15]

      DXA and pQCT scans

    16. bone densitometry-17 [age 17]

      DXA and pQCT scans

    17. bone densitometry-19 [age 19]

      DXA, pQCT, and MDCT scans

    18. bone densitometry-23 [age 23]

      DXA, pQCT, and MDCT scans

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    1 Month to 30 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • healthy newborn
    Exclusion Criteria:
    • not health newborn

    Contacts and Locations

    Locations

    No locations specified.

    Sponsors and Collaborators

    • Steven M Levy

    Investigators

    • Principal Investigator: Steven M Levy, dds, University of Iowa

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    None provided.
    Responsible Party:
    Steven M Levy, Professor, University of Iowa
    ClinicalTrials.gov Identifier:
    NCT03547128
    Other Study ID Numbers:
    • 199112665
    First Posted:
    Jun 6, 2018
    Last Update Posted:
    May 12, 2022
    Last Verified:
    May 1, 2022
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Steven M Levy, Professor, University of Iowa
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of May 12, 2022