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Effect of Lozenges Containing Probiotic Lactobacilli on Enamel Demineralization Assed by QLF

Effect of Lozenges Containing Probiotic Lactobacilli on Enamel Demineralization Assed by QLF

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01738958
Enrollment
66
Registered
2012-11-30
Start date
2012-09-30
Completion date
2014-03-31
Last updated
2014-12-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Caries Dentalis

Keywords

Probiotic bacteria, Caries dentalis, QLF

Brief summary

Clinical trials in children and adults have suggested that daily consumption of probiotic lactic acid bacteria can reduce caries risk and caries development in primary teeth in preschool and stop root caries in the elderly. However, it is not known whether probiotic bacteria can affect the increased porosity in young permanent teeth in children and adolescents with many cavities. It can be difficult to measure the increased porosity of the enamel by tooth decay, but this can be done using quantitative laser fluorescence (QLF). The method is based on visible light with a wavelength of 370 nm, addressing enamel. This produces an image consisting of red and green color tones and the dominant color of the enamel is green. Increased porosity of the enamel, resulting in a reduction of the auto-fluorescence and the loss (or gain) of the mineral can be quantified by means of a corresponding software. The purpose of this study is to investigate the effect of a daily supplement of probiotic lactic acid bacteria on the loss of mineral in enamel assessed with QLF. The null hypothesis is that the mineral content will not differ from baseline in either the test group or the placebo group.

Interventions

BIOLOGICALL. retueri

two tablets a day for 6 weeks

BIOLOGICALPlacebo

Sponsors

University of Copenhagen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
12 Years to 17 Years
Healthy volunteers
Yes

Inclusion criteria

* two sites with white spot lesions in anterior teeth

Exclusion criteria

* antibiotic treatment within 2 months

Design outcomes

Primary

MeasureTime frameDescription
Change in enamel porosityBaseine and 12 weeksChange in enamel porosity assed by QLF

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026