Probiotic Treatment of Orthodontic Patients

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age10+
SponsorUniversity of Aarhus

About this trial

The purpose of this study is to examine the effect of treatment with a lozenge containing the probiotic strain S. salivarius M18 on the formation, composition and virulence of dental plaque and in healthy orthodontic patients, compared to placebo control.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

Generally healthy males and females ≥ 10 years of age.

Able to read and receive a copy of the signed informed consent form.

Have at least 20 natural teeth.

Have been undergoing orthodontic treatment with fixed orthodontic appliances in the upper and/or lower jaw > 6 months.

Disqualifiers

Significant oral soft tissue pathology based on a visual examination.

History of allergy or significant adverse events following use of oral hygiene products such as toothpastes, mouth rinses, breath mints, lozenges, or chewing gum or their ingredients.

History of allergies to milk proteins.

History of allergies towards probiotics.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Probiotic treatment

    Dietary supplement

    Daily intake of a lozenge containing the probiotic strain S. salivarius M18.

  • Placebo

    Dietary supplement

    Placebo

Treatment groups

60 Participants
are divided into 2 treatment groups
Group A: ProbioticActive comparator 1 intervention
Group B: PlaceboPlacebo comparator 1 intervention

Trial outcomes

Primary outcomes

1

Planimetric plaque quantification

Amount of dental plaque formed after 6 weeks of probiotic treatment

Time frame
6 weeks

Secondary outcomes

1

Prevalence of S. salivarius

The prevalence and abundance of S. salivarius M18 in saliva, tongue coating and dental plaque samples, as determined by 16S rRNA gene sequencing

Time frame
Immediately after intervention
2

Gingivitis

Gingivitis, as determined by the modified gingival index (MGI) and the sulcus bleeding index (SBI)

Time frame
Immediately after intervention
3

Plaque pH

The acidogenic potential of dental plaque, as determined by pH ratiometry

Time frame
Immediately after intervention

Other outcomes

1

Microbiome composition

The effects of probiotic treatment on the overall composition of the oral microbiome, assessed by next generation sequencing

Time frame
Immediately after intervention

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Aarhus

Lead sponsor

Bluestone Pharma

Collaborator