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The aim of this study is to evaluate the colonization efficacy of probiotic toothpastes in healthy adults
This is a double blind randomized controlled study with no cross over to evaluate the colonization efficacy of toothpaste containing a commercially available probiotic bacterium Streptococcus salivarius M18.
Participants will be randomly assigned to one of the 3 groups for brushing teeth with a probiotic toothpaste containing different doses of Streptococcus salivarius M18 over a seven day period. Saliva samples will be collected at predetermined time points pre and post intervention. Colonization efficacy will be determined by enumerating the probiotic in the saliva samples using standard microbiological techniques.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Streptococcus salivarius M18 toothpaste dose 1 | Active Comparator | Streptococcus salivarius M18 toothpaste containing 1 million cfu/g |
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| Streptococcus salivarius M18 toothpaste dose 2 | Active Comparator | Streptococcus salivarius M18 toothpaste containing 10 million cfu/g |
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| Streptococcus salivarius M18 toothpaste dose 3 | Active Comparator | Streptococcus salivarius M18 toothpaste containing 100 million cfu/g |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Streptococcus salivarius M18 toothpaste | Other | Probiotics Streptococcus salivarius M18 toothpaste 1 million cfu/g In this study, a toothpaste formulation containing S. salivarius M18 will be evaluated for its potential for delivering the probiotic to the oral cavity. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Microbial colonization from baseline (Day 0) to 1 hour | Study will determine the change in the microbial colonization efficacy of three different doses of S. salivarius M18 in a toothpaste format. Study will determine the change in microbial colonization efficacy of Streptococcus salivarius M18 in a toothpaste format. The saliva Statistical analysis (e.g. ANOVA) will be carried out to compare the participants data from baseline to one hour after later across three different formulations with the level of significance of p≤0.05.Overall colonization based on percentage of population colonized for different interventions will also be analyzed average and standard deviation functions using appropriate statistical analysis software (e.g. Microsoft Excel, GraphPad Prism). | 1 hour post intervention |
| Change in Microbial colonization from baseline (Day 0) to 8 hours | Study will determine the change in the microbial colonization efficacy of three different doses of S. salivarius M18 in a toothpaste format. Study will determine the change in microbial colonization efficacy of Streptococcus salivarius M18 in a toothpaste format. The saliva Statistical analysis (e.g. ANOVA) will be carried out to compare the participants data from baseline to one hour after later across three different formulations with the level of significance of p≤0.05.Overall colonization based on percentage of population colonized for different interventions will also be analyzed average and standard deviation functions using appropriate statistical analysis software (e.g. Microsoft Excel, GraphPad Prism). | 8 hours post intervention |
| Change in Microbial colonization from baseline (Day 0) to 24 hours | Study will determine the change in the microbial colonization efficacy of three different doses of S. salivarius M18 in a toothpaste format. Study will determine the change in microbial colonization efficacy of Streptococcus salivarius M18 in a toothpaste format. The saliva Statistical analysis (e.g. ANOVA) will be carried out to compare the participants data from baseline to one hour after later across three different formulations with the level of significance of p≤0.05.Overall colonization based on percentage of population colonized for different interventions will also be analyzed average and standard deviation functions using appropriate statistical analysis software (e.g. Microsoft Excel, GraphPad Prism). |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| John D Hale, PhD | Contact | +6434740988 | john.hale@blis.co.nz | |
| Rohit Jain, PhD | Contact | +6434740988 | rohit.jain@blis.co.nz |
| Name | Affiliation | Role |
|---|---|---|
| John R Tagg, PhD | Blis Technologies | Principal Investigator |
| Rohit Jain, PhD | Blis Technologies | Principal Investigator |
| John D Hale, PhD |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Blis Technologies Ltd | Recruiting | Dunedin | Otago | 9012 | New Zealand |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 26491371 | Background | Di Pierro F, Zanvit A, Nobili P, Risso P, Fornaini C. Cariogram outcome after 90 days of oral treatment with Streptococcus salivarius M18 in children at high risk for dental caries: results of a randomized, controlled study. Clin Cosmet Investig Dent. 2015 Oct 3;7:107-13. doi: 10.2147/CCIDE.S93066. eCollection 2015. | |
| 32099975 |
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| ID | Term |
|---|---|
| D003141 | Communicable Diseases |
| ID | Term |
|---|---|
| D007239 | Infections |
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
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Participants will be randomly assigned to one of the 3 groups for brushing teeth with a probiotic toothpaste containing different doses of Streptococcus salivarius M18 Study Group A: BLIS M18 Toothpaste (1 Million Cfu/dose) (n = 10) Study Group B: BLIS M18 Toothpaste (10 Million Cfu/dose) (n = 10) Study Group C: BLIS M18 Toothpaste (100 Million Cfu/dose) (n = 10)
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A staff member not part of the study group will be assigned to distribute blinded samples. The participant or the investigators will not be aware of the dose groups.
| Streptococcus salivarius M18 toothpaste | Other | Probiotics Streptococcus salivarius M18 toothpaste 10 million cfu/g In this study, a toothpaste formulation containing S. salivarius M18 will be evaluated for its potential for delivering the probiotic to the oral cavity. |
|
| Streptococcus salivarius M18 toothpaste | Other | Probiotics Streptococcus salivarius M18 toothpaste 100 million cfu/g In this study, a toothpaste formulation containing S. salivarius M18 will be evaluated for its potential for delivering the probiotic to the oral cavity. |
|
| 24 hours post intervention |
| Change in Microbial colonization from baseline (Day 0) to 24 hours post last dose | Study will determine the change in the microbial colonization efficacy of three different doses of S. salivarius M18 in a toothpaste format. Study will determine the change in microbial colonization efficacy of Streptococcus salivarius M18 in a toothpaste format. The saliva Statistical analysis (e.g. ANOVA) will be carried out to compare the participants data from baseline to one hour after later across three different formulations with the level of significance of p≤0.05.Overall colonization based on percentage of population colonized for different interventions will also be analyzed average and standard deviation functions using appropriate statistical analysis software (e.g. Microsoft Excel, GraphPad Prism). | 24 hours after last dose following 7 days of daily brushing with probiotic toothpaste. |
| Blis Technologies |
| Principal Investigator |
| Bardellini E, Amadori F, Gobbi E, Ferri A, Conti G, Majorana A. Does Streptococcus Salivarius Strain M18 Assumption Make Black Stains Disappear in Children? Oral Health Prev Dent. 2020 Apr 3;18(2):161-164. doi: 10.3290/j.ohpd.a43359. |
| 23785463 | Background | Burton JP, Wescombe PA, Macklaim JM, Chai MH, Macdonald K, Hale JD, Tagg J, Reid G, Gloor GB, Cadieux PA. Persistence of the oral probiotic Streptococcus salivarius M18 is dose dependent and megaplasmid transfer can augment their bacteriocin production and adhesion characteristics. PLoS One. 2013 Jun 13;8(6):e65991. doi: 10.1371/journal.pone.0065991. Print 2013. |
| 23449874 | Background | Burton JP, Drummond BK, Chilcott CN, Tagg JR, Thomson WM, Hale JDF, Wescombe PA. Influence of the probiotic Streptococcus salivarius strain M18 on indices of dental health in children: a randomized double-blind, placebo-controlled trial. J Med Microbiol. 2013 Jun;62(Pt 6):875-884. doi: 10.1099/jmm.0.056663-0. Epub 2013 Feb 28. |