Clinical trials: Oral Microbiome
Microbiota
The Oral Microbiota is Associated With Autoimmune Thyroiditis
Autoimmune thyroiditis (AITD) mainly includes Hashimoto's thyroiditis (HT) and Grave's disease (GD). Studies have shown that autoimmune thyroiditis is closely related to microbial disorders such as autoimmune thyroiditis However…
- Trial name
- NCT03447093
- Testing
- Methimazole Pill, Propylthiouracil Pill
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Harbin Medical University
Dental Caries, Periodontitis
Breaking the Cycle: Real-Time Family Oral Microbial Transmission Patterns as Intervention Targets
This study aims to understand how oral bacteria that cause tooth decay and gum disease spread among family members and whether treating multiple family members can reduce the return of these bacteria after dental treatment.
- Conditions
- Dental Caries, Periodontitis, Oral Microbiome, Bacterial Transmission
- Trial name
- NCT07674888
- Testing
- Professional Dental Plaque Disruption
- Where
- Canada
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Human Microbiome
Oral Probiotics on the Shift in Gut Microbiome and Skin Carotenoid Levels
The purpose of this study is to determine how probiotics affects circulating carotenoid levels.
- Trial name
- NCT04841694
- Testing
- Probiotic
- Where
- United States
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Integrative Skin Science and Research
Dental Caries, Oral Bacterial Infection
Ecological Effect of Arginine Dentifrice on Oral Microbiota
caries-free (CF) individuals caries-active (CA) individuals (DMFT ≥ 6) will be recruited. Subjects will be instructed to brush their teeth twice daily for 3 min using Colgate® Sensitive Pro-Relief® toothpaste (containing 8%…
- Conditions
- Dental Caries, Oral Bacterial Infection, Microbiota
- Trial name
- NCT02988349
- Testing
- Colgate® Sensitive Pro-Relief® toothpaste
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Sichuan University
Hepatitis C Viral
Oral Microbiome of Patients With Hepatitis C Virus Infection
Hepatitis C virus (HCV) infection is very common in Egypt and the middle east. The disease affects multiple body organs and may proceed to hepatocellular carcinoma.
- Trial name
- NCT03682549
- Testing
- Oral microbiome analysis
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Hypertension
Effects of Mouthwashes on the Oral Microbiome and Systemic Health
OVERVIEW While antimicrobial mouthwashes are proven to be clinically effective for management of certain oral microbial diseases, recent studies suggest tha, in addition to targeting bacteria responsible for gum diseases such as…
- Trial name
- NCT07356271
- Testing
- Use of mouthwashes
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- University of Plymouth
Oral Lichen Planus
Metagenomic Analysis of the Oral Microbiome in Patients With Oral Lichen Planus: A Pilot Study in the Turkish Population
Lichen planus is a common chronic mucocutaneous inflammatory disease that affects the skin, nails, eyes, urogenital system, and oral mucosa. Oral lichen planus (OLP) specifically occurs in the oral cavity.
- Trial name
- NCT07137156
- Testing
- cytobrush, next-generation sequencing
- Where
- Turkey (Türkiye)
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- Kahramanmaras Sutcu Imam University
Healthy
ButyraGen™, Short Chain Fatty Acids and Gut Microbiome
This study is being conducted to demonstrate short chain fatty acid (SCFA), specifically butyrate, generation in stool, blood and urine in response to oral intake of ButyraGen™.
- Trial name
- BG (NCT05601635)
- Testing
- ButyraGen™
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- Clinical Nutrition Research Center, Illinois Institute of Technology
Gingivitis
Plaque Inhibitory Effect of Neutral Electrolysed Water in the Form of a Mouthwash in a 4-day Non-brushing Model
Electrolysed water (EOW) is produced by the electrolysis of sodium chloride in an aqueous solution, producing chlorine gas at the anode and sodium hydroxide and hydrogen at the cathode.
- Trial name
- NCT05709015
- Testing
- Neutral electrolyzed water, Chlorhexidine digluconate
- Where
- Slovenia
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- University of Ljubljana
Dental Plaque
Probiotic Lactobacillus Reuteri and Oral Microbiota
In February 2013, 44 healthy adults was recruited and randomized to daily intake of lozenges with or without Lactobacillus reuteri strains DSM 17938 and PTA 5289 for 12 weeks.
- Trial name
- OMICI (NCT02311218)
- Testing
- Lactobacillus reuteri DSM 17938 and PTA 5289
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Umeå University
Periodontal Disease, Periodontitis
Antibiotic Resistance Genes in Periodontitis
Antimicrobial resistance (AMR) is a major global public health concern, and the oral microbiome may serve as an important reservoir of antibiotic resistance genes (ARGs).
- Conditions
- Periodontal Disease, Periodontitis, Antibiotic Resistance Genes
- Trial name
- NCT07887204
- Where
- Turkey (Türkiye)
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Istanbul University
Sebum Production, Stool Microbiome
Pilot Study of Triphala and Rubia Cordifolia on Gut Microbiome and Skin
Few studies have assessed the effects of Triphala and Rubia Cordifolia from a skin biophysical perspective. Here, we aim to understand how these herbs can modulate the skin's barrier properties and the gut microbiome.
- Conditions
- Sebum Production, Stool Microbiome, Transepidermal Water Loss, Facial Brrightness
- Trial name
- NCT03477825
- Testing
- Rubia Cordifolia, Triphala
- Where
- United States
- Volunteers
- 35 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Periodontal Diseases, Gastritis
Evaluation of Microbial Status in Gastritis Patients in Different Periodontal Conditions
The aim of this study to evaluate the microbial profile in gastritis and healthy patients in different periodontal conditions via next generation technologies.
- Trial name
- NCT07378540
- Testing
- saliva collection
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Aydin Adnan Menderes University
Dental Caries, Microbial Colonization
Er:YAG Laser Effects on Microbial Population in Conservative Dentistry
The aim of this study is to verify the quantitative and qualitative effect of Erbium dental laser therapy on microbial populations in carious lesions and to compare the laser therapy with traditional conservative therapies.
- Trial name
- NCT04769882
- Testing
- Er:YAG Laser
- Where
- Italy
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University Of Perugia
Dental Plaque
Effect of Enzymes on Dental Biofilm Accumulation in Healthy Individuals
The purpose of the study is to assess the effect of enzyme containing lozenges on dental plaque accumulation in healthy adults.
- Trial name
- NCT05082103
- Testing
- Enzyme lozenge 1, Enzyme lozenge 2
- Where
- Denmark
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Novozymes A/S
Coronary Artery Disease, Arterial Stiffness, Blood Pressure
Expanded Studies on the SCAPIS Stockholm Reexamination Cohort
The Swedish CArdioPulmonary bioImage Study (SCAPIS) is a unique, large-scale national research initiative involving 30,000 randomly selected individuals aged 50-64, recruited between 2014 and 2018.
- Conditions
- Coronary Artery Disease, Arterial Stiffness, Blood Pressure, AORTIC VALVE DISEASES, Mitral Valve Stenosis and/or Insufficiency
- Trial name
- SCAPIS-ReEx (NCT07476703)
- Testing
- Coronary computer tomography (CCTA), Echocardiograhy and aortic ultrasound, Liver elastography
- Where
- Sweden
- Volunteers
- 1,400 people, healthy volunteers welcome
- Sponsor
- Danderyd Hospital
Oral Health, Dietary Nitrate
Evaluating the Impact of Various Dietary Nitrate Supplements on Oral Health
This study aims to investigate the effects of different dietary nitrate supplements, versus placebo, on microbiological and immunological markers associated with oral health in people aged 18-65 years.
- Trial name
- NCT06956612
- Testing
- Juice (Active comparator), Crystals (Experimental)
- Where
- United Kingdom
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Shatha Alhulaefi
Healthy Volunteers
Selection of Antibiotic Resistance by Azithromycin and Clarithromycin in the Oral Flora
Resistance to antibiotics is a major public-health problem and studies linking antibiotic use and resistance have shown an association not a causal effect.
- Trial name
- NCT00354952
- Testing
- Macrolides (azithromycin or clarithromycin)
- Where
- Belgium
- Volunteers
- 203 people, healthy volunteers welcome
- Sponsor
- Universiteit Antwerpen
Periodontal Disease, Atherosclerosis
Assess the Effect of Treating Periodontal Disease on Cardiovascular Function in Young Adults
We propose to examine a population of Native Americans who have had little or no dental care, and to determine if periodontal disease is associated with early signs of vascular dysfunction or systemic inflammation.
- Trial name
- NCT01376791
- Where
- United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- San Diego State University
Gingivitis, Orthodontic Appliance Complication
Influence of Probiotics on Clinical Parameters, the Oral Microbiome and the Immune System During an Orthodontic Treatment
Orthodontic treatment with fixed appliances can be necessary to correct malocclusions in adolescence or adulthood. It its known that orthodontic treatment induces aseptic pseudo-inflammatory reactions.
- Trial name
- NCT04598633
- Testing
- Lactobacillus reuteri Prodentis®-lozenges (DSM 17938, ATCC PTA 5289)
- Where
- Germany
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University of Erlangen-Nürnberg