Dental Plaque

22

Review clinical trials related to Dental Plaque. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Plaque Removal Efficiency in Children With Specific Learning Disabilities

This study aims to evaluate the effectiveness of toothbrushing education on plaque removal in children aged 7-12 years with specific learning disabilities (SLD) and to compare their plaque removal performance with healthy children. Participants will receive standardized toothbrushing education supported by visual and auditory materials. Plaque Index, Gingival Index, and photograph-based quantitative plaque analyses will be evaluated at baseline and after a 2-week follow-up period.

Participants needed: 70
Trial details
Age: 7-12Biological sex: AllType: InterventionalSponsor: Alanya Alaaddin Keykubat UniversityUpdated: Jun 16, 2026Locations: 1
Eligibility criteria

Diagnosis of specific learning disabilities confirmed by a child and adolescent... [+3]

Children with additional psychiatric diagnoses such as autism spectrum disorder,... [+1]

Status: Recruiting

Comparison of the Effectiveness of Miswak and Manual Toothbrush in Removing Dental Plaque in Fixed Orthodontic Patients

This study compares the immediate plaque removal efficacy of the natural Miswak versus a traditional manual toothbrush using the Modified Bass technique among orthodontic patients. The main question it aims to answer is: Are there statistically significant differences in the post-brushing plaque index reduction between the dental arch side cleaned with Miswak and the contralateral side cleaned with a manual toothbrush?

Participants needed: 90
Trial details
Age: 18-30Biological sex: AllType: InterventionalSponsor: Al-Hawash Private UniversityUpdated: Jun 3, 2026Locations: 1
Eligibility criteria

Patients aged between 18 and 30 years old. [+2]

Presence of advanced or aggressive periodontal diseases. [+4]

Status: Recruiting

Evaluation of a Toothpaste Containing a Gum Health Active in Participants With Gingival Problem

The primary objective of this clinical study is to evaluate the impact on gingival health when participants switch to a fluoride toothpaste without gum-health actives for 4 weeks after using a proven gum-health toothpaste for 13 weeks.

Participants needed: 150
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Unilever R&DUpdated: Apr 30, 2026Locations: 1
Eligibility criteria

Participants need to be competent i.e., able to understand what is to take place... [+4]

Be pregnant or breastfeeding. [+15]

Status: Recruiting

Intraoral Scan and CBCT-Aided Diagnosis of Dental Plaque and Caries

This prospective clinical study aims to evaluate the diagnostic accuracy of intraoral scans (IOS) for the detection of dental plaque and caries. The diagnostic performance of IOS will be compared with current clinical reference standards. For plaque assessment, IOS-based evaluation will be compared with plaque detection using disclosing agents. For caries detection, IOS (including white-light imaging and caries detection features) will be compared with conventional visual inspection and bitewing radiography. Adult patients aged 18 to 70 years will be included.

Participants needed: 50
Trial details
Age: 18-70Biological sex: AllType: ObservationalSponsor: University GhentUpdated: Apr 29, 2026Locations: 1
Eligibility criteria

Adults aged 18 to 70 years [+3]

Conditions that prevent proper intraoral examination (e.g., severe gag reflex, l... [+1]

Status: Not yet recruiting

Disclosing Agents as Photosensitizers in aPDT for Biofilm Control in Children

This randomized controlled clinical trial aims to evaluate the effectiveness of plaque disclosing agents used as photosensitizers in antimicrobial photodynamic therapy (aPDT) for the control of dental biofilm in children aged 3 to 7 years. Participants will be allocated into groups to receive different treatment protocols, and biofilm levels will be assessed before and after the interventions. The primary outcome is the reduction of dental biofilm, aiming to determine whether disclosing agents can be an effective alternative photosensitizer in aPDT for pediatric patients.

Participants needed: 72
Trial details
Age: 3-7Biological sex: AllType: InterventionalSponsor: University of Nove de JulhoUpdated: Apr 20, 2026
Eligibility criteria

Children aged 3 to 7 years [+4]

Presence of systemic diseases [+4]

Status: Recruiting

Clinical Evaluation of the NeoPill Device for Reduction of Oral Bacterial Load in Patients With Fixed Orthodontic Appliances

This study evaluates the effectiveness of the NeoPill oral hygiene device in reducing oral bacterial load in adults wearing fixed orthodontic appliances. Maintaining oral hygiene is challenging for orthodontic patients due to limited access around brackets and wires, and current solutions often rely on chemical-based products and disposable tools. NeoPill is a reusable, battery-operated oral device designed to provide mechanical cleansing of the oral cavity. In this single-arm clinical evaluation, participants will undergo oral swab sampling before and immediately after a single 30-second application of the NeoPill device. The primary outcome is the change in aerobic bacterial load, measured as colony-forming units (CFUs), between pre- and post-treatment samples. Participants will also complete a short questionnaire to assess usability, comfort, and overall experience with the device. The study aims to generate preliminary clinical and user-experience data to support further development of the NeoPill device.

Participants needed: 15
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Neofunction d.o.o.Updated: Apr 9, 2026Locations: 1
Eligibility criteria

Adults aged 18 years or older [+3]

Use of systemic antibiotics within the past 2 weeks [+3]

Status: Recruiting

Effectiveness of Coenzyme Q10 and Probiotics in Periodontal Therapy During Pregnancy

This randomized controlled clinical trial aims to evaluate the effectiveness of adjunctive coenzyme Q10 and probiotic supplementation (Limosilactobacillus reuteri Prodentis®) in improving periodontal health in pregnant women undergoing non-surgical periodontal therapy. Forty participants will be randomly assigned to two groups: the test group will receive professional oral hygiene every three months along with a coenzyme Q10-based toothpaste and daily probiotic supplementation; the control group will follow the same protocol without probiotics. The primary outcome is the reduction of the Plaque Index (PI), while secondary outcomes include Bleeding on Probing (BoP), Probing Pocket Depth (PPD), Clinical Attachment Level (CAL), gingival inflammation (MGI, PMGI), plaque distribution (PCR%, API), and gingival recession (R). The study duration is 6 months. The goal is to assess whether this combined therapy can promote a balanced oral microbiota and enhance periodontal health during pregnancy.

Participants needed: 40
Trial details
Age: 18+Biological sex: FemaleType: InterventionalSponsor: University of PaviaUpdated: Feb 20, 2026Locations: 1
Eligibility criteria

Pregnant women between the 4th and 8th month of gestation [+4]

Presence of cardiac pacemakers [+5]

Status: Recruiting

The Antiplaque and Antigingivitis Effect of Pure Green Tea Mouth Wash Compared to Placebo and Essential Oils Mouth Washes

The goal of this clinical trial is to to evaluate the antiplaque and antigingivitis effect of pure green tea mouthwash compared to placebo and essential oils mouthwashes in healthy patients. The main questions it aims to answer are: * Does pure green tea mouthwash effectively reduce dental plaque? * Does pure green tea mouthwash reduce gingival inflammation? Researchers will compare pure green tea mouthwash to Listerine Total Care, Listerine Green Tea, and placebo to see if there is a difference in plaque accumulation and gum inflammation reduction. Participants will be prohibited from using any sort of oral hygiene parctice for the whole study period (3 weeks). Instead, they will rinse with 10 ml of their assigned mouthwash twice daily for 30 seconds. Plaque index, gingival index, and staining index will be examined at multiple intervals and participants will rate their sense of oral freshness and good breath.

Participants needed: 44
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: King Abdullah University HospitalUpdated: Jan 23, 2026Locations: 1
Eligibility criteria

Non-smokers [+3]

Smokers. [+7]

Status: Recruiting

Probiotic-Based Versus Ethyl Lauroyl Arginate-Containing Mouthwashes on Streptococcus Mutans Counts, Dental Plaque Accumulation, and Salivary pH in a Group of Egyptian School Children

This study aims to compare the efficacy of probiotic-based mouthwashes versus ethyl lauroyl arginate-containing mouthwashes in reducing Streptococcus mutans count, dental plaque accumulation, and salivary pH among a group of Egyptian schoolchildren.

Participants needed: 66
Trial details
Age: 6-12Biological sex: AllType: InterventionalSponsor: Al-Azhar UniversityUpdated: Jan 21, 2026Locations: 1
Eligibility criteria

Healthy Egyptian schoolchildren aged 6-12 years. [+3]

Antibiotic or antimicrobial use within the last month. [+3]

Status: Not yet recruiting

Clear Aligner Cleaning: Brushing, Chlorhexidine, and BlueM Effects on Oral Microbial Ecology and Periodontal Indices

This randomized crossover study will assess how three aligner-cleaning methods affect early supragingival oral microbial ecology and periodontal health in adults using clear aligners. Each participant will complete three (1-month) periods in a randomized sequence with (1-week) washouts between periods: 1. Mechanical toothbrushing with fluoride toothpaste (control), 2. Chlorhexidine (CHX) mouthwash, and 3. an oxygen-based cleanser (BlueM). Primary ecological outcomes focus on early dysbiosis indicators Fusobacterium nucleatum and Prevotella intermedia measured on retrieved aligner inner-surface biofilm and on supragingival plaque at the gingival margin. Secondary outcomes include periodontal indices (plaque index, gingival index, bleeding on probing) at index teeth and the host inflammatory marker MMP-8 in matrix-paired extracts (plaque and aligner). Study visits occur at baseline and at the end of each 1-month period. Supragingival plaque is collected from the upper and lower first molars and central incisors; used aligners are swabbed immediately after removal. Participants are instructed to wear aligners about 22 hours/day, change trays every 10 days, remove aligners for meals and oral hygiene, and drink only water while aligners are in. Laboratory procedures include blinded culture enumeration under coded labels (performed by a single trained operator, FA), confocal laser scanning microscopy, and RNA isolation with species-specific qRT-PCR; microscopy is conducted unblinded after decoding. The study will determine whether chlorhexidine or an oxygen-based cleanser produces more favorable early ecological changes and periodontal outcomes than mechanical brushing alone in clear aligner therapy.

Participants needed: 21
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: Riyadh Elm UniversityUpdated: Jan 8, 2026Locations: 1
Eligibility criteria

Adults (≥18 years). [+6]

Patients requiring orthognathic surgery [+6]

Status: Recruiting

A Clinical Study to Evaluate the Effectiveness of an Experimental Toothpaste in Improving Gum Health and Reducing Plaque Accumulation

The aim of this 24-week clinical study is to evaluate the ability of an experimental dentifrice containing 0.454 percent (%) weight by weight (w/w) Stannous fluoride (SnF2); to improve gingival health, plaque reduction and prevention of plaque accumulation compared with a regular fluoride dentifrice (negative control) in participants with mild to moderate gingivitis.

Participants needed: 300
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: HALEONUpdated: Dec 19, 2025Locations: 1
Eligibility criteria

Participant provision of a signed and dated informed consent document indicating... [+3]

A participant who is an employee of the investigational site, either directly in... [+22]

Status: Recruiting

Comparison Of Clinical Effects Of Listerine And Chlorhexidine Mouth Wash In Patients Undergoing Fixed Orthodontic Treatment

This randomized clinical trial aims to compare the effectiveness of Listerine and Chlorhexidine mouthwashes in improving periodontal health in patients undergoing fixed orthodontic treatment. Gingival Index and Plaque Index will be assessed at baseline, 2 weeks, and 4 weeks.

Participants needed: 60
Trial details
Age: 13-40Biological sex: AllType: InterventionalSponsor: Khyber Medical University PeshawarUpdated: Nov 26, 2025Locations: 1
Eligibility criteria

Aged 13-40 years [+2]

Systemic illness (e.g., diabetes, heart disease, hepatitis) [+5]

Status: Recruiting

Oral Changes With Caloric and no Caloric Sweeteners

The objective of this clinical trial is to compare the effect that the intake of beverages without sweeteners, added with non-caloric sweeteners (stevioside) and caloric sweeteners (sucrose) on oral pH and dental biofilm microbiome in Mexican adolescents. Participants will drink on different occasions a beverage without sweetener, a beverage added with stevioside or a beverage added with sucrose. The researchers will compare the changes that each one causes in salivary pH, dental biofilm pH, dental biofilm bacterial proliferation and dental biofilm microbiome.

Participants needed: 52
Trial details
Phase: Phase 1, Phase 2Age: 12-18Biological sex: AllType: InterventionalSponsor: Hospital Infantil de Mexico Federico GomezUpdated: Oct 9, 2025Locations: 1
Eligibility criteria

Habitual consumption of soft drinks [+4]

Orthodontic treatment [+5]

Status: Not yet recruiting

Digital Quantification of Dental Plaque Based on Intraoral Scanner Images

This diagnostic validation study aims to develop and validate a digital method for dental biofilm quantification using three-dimensional images obtained by an intraoral scanner. Twenty participants will undergo intraoral scanning at three time points: before and after plaque disclosure, and after supervised toothbrushing. The digital method's accuracy will be compared with traditional clinical assessment methods (Turesky Plaque Index).

Participants needed: 20
Trial details
Age: 18-65Biological sex: AllType: ObservationalSponsor: University of GuarulhosUpdated: Sep 3, 2025Locations: 1
Eligibility criteria

Presence of at least 20 natural teeth [+3]

Use of fixed orthodontic appliances [+3]

Status: Recruiting

Antibacterial Photodynamic Therapy as an Adjunctive Treatment on Oral Hygiene in Elderly Persons

On average, the dental condition of elderly people is poor due to various reasons. The importance of oral health maintenance of the ageing population has been recognized by the World Health Organization (WHO), as oral health plays a key role in reaching the global goal of the "Decade of Healthy Ageing 2021-2030". New measures for maintaining good oral health are welcome. The use of antibacterial photodynamic therapy (aPDT) and antibacterial blue light (aBL) has been studied and found to reduce the amount of plaque in the mouth. The Lumoral device is a CE-marked home medical device combining aPDT and aBL, and it is effective in reducing the development of plaque and harmful bacteria in the plaque. The device has also been shown to be easy and safe to use. In this study, a combination of regular dental appointments with the importance of enhanced dental self-care, will be tested as one regional solution for reaching the global goal set by WHO.

Participants needed: 100
Trial details
Age: 65+Biological sex: AllType: InterventionalSponsor: Koite Health OyUpdated: Aug 7, 2025Locations: 3
Eligibility criteria

An elderly (age ≥ 65 years) person living at home or at care home, with a possib... [+3]

Uncontrolled diabetes mellitus (DM) [+6]

Status: Recruiting

Targeting of Preventive Treatment for Adolescents at Risk of Oral Diseases

The aim of the study is to identify adolescent patients that are at risk of developing oral diseases, and to assess if targeted preventive oral treatment with antibacterial dual-light therapy as an adjunctive treatment method can have a positive impact in preventing oral diseases from emerging.

Participants needed: 120
Trial details
Age: 14-16Biological sex: AllType: InterventionalSponsor: Wellbeing Services County of PirkanmaaUpdated: Aug 6, 2025Locations: 1
Eligibility criteria

14-16 years old, and a junior high school 8th-grade pupil from the area of the W... [+2]

Presence of any physical limitation or restriction that might restrict Lumoral u... [+2]

Status: Recruiting

Bacteria in Dental Plaque and Atheroma Plaque

Periodontitis is considered a focus of infection where oral bacteria, bacterial by-products or inflammatory mediators can interact with other parts of the organism via the blood. Periodontal pathogen components such as DNA, RNA or specific antigens of P. gingivalis, Aggregatibacter actinomycetemcomitans (A. actinomycetemcomitans), Treponema denticola (T. denticola), Fusobacterium nucleatum (F. nucleatum) or Campylobacter rectus have been isolated from different tissues such as atheroma plaques, placenta, amniotic sac and respiratory tract. It has been reported that periodontitis may contribute to endothelial dysfunction leading to the formation of atherosclerosis.

Participants needed: 60
Trial details
Age: 18-85Biological sex: AllType: ObservationalSponsor: Istanbul Saglik Bilimleri UniversityUpdated: Aug 3, 2025Locations: 1
Eligibility criteria

Diagnosed with endarterectomy [+2]

Having systemic infection [+1]

Status: Recruiting

Investigation of Biofilm Formation on Temporary push-on Rings of Implant Crowns

This in-vivo study investigates early (48h), mature (2 weeks) and long-term (3 months) biofilm formation and composition on temporary push-on cones (exchangeable conical rings) made of noble-alloy-based materials (Pagalinor, PA) in comparison to Titanium-6Aluminum-7Niobium alloy (TAN) presently used in the transmucosal portion of dental implant abutments.

Participants needed: 33
Trial details
Age: 18+Biological sex: AllType: InterventionalSponsor: University Hospital, Basel, SwitzerlandUpdated: Jul 25, 2025Locations: 1
Eligibility criteria

Informed Consent signed by the subject [+6]

Systemic illness (e.g. Diabetes) [+5]

Status: Not yet recruiting

AI-Generated WhatsApp Reminders vs. No Reminders: Impact on Oral Health in Young Adults

This randomized controlled trial aims to evaluate the effectiveness of artificial intelligence-generated WhatsApp reminders on improving oral hygiene practices among individuals aged 20-40 years visiting the periodontal clinic at El-Qasr El-Ainy Dental Hospital. Participants will be randomly assigned to either receive health education followed by AI-generated WhatsApp reminders over a 3-month period or to a control group receiving health education only. The primary outcome is the presence of white spot lesions, assessed using the modified Gorelick White Spot Lesion (WSL) index. Secondary outcomes include the presence of dental plaque, measured by the Plaque Index (PI). This study seeks to determine whether AI-generated reminders can enhance oral hygiene adherence compared to standard health education alone.

Participants needed: 60
Trial details
Age: 20-40Biological sex: AllType: InterventionalSponsor: Cairo UniversityUpdated: Apr 2, 2025
Eligibility criteria

Received a non-surgical periodontal treatment and oral hygiene instructions. [+2]

Individuals with pre-existing oral health conditions requiring specialized care. [+3]

Status: Not yet recruiting

Comparative Accuracy of AI Models and Clinical Assessment for Dental Plaque Detection in Children

This diagnostic accuracy study aims to evaluate the effectiveness of various artificial intelligence models in detecting dental plaque from intraoral images compared to clinical assessments performed by dentists among children. The study seeks to determine the accuracy, sensitivity, specificity, and overall performance of AI technologies in identifying dental plaque. study study Design: Observational study

Participants needed: 323
Trial details
Age: 7-12Biological sex: AllType: ObservationalSponsor: Naema AhmedUpdated: Jan 6, 2025Locations: 1
Eligibility criteria

Children with developmental enamel defects [+1]

Status: Recruiting

Probiotic Treatment of Orthodontic Patients

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.

Participants needed: 60
Trial details
Age: 10+Biological sex: AllType: InterventionalSponsor: University of AarhusUpdated: Dec 30, 2024Locations: 1
Eligibility criteria

Generally healthy males and females ≥ 10 years of age. [+4]

Significant oral soft tissue pathology based on a visual examination. [+8]

Status: Not yet recruiting

An Investigation of the Efficacy of OHEM for Improving Oral Hygiene in Children

This pilot study evaluates the feasibility of conducting a larger Randomized Controlled Trial to compare three oral health education delivery methods to a control group. Except for the control group, mothers in the three intervention groups will receive the same oral health education based on the OHEM module but differ in the delivery methods, namely lecture, exhibition, and demonstration. All groups will receive a booklet and oral hygiene kits and be instructed to educate their children at home. Pre- and post-intervention assessments include the satisfaction of participants, the researchers' evaluation and cost of the trial, oral hygiene status, and the knowledge of the parents and children.

Participants needed: 540
Trial details
Age: 12-40Biological sex: AllType: InterventionalSponsor: Ziauddin UniversityUpdated: Jul 24, 2024Locations: 1
Eligibility criteria

Mothers with children aged 12 to 15 years old, who are residing in Gulshan-e-Sik... [+2]

Mothers with new-born [+7]