Clinical trials: Staining
Dental Calculus, Tooth Discoloration
Staining and Calculus Formation After 0.12% Chlorhexidine Rinses
The presence of plaque on tooth surfaces as a predictor of chlorhexidine side effects has not been evaluated especially because most studies utilized a previous disruption of biofilms in all dental surfaces before the beginning…
- Trial name
- NCT00818376
- Testing
- Dental prophylaxis
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Lutheran University of Brazil
Esthetic Restorations
Effect of One-step Versus Multistep Polishing Protocol on Class IV Composite Restorations.
This study aims to evaluate the effectiveness of various finishing and polishing techniques for composite resins used in dental restorations, with a focus on minimizing discoloration and surface roughness over time.
- Trial name
- NCT06732115
- Testing
- One-step polishing system with nanohybrid resin composite restorations., Multistep system polishing system Super-Snap X-treme (Shofu) with nanohybrid resin composite restorations.
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Cairo University
Dental Caries in Children
Efficacy of Silver Diamine Fluoride and Its Parental Perception
This randomized clinical trial aims to compare the effectiveness of two topical fluoride application protocols, namely 38% silver diamine fluoride and sodium fluoride with added casein phosphopeptide-amorphous calcium phosphate…
- Trial name
- NCT04213573
- Testing
- silver diamine fluoride, MI Varnish
- Where
- Iraq
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Adverse Effect
Anti-staining Efficacy of Anti-Discoloration System (ADS) Added to Chlorhexidine (CHX)
Dental staining is the most common local side effect of chlorhexidine (CHX) mouthwashes. A prospective, cross-over, randomized clinical trial will be carried out in triple blind to compare the effect on dental staining of two…
- Trial name
- CHX+ADS (NCT02709824)
- Testing
- Chlorhexidine gluconate with ADS, Chlorhexidine gluconate without ADS
- Where
- Italy
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Milan
Black Stains
Investigating the Bactericidal Effect of Probiotics on Chromogenic Bacteria in Children An In Vivo and In Vitro Study
To investigate the bactericidal effect of probiotics (Streptococcus salivarius M18 and Lactobacillus reuteri) on two types of bacteria (Aggregatibacter actinomycetemcomitans and Actinomyces naeslundii) causing black stains of…
- Trial name
- NCT06834815
- Testing
- Probiotic with Prebiotic
- Where
- Egypt
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Corneal Epithelial Disruption, Corneal Staining
Evaluation of Corneal Staining With Various Contact Lens/Solution Combinations
The purpose of this study is to quantify the amount of corneal staining observed with various marketed contact lens/multipurpose solution combinations.
- Trial name
- NCT00381446
- Testing
- Marketed contact lens care products
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Andrasko, Gary, OD, LLC
Gastrointestinal Neoplasms, Abnormality of Enteric Nervous System Morphology
Endoscopic Vital Nerve Staining in Gastrointestinal Diseases
In this study, methylene blue (MB) was used as vital nerve staining agent. During gastroenteroscopy, mucosal nerve staining was achieved by endoscopic submucosal injection of MB solution.
- Trial name
- NCT05232357
- Testing
- Sodium thiosulfate and Methylene blue solution
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Affiliated Hospital to Academy of Military Medical Sciences
Whitening
Efficacy of a Toothpaste Containing Hydrogen Peroxide as Compared to a Regular Fluoride Toothpaste Without Hydrogen Peroxide in the Immediate Removal of Tooth Stains After a Single Brushing.
The aim of this study is to evaluate and compare the immediate efficacy of a hydrogen peroxide-containing toothpaste versus a regular fluoride toothpaste without hydrogen peroxide in removing extrinsic tooth stains following a…
- Trial name
- NCT07276672
- Testing
- Optic White Adv Sparkling White (2%HP) Toothpaste, Colgate Great Regular Flavor Toothpaste
- Where
- Dominican Republic
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Colgate Palmolive
Contact Lens Wear
Compliance and Contamination in Soft Contact Lens Wearers
The purpose of this study is to assess the lens and lens case microbial colonization associated with marketed care solutions used by experienced soft lens wearers.
- Trial name
- NCT01069237
- Testing
- OPTI-FREE RepleniSH, Clear Care
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Chronic Gingivitis
Efficacy of Cuminum Cyminum Herbal =Preparation in Inhibition of Plaque and Gingivitis.
Present work was to investigate the possible efficacy of 0.2% cuminum cyminum herbal preparation as an antiplaque and antigingivitis agent when compared with chlorhexidine.
- Trial name
- NCT04767269
- Testing
- Cuminum Cyminum, herbal Mouthwash
- Where
- India
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Maharishi Markendeswar University (Deemed to be University)
Abrasion, Discoloration, Tooth
Enamel Abrasion and Stain Removal Efficacy
Enamel abrasion and stain removal efficacy of two whitening toothpastes
- Trial name
- NCT05619315
- Testing
- Charcoal -based whitening toothpaste, Calcium carbonate /perlite containing whitening toothpaste.
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Discoloration, Tooth Staining
Peroxide Versus Non-Peroxide In-Office Tooth Bleaching
This randomized clinical trial aims to compare the effectiveness of peroxide and non-peroxide in-office tooth bleaching systems.
- Trial name
- BECTS (NCT07818031)
- Testing
- peroxide -based in office tooth bleaching, non-peroxide -based in office tooth bleaching
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Minia University
Teeth Staining
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic Stains) Over 8 Weeks of Unsupervised Use.
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic…
- Trial name
- NCT07219342
- Testing
- Toothpaste
- Where
- United States
- Volunteers
- 109 people, healthy volunteers welcome
- Sponsor
- Boka LLC
Gingivitis, Periodontal Diseases
Changes in Oral Health in Tobacco Cigarettes Smokers After Switching to Combustion-Free Nicotine Delivery Systems
Although the well-known detrimental effects of conventional cigarette smoking on oral health, there are still lack of evidences about the impact of less harmful alternatives (such as electronic cigarettes or heat not burn…
- Trial name
- SMILE (NCT04649645)
- Testing
- TOBACCO CIGARETTES, COMBUSTION-FREE NICOTINE DELIVERY SYSTEMS (C-F NDS), NOT SMOKING
- Where
- Italy
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- Eclat Srl.
Laser Hair Removal in Healthy Subjects
The Effect of Laser Hair Removal on Permanent Hair Reduction
The purpose of this study is to learn more about how hair removal with lasers achieves, what appears to be, permanent hair reduction.
- Trial name
- NCT00279643
- Testing
- Laser Hair Removal
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Michigan
Dental Plaque, Tooth Discoloration
aPDT for the Remediation of Dental Black Stain
In today's society cosmetic dentistry plays an important role in social relationships and in important aspects of life such as job applications and recruitment processes.
- Trial name
- NCT03483376
- Testing
- Dental prophylaxis, Antimicrobial photodynamic therapy (aPDT)
- Where
- Spain
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cardenal Herrera University
Teeth Staining
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Sensitive Whitening Toothpaste, Containing 5% KNO3 (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic Stains Over 4 Weeks of Unsupervised Use.
The Purpose of This Research Study is to Compare the Effectiveness of a Non-fluoride Whitening Toothpaste (Test) to That of a Non-whitening Fluoride Toothpaste (Negative Control) in Improving Tooth Whiteness (Removal of Extrinsic…
- Trial name
- NCT07761715
- Testing
- Toothpaste
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Boka LLC
Tooth Discoloration
A Study to Assess the Efficacy of an Experimental Mouthwash Used With a Marketed Whitening Toothpaste on Stain Build-up
The aim of this clinical study is to evaluate the efficacy of an experimental mouthwash used with a marketed whitening toothpaste or a marketed regular fluoride toothpaste, compared to a marketed regular fluoride toothpaste…
- Trial name
- NCT07836998
- Testing
- Whitening Toothpaste, Experimental Mouthwash, Regular Fluoride Toothpaste
- Where
- United States
- Volunteers
- 360 people, healthy volunteers welcome
- Sponsor
- HALEON
Tooth Color
Intervening Factors in Tooth Color Assessment
The aim of this study is to evaluate the influence of several factors (light, extrinsic stain removal and operator's experience) in tooth color assessment.
- Trial name
- NCT03544658
- Testing
- Dental prophylaxis, Tooth color assessment by the participant, Tooth color assessment by the investigator
- Where
- Portugal
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Grupo de Investigação em Bioquímica e Biologia Oral
Corneal Staining
Assessment of Tear Film-Based Proteins Associated With Care Solution Induced Corneal Staining
The purpose of this study was to investigate the association of inflammatory mediators found in the tear film during the development and following the induction of contact lens solution-induced corneal staining.
- Trial name
- NCT01100424
- Testing
- Opti-Free RepleniSH, ReNu MultiPlus, Balafilcon A
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Alcon Research