Clinical trials: Tooth Stain
Tooth Discoloration
Efficacy of a 6% Hydrogen Peroxide Tooth Bleaching Agent
The present study investigates whether it is possible to achieve equally satisfactory results between 37.5% hydrogen peroxide gel and 6% gel for teeth bleaching.
- Trial name
- NCT03217994
- Testing
- gel HP
- Where
- Chile
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- University of Chile
Tooth Discoloration
Safety and Efficacy of the ToothWave Power Toothbrush for Extrinsic Stain Reduction
This study is a single blind, prospective study aimed to evaluate the safety and efficacy of the Silk'n ToothWave Power Toothbrush for stains reduction and improvement of teeth shade.
- Trial name
- NCT03885609
- Testing
- ToothWave, powered toothbrush
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Home Skinovations Ltd.
Tobacco Dependence
A Study on the Effects of Two Nicotine Replacement Products on Tooth Staining
Participants will be smokers who want to quit, and have visible nicotine stains on their teeth. They will be given toothpaste and a toothbrush to use during the study, and will have an equal chance of being assigned to use either…
- Trial name
- NCT01440985
- Testing
- Nicotine
- Where
- Ireland
- Volunteers
- 200 people
- Sponsor
- McNeil AB
Dental Pellicle
A Pilot Drug Trial That Evaluates the Whitening Potential of Nicotine Gum
The purpose of this research study is to evaluate the effects on existing tooth stain of nicotine gum. The study will enroll adults who have visible tooth staining.
- Trial name
- NCT00174499
- Testing
- 2 mg nicotine gum, 4 mg nicotine gum
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- McNeil AB
Stain Removal Efficacy
Extrinsic Tooth Whitening Evaluation of a Whitening Toothpaste
This randomized, examiner-blind, parallel-group clinical study evaluated the effectiveness of a whitening toothpaste compared with a control toothpaste in removing extrinsic tooth stain over six weeks of twice-daily unsupervised…
- Trial name
- NCT07428603
- Testing
- Whitening Test Dentifrice (Code 826), Control dentifrice (Code 378)
- Where
- United States
- Volunteers
- 118 people
- Sponsor
- Church & Dwight Company, Inc.
Tooth Discolouration
16% Carbamide Peroxide Home Bleaching: Soft vs. Rigid Tray in a Randomized Blinded Equivalence Trial
The aim of this clinical study is to evaluate patient satisfaction, bleaching efficacy, and the risk and severity of tooth sensitivity and gingival irritation during home bleaching with 16% carbamide peroxide using conventional…
- Trial name
- Rigid tray (NCT06881654)
- Testing
- Bleaching teeth
- Where
- Spain
- Volunteers
- 100 people
- Sponsor
- Universidad Rey Juan Carlos
Dental Plaque
Comparative Clinical Assessment of Charcoal and Conventional Toothbrushes
Oral hygiene practices are fundamental to maintaining oral health, preventing dental plaque accumulation, halitosis, stains, gingival and periodontal diseases, and improving overall quality of life.
- Trial name
- NCT07563413
- Testing
- charcoal toothbrush
- Where
- Egypt
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Cairo University
Discoloration, Tooth
Prevalence of Teeth Discoloration , Associated Risk Factors and the Most Common Shade Among Group of Egyptian Population
"The aim of this study is to assess the prevalence of tooth discoloration and explore its associated risk factors, including local cultural practices or environmental conditions, among a group of adults aged 20 to 45 years in an…
- Trial name
- NCT06515561
- Volunteers
- 213 people
- Sponsor
- Cairo University
Tooth Discoloration
The Effect of Whitening Toothpaste on Tooth Color Associated With Bleaching Process
This double-blind randomized controlled clinical trial aimed to investigate the effect of whitening dentifrices on the clinical efficiency of in-office tooth bleaching procedures.
- Trial name
- NCT03163069
- Testing
- in-office bleaching with the conventional whitening dentifrice, in-office bleaching with the whitening dentifrice containing blue covarine, in-office bleaching with the regular dentifrice
- Where
- China
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Fujian Medical University
Tooth Discoloration
Clinical Evaluation of Color Stability of Direct Composite Resin Veneers in Vital Anterior Teeth
Assess color stability of direct veneers over an 18-month recall periods
- Trial name
- NCT06510400
- Testing
- OMNICHROMA, Ceram. x spectra
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Tanta University
Fracture, Tooth Discoloration
Clinical Performance of Ceramic Laminate Veneers Made With Celtra Duo Press and IPS e.Max Press Ceramic
The aim of the present study is to assess the clinical performance (patient satisfaction, fracture, shade matching, Marginal adaptation and sensitivity) of laminate veneers made with celtra duo press ceramic and IPS e.max press…
- Trial name
- NCT03713970
- Testing
- celtra duo press, IPS e.max press
- Where
- Egypt
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Bleaching
Efficacy of Two Sonic Toothbrushes in Reducing Extrinsic Tooth Stain
The objective of the present study was to compare the effects of reduction of extrinsic stains between 2 commercially available Oclean sonic toothbrushes in comparison with an Oral-B manual toothbrush.
- Trial name
- NCT05202093
- Testing
- the Oclean Digital Visual toothbrush (2.16 N·cm torque), Oral B manual toothbrush, the Oclean Sonic Electric toothbrush (1.96 N·cm torque)
- Where
- China
- Volunteers
- 129 people, healthy volunteers welcome
- Sponsor
- Sun Yat-sen University
Teeth Staining, Numbness of the Tongue and Soft Tissue
Children Acceptance of AgNP Mouthwash Against Chlorhexidine 0.12% and Chlorhexidine .2% Mouthwashs
This study aims to evaluate and compare the children's acceptance of mouthwash containing silver nanoparticles versus Chlorhexidine 0.12% \& Chlorhexidine 0.2%
- Conditions
- Teeth Staining, Numbness of the Tongue and Soft Tissue, Bitter Taste
- Trial name
- NCT07200063
- Testing
- nano silver mouthwash, Chlorhexidine mouthwash (0.12%), Chlorhexidine mouthwash (0.2%)
- Volunteers
- 93 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Whitening, Tooth Discoloration
Clinical Research Study to Evaluate Stain Removal and Whitening Improvement
The objective of this clinical research study is to evaluate the stain removal and whitening improvement of a toothpaste containing Vitamin C and 1100 ppm F as sodium fluoride as compared to a matching placebo toothpaste…
- Trial name
- NCT07870018
- Testing
- Vitamin C toothpaste
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Colgate Palmolive
Dental Plaque
Prevalence and Risk Factors of Black Tooth Stains
To assess the prevalence of black tooth stains and their relation with caries experience in the primary dentition of 3-5-year-old children.
- Trial name
- NCT05304247
- Testing
- questionnaire and clinical examination
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- Mennatallah Hesham Elsayed Mohamed Ali
Tooth Discoloration
Color Stability of E.Max CAD Laminate Veneers Cemented With Light Cure Versus Dual Cure Amine Free Adhesive Resin Cement
Light curing cements used for laminate veneers may be not totally cured in certain areas, so dual cured resin cements may solve this problem yet the dual cured cements containing amines cause yellowish discoloration of the…
- Trial name
- NCT02943395
- Testing
- E.Max CAD Laminate Veneers cemented with dual cure amine free adhesive resin cement, E.Max CAD Laminate Veneers cemented with light cured adhesive resin cement
- Volunteers
- 16 people
- Sponsor
- Cairo University
Tooth Discoloration
Quantitative Evaluation of the Effect of Dehydration and Rehydration Levels on Tooth Color
This study aims to evaluate the dehydration and rehydration changes in teeth over time and the quantitative effect of these changes on natural tooth color in the clinic.
- Trial name
- NCT05620277
- Testing
- Mobile Dental Photography, Mobile Dental Photography with cross-polarization filter, Mobile Dental Photography with gray reference card
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Marmara University
Tooth Discoloration
A Comparative Study Between the Efficacy of Diode Laser and Nano-chitosan Gel on Activation of Non-vital in- Office Bleaching Agent
The growing demand for white smile between patients has increased over recent years, the development of techniques and improvement of materials permits searching for beautiful natural smile.
- Trial name
- NCT06782087
- Testing
- nano chitosan
- Where
- Egypt
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Misr University for Science and Technology
Black Stains
Assessment of Black Stains on Teeth in Relation to Salivary Parameters, Periodontal Health, and Body Mass Index in Children
Objective The aim of this study is to compare salivary flow rate, salivary pH, salivary buffering capacity, plaque index, gingival index, DMFT/dft indices, and body mass index (BMI) in systemically healthy children aged 5-10…
- Trial name
- NCT06985446
- Testing
- Study Group:Black stain-positive, Control Group: Black stain-negative
- Where
- Turkey (Türkiye)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Akdeniz University
Tooth Discoloration, Tooth Sensitivity
Clinical Efficacy of Novel Titanium Oxide Nanoparticle Enriched Bleaching Gel
The goal of this clinical trial is to learn the effect of Nano-fortified Bleaching on whitening and sensitivity of teeth.The main questions it aims to answer are: Does Nano-fortified Bleaching gel is more effective in enhancing…
- Trial name
- NCT06904118
- Testing
- Nano-reinforced Novel Hydrogen peroxide gel, Conventional Hydrogen peroxide gel without nanoparicles
- Where
- Pakistan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Pakistan Institute of Medical Sciences