Clinical trials: Tooth Stain
Tooth Discoloration
Marginal Fit of Porcelain Veneers After Finishing Prepared Surfaces With Ultrasonic Tips
The aim of the study is to assess the marginal fit following preparation finishing with ultrasonic tips of porcelain veneers compared to the ordinary preparation using burs only.
- Trial name
- NCT02683499
- Testing
- Ultrasonic tips
- Where
- Syria
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Damascus University
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.
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
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
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
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
Tooth Discoloration
Combined Dental Bleaching Protocols and Time Required to Achieve Satisfactory Color
This parallel, randomized, and controlled clinical trial will assess the effect of a single prior session of in-office dental bleaching on time required to achieve satisfactory tooth color with at-home bleaching.
- Trial name
- NCT03514797
- Testing
- Bleaching Agents
- Where
- Brazil
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- André Luis Faria e Silva
Discoloration, Tooth, Malformed Tooth
Survival of Hybrid Laminate Veneers Using Two Different Tooth Preparation Techniques:Randomized Clinical Trial
The aim of this study was to evaluate the survival of laminate veneers constructed using a recent polymer-infiltrated ceramic network material following the aesthetic pre-evaluative temporary (APT) technique of tooth preparation…
- Conditions
- Discoloration, Tooth, Malformed Tooth, Diastema
- Trial name
- NCT04515069
- Testing
- traditional technique of tooth preparation, aesthetic preevaluative temporary technique for tooth preparation
- Where
- Egypt
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Cairo University
Dental Deposits, Tooth Discoloration
Phototherapy Remediation of Black Stain
This study investigates the remediation of black-stained tooth surfaces using antimicrobial photodynamic therapy. In this crossover trial, a cohort of patients received standard dental prophylactic cleaning to remove the black…
- Conditions
- Dental Deposits, Tooth Discoloration, Dental Prophylaxis
- Trial name
- NCT03309748
- Testing
- Dental prophylaxis, Dental prophylaxis + antimicrobial photodynamic therapy
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Cardenal Herrera University
Dentin Hypersensitivity, Tooth Discoloration
Management of Dentinal Hypersensitivity Using Two Dentifrice Technologies
This study evaluates the effectiveness of Scigates foam mouth sanitizer 2 in 1 toothpaste and mouthwash in reducing tooth sensitivity and improving tooth whitening compared to Lacalut® White \& Repair toothpaste.
- Trial name
- NCT07511530
- Testing
- Scigates Foam Mouth Sanitizer 2 in 1 Toothpaste and Mouthwash, Lacalut White and Repair Toothpaste
- Where
- Jordan
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Prof. Mayyas Al-Remawi