Clinical trials: Discoloration of Teeth
Tooth Discoloration
450 nm Blue Diode Laser Versus Blue LED for In-Office Tooth Bleaching
Tooth discoloration is commonly managed using in-office dental bleaching. This randomized clinical trial compared the efficacy and safety of activating the same 35% hydrogen peroxide bleaching gel with either a 450 nm blue diode…
- Trial name
- NCT07870317
- Testing
- 450 nm Blue Diode Laser, Blue Light-Emitting Diode Lamp, 35% Hydrogen Peroxide Dental Bleaching Gel
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Misr University for Science and Technology
Healthy Volunteers, Discoloration of Teeth
Evaluation of Tooth Sensitivity and Whitening Effects of Different Content Teeth Whitening Agents
The goal of this clinical study is to evaluate the success of different whitening agents in whitening teeth in healthy volunteers aged 18-50. Also, patients' tooth sensitivity will be assessed after application.
- Conditions
- Healthy Volunteers, Discoloration of Teeth, Bleaching Sensitivity
- Trial name
- NCT06855940
- Testing
- Bleaching Agents
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Betül Tokat
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
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
Molar Incisor Hypomineralisation, Enamel Hypomineralization
Comparison of Two Minimally Invasive Approaches for Masking Molar-Incisor Hypomineralization Opacities
This clinical study aimed to compare the effectiveness of two minimally invasive approaches for masking molar-incisor hypomineralization (MIH) opacities and to evaluate esthetic perceptions of children and their parents.
- Conditions
- Molar Incisor Hypomineralisation, Enamel Hypomineralization, Tooth Discoloration
- Trial name
- NCT07494682
- Testing
- Resin infiltration, Etch Bleach Seal Technique
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Pamukkale University
Dental Caries in Children
Discoloration of Carious Primary Teeth After Application of Silver Diamine Fluoride Versus Sodium Fluoride Varnish
To assess discoloration of carious primary teeth after application of silver diamine fluoride versus sodium fluoride varnish.
- Trial name
- NCT03557996
- Testing
- Silver Diamine Fluoride, Sodium Fluoride Varnish
- Where
- Egypt
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Discoloration
The Effect of Staining Beverage on Color Alteration During In-office Tooth Bleaching
This double-blind randomized controlled clinical trial aimed to investigate the effect of staining beverage on color alteration of in-office tooth bleaching procedures.
- Trial name
- NCT03933527
- Testing
- making staining beverage rinse during in-office tooth bleaching
- Where
- China
- Volunteers
- 63 people, healthy volunteers welcome
- Sponsor
- Fujian Medical 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, Tooth Fractures
One Year Clinical Evaluation of IPS Empress CAD Versus Polished Celtra Duo Ceramic Laminate Veneers
When restoring teeth with IPS Empress laminate veneers, fracture of restorations may occur. So, material with higher mechanical properties is required.
- Conditions
- Tooth Discoloration, Tooth Fractures, Diastema
- Trial name
- NCT03136276
- Testing
- IPS Empress CAD, polished Celtra Duo
- Volunteers
- 36 people
- Sponsor
- Cairo University
Endodontically Treated Teeth, Missing Teeth
Impression & Prosthesis Quality Made From Different Polyvinylsiloxane Impression Techniques
This randomized controlled trial is to clinically assess and compare impression quality of polyvinylsiloxane impression material using one step (experimental) and two step (control) impression techniques and its effect on…
- Conditions
- Endodontically Treated Teeth, Missing Teeth, Discoloration, Tooth, Prosthesis Failure, Dental
- Trial name
- NCT05938400
- Testing
- Polyvinylsiloxane impression with different techniques
- Where
- Pakistan
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Dow University of Health Sciences
Gingivitis, Healthy Adult
Comparative Evaluation of the Anti-Plaque and Anti-Gingivitis Effects of Nanobiofusion Gingival Gel (NBF), Placebo Gel, and Commercial Toothpaste
The goal of this clinical trial is to learn if Nanibiofusion Gingival Gel (NBF) is able to reduce dental plaque and gum inflammation in adults.
- Trial name
- NCT07850232
- Testing
- Nano Bio-Fusion (NBF) Gingival Gel, Commercial fluoride toothpaste
- Where
- Jordan
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- King Abdullah University Hospital
Tooth Discoloration, Tooth Wear
Evaluation of 2-year Clinical Performance of Two Different Single Color Universal Composite Resin Restorative Materials.
Dentists have recently preferred to use composite materials and restorative techniques that allow the use of simplified clinical protocols in order to reduce the time the patient spends in the dentist's chair and minimize…
- Trial name
- NCT06125132
- Testing
- Restoration with-tooth colored material
- Where
- Turkey (Türkiye)
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Baskent University
Discoloured Teeth
High Light Intensity Bleaching Versus Descending Light Intensities Bleaching on Post Bleaching Teeth Sensitivity
Compare teeth sensitivity using bleaching protocol with different light intensities (Philips Zoom!™ White Speed whitening gel and lamp, Discus Dental, Inc., Culver City, CA, USA.) versus bleaching protocol with the same light…
- Trial name
- NCT02888847
- Testing
- Philips Zoom! White Speed whitening lamp, Philips Zoom! Advanced power whitening lamp
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Cairo University
Tooth Discoloration, Morphologic Change
Influence of Polishing After Bleaching on Color Change and Enamel Morphology
This trial evaluated the influence of polishing on enamel color change after in-office bleaching treatment. It also evaluated the influence of polishing on tooth morphology and sensitivity.
- Conditions
- Tooth Discoloration, Morphologic Change, Tooth Sensitivity
- Trial name
- NCT05635253
- Testing
- Hydrogen Peroxide 35%, Hydrogen Peroxide 35% + Polishing whitened teeth
- Where
- Brazil
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Universidade Federal do Para
Discoloration, Tooth
Effect of Using Shade Blocker Versus Chameleon Effect of Two Single Shade of Resin Composite in Class IV Restorations
Aim of this study will be conducted to compare the shade matching and clinical performance of shade blocker versus chameleon effect of two single-shade of universal resin composite in class IV restorations over 1 year evaluation…
- Trial name
- NCT05315518
- Testing
- single-shade universal resin composite (omnichroma) with blocker( omnichroma blocker)
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Discoloration
Tooth Bleaching for Young Patients Using a Hydrogen Peroxide-based Gel
The aim of the present study was to evaluate colorimetric changes and tooth sensitivity in young patients submitted to tooth bleaching with 20% and 35% hydrogen peroxide.
- Trial name
- NCT02414464
- Testing
- 35% hydrogen peroxide, 20% hydrogen peroxide
- Volunteers
- 53 people, healthy volunteers welcome
- Sponsor
- University of Nove de Julho
Fluorosis, Dental, Enamel Discoloration
The Effectiveness of Antivet Versus Opalustre® for the Management of Enamel Fluorosis/Discolored Enamel and Its Impact on Aesthetic Outcomes.
Dental fluorosis is a developmental enamel defect characterized by discoloration and altered enamel appearance, which may negatively affect dental esthetics and patient satisfaction.
- Trial name
- NCT07707349
- Testing
- Antivet, Opalusture
- Where
- Egypt
- Volunteers
- 59 people
- Sponsor
- October University for Modern Sciences and Arts
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
Teeth Staining
Clinical Efficacy of Antivet Versus Phosphoric Acid and Hydrochloric Acid in Microabrasion
This clinical trial will be conducted to assess the clinical efficacy of using Antivet cleaning enamel solution or hydrochloric acid and phosphoric acid in microabrasion technique for mild to moderate intrinsic stained teeth.
- Trial name
- NCT07709286
- Testing
- (Antivet, MDC DENTAL, Zapopan Jalisco México), Opalustre, phosphoric acid 37% and aluminium oxid 50 microns
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Misr University for Science and Technology
Tooth Discoloration, Hypersensitivity
Composite Repair Using Silane Coupling Agent
Evaluation the influence of the use of silane coupling agent application as a separate step versus application of silane or acid resistance silane containing adhesives on the clinical performance of repaired posterior resin…
- Conditions
- Tooth Discoloration, Hypersensitivity, Tooth Fracture, Dental Restoration Failure of Marginal Integrity
- Trial name
- NCT06392685
- Testing
- Silane coupling agent, Adhesive containing silane.(Intervention 1 ), Acid resistance silane containing adhesive.(Intervention 2)
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Cairo University