Clinical trials: Color
Esthetics, Dental
Evaluation of Dental Bleaching In-office
We aim to evaluate colorimetric changes after supervised whitening treatment, using Violet LED light associated or not with carbamide peroxide 35% gel.
- Trial name
- Bleaching (NCT03192852)
- Testing
- dental bleaching, Gingivoplasty
- Where
- Brazil
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Nove de Julho
Color; Change Teeth, Posteruptive
Clinical Effects of Dehydration on Tooth Colour
Dental restorations should mimic sound tooth structures in terms of color and optical properties especially in the anterior region.
- Trial name
- NCT04290598
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Visual Snow Syndrome, Color Blindness
Study of Visual Perception Phenomena: Phosphene Mapping Induced by TMS and Its Relationship With Eye Movements
The purpose of this basic science study is to better understand human visual perception. Phosphenes are flashes of light that can be induced using Transcranial Magnetic Stimulation (TMS).
- Conditions
- Visual Snow Syndrome, Color Blindness, Healthy Volunteer
- Trial name
- NCT07110493
- Testing
- Transcranial Magnetic Stimulation (TMS), Electroencephalography (EEG), Eye-Tracking
- Where
- Russia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Skolkovo Institute of Science and Technology
Dental Caries, Tooth Discoloration
Color Stability of Darkly Discolored Arrested Caries Lesions Following Bleaching Treatment
This observational study evaluated the color stability of darkly discolored arrested caries lesions (DDACL) on anterior teeth following in-office bleaching with 40% hydrogen peroxide, in comparison with healthy teeth.
- Trial name
- NCT07886255
- Where
- Turkey (Türkiye)
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Selcuk University
Education
The SMARTY Trial: Evaluating the Effects of Colour of Candy on Perceptions of Taste
The purpose of this trial is to determine if the colour of sweets (candy) effects taste.
- Trial name
- SMARTY (NCT04175015)
- Testing
- Smartie© sweet/candy
- Where
- Ireland
- Volunteers
- healthy volunteers welcome
- Sponsor
- National University of Ireland, Galway, Ireland
Diabetic Retinopathy, Retinal Vein Occlusion
Computer Aided Diagnosis of Multiple Eye Fundus Diseases From Color Fundus Photograph
Blindness can be caused by many ocular diseases, such as diabetic retinopathy, retinal vein occlusion, age-related macular degeneration, pathologic myopia and glaucoma.
- Conditions
- Diabetic Retinopathy, Retinal Vein Occlusion, Retinal Artery Occlusion, Central Serous Chorioretinopathy
- Trial name
- NCT04723160
- Testing
- Software assisted imaging diagnosis
- Where
- 5 sites in China
- Volunteers
- 748 people, healthy volunteers welcome
- Sponsor
- Visionary Intelligence Ltd.
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
Healthy
Contribution of a* to Dental Bleaching After Combined Dental Bleaching
A prospective, non-randomized, single-arm interventional clinical study with a before-after design will be conducted to assess changes in CIELab color parameters and the Whiteness Index for Dentistry (WID) following a…
- Trial name
- NCT07560761
- Testing
- Combined Dental Bleaching
- Where
- Spain
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Valencia
HIV Prevention
Optimizing PrEP Utilization Among Alcohol and Other Drug (AOD) Using Women of Color
Nationally, the HIV case rate among black/ African American (AA) women is nearly 20 times higher than in white women; for Hispanic/Latino women it is 4.5 times higher.
- Trial name
- NCT04018651
- Testing
- PrEP Master Adherence Intervention
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Florida International University
Shade Match, Teeth Color
Impact of Presentation Sequence on Patient Tooth Shade Selection
This study is a clinical trial designed to understand how the way a dentist presents tooth color options affects a patient's final choice for their dental treatment.
- Conditions
- Shade Match, Teeth Color, Patient Preference, Aesthetic Perception
- Trial name
- NCT07370545
- Testing
- Sequential Shade Presentation (Natural to Bleached), Sequential Shade Presentation (Bleached to Natural), Simultaneous Shade Presentation (Full Range)
- Where
- Jordan
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- University of Jordan
Molar Incisor Hypomineralisation
Correlation Between Colour and Hypersensitivity of First Permanent Molars With Molar Incisor Hypomineralisation (MIH)
Cheese molars (MIH: molar incisor hypomineralisation) can be recognized not only by their colour abnormalities but also by their hypersensitivity.
- Trial name
- NCT07727044
- Where
- Switzerland
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Basel
Health Behavior
Oral Sialic Acid Product Beauty Efficacy Test
Evaluate and compare the effects on female facial skin of oral placebo (Product A), N-acetylneuraminic acid (Product B), and ACAI-PLUS (Product C) after 28, 56, and 84 days under normal usage conditions.
- Trial name
- NCT07640321
- Testing
- Oral N-acetylneuraminic acid, OralACAI-PLUS
- Where
- China
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Wuhan CASOV Green Biotech Co., Ltd
Mood, Cognitive Change
Hypo-hydration Mood and Cognition
Recently changes in mood and cognition have been reported following minor reductions in hydration status. The aim is to explore that such changes in part at least reflect placebo response; therefore the consumption of plain or…
- Trial name
- NCT03948230
- Testing
- Salt with / without water
- Where
- 2 sites in United Kingdom
- Volunteers
- 162 people, healthy volunteers welcome
- Sponsor
- Swansea University
White Spot Lesion
Evaluation of Two Varnishes on the Improvement of White Spot Lesions in Children
A randomized control trial evaluating the effect of the Giomer varnish versus fluoride varnish on the color improvement of the white spot lesion in permanent anterior teeth of children aged between 8-14 years by using a…
- Trial name
- NCT05775250
- Testing
- giomer varnish
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- October University for Modern Sciences and Arts
Helicobacter Pylori Infection
Diagnosis Ability of Linked Color Imaging for Helicobacter Pylori Infection Compared With White Light Imaging
There are lack of endoscopic criteria for diagnosing Helicobacter pylori (H. pylori) infection by conventional white light imaging (WLI).
- Trial name
- NCT03011437
- Testing
- Esophagogastroduodenoscopy
- Where
- China
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Kashgar 1st People's Hospital
Eye Diseases
Pix2pix Networks for Scheimpflug Corneal Tomography Image Generation
Computer-aided medical image analysis has advantages, but requires large amounts of training data, which are scarce and costly to obtain, are subject to privacy concerns, and are often highly imbalanced, with over-representation…
- Trial name
- NCT04582253
- Testing
- Scheimpflug Camera Corneal Tomography
- Where
- Egypt
- Volunteers
- 923 people, healthy volunteers welcome
- Sponsor
- Assiut University
Impulsive Behavior, Suicidal Impulses
tDCS Applied to the OFC: Effects on Decision-Making and Impulse Control
In this study the investigators aim to assess whether transcranial direct current stimulation (tDCS; a safe and non-invasive method for modulating the activity of specific brain regions) when applied over the orbitofrontal cortex…
- Trial name
- NCT01805401
- Testing
- Transcranial Direct Current Stimulation
- Where
- Canada
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Douglas Mental Health University Institute
Pain, Local Infiltration
Pain Perception With a Comfort-ın Jet Injection and Conventional Dental Injection
The investigators aimed to compare the effectiveness of the Comfort-in system, which is a jet injection type, and infiltrative anesthesia with a traditional injector, and to measure the effect of children's anxiety on the…
- Conditions
- Pain, Local Infiltration, Anesthesia, Fear
- Trial name
- NCT04682080
- Testing
- Needle-free injection
- Where
- Turkey (Türkiye)
- Volunteers
- 94 people, healthy volunteers welcome
- Sponsor
- Tokat Gaziosmanpasa University
Non Therapeutic Body Modification
Post Market Safety Study and Effectiveness With Evolence in Subjects With Skin Color Types IV-VI
Approximately 165 subjects with Fitzpatrick Skin Color Types IV, V, and VI and a moderate to deep wrinkle between the corner of the nose and the corner of the mouth, will be treated with EVOLENCE® (an approved collagen filler) to…
- Trial name
- NCT00891774
- Testing
- EVOLENCE®
- Where
- 11 sites in United States
- Volunteers
- 172 people, healthy volunteers welcome
- Sponsor
- Johnson & Johnson Consumer and Personal Products Worldwide
White Spot Lesion
Effect of Curodont Repair on Color Change of White Spot Lesions
The aim of this study is to compare the effect of color change between remineralizing agent and guided enamel regeneration in treatment of white spot lesion after orthodontic treatments
- Trial name
- NCT02913885
- Testing
- Curodont Repair, fluoride varnish
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Cairo University