Clinical trials: Staining
Neurologic Findings
Methylene Blue Intra-vital Nerve Staining
In previous studies, we know methylene blue (MB) stains nerves, and oxidized MB has near-infrared (NIR) fluorescence for fluorescent observation.
- Trial name
- NCT05547685
- Testing
- Methylene blue intradermal injection
- Where
- Taiwan
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Sentinel Lymph Node Biopsy, Neoadjuvant Therapy
Clinical Application of Multi-modal Sentinel Lymph Node Staining Method in Breast Cancer Patients After Neoadjuvant Chemotherapy
This clinical trial aimed to confirm the effectiveness of sentinel lymph node surgery by determining the lymph node identification rate using multimodal sentinel lymph node marker methods in patients with advanced breast cancer…
- Conditions
- Sentinel Lymph Node Biopsy, Neoadjuvant Therapy, Breast Neoplasm
- Trial name
- NCT06212440
- Testing
- Radioactive Isotope (RI) Mapping, Indocyanine Green Fluorescence (ICG-F) Mapping, Vital Dye Mapping
- Where
- 2 sites in South Korea
- Volunteers
- 348 people, healthy volunteers welcome
- Sponsor
- National Cancer Center, Korea
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
Normal Healthy Eyes
Staining in a Healthy, Non-Dry Eye Population
The clinical objective of this study is to quantify the levels of corneal and conjunctival staining in a healthy, non-dry eye population. This is a descriptive study without test article administered.
- Trial name
- NCT00643942
- Testing
- No intervention required
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Alcon Research
Herpes Zoster
Month 30 & 42 Extension Studies of CRD-004 Primary Study
The safety and immunogenicity of the GSK324332A vaccine has been evaluated up to Month 12 post-vaccination in the primary study.
- Trial name
- NCT00492648
- Testing
- Blood sampling for assay of persistence of immunogenicity
- Where
- Belgium
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Keratitis
Study of the Presence and Extent of Corneal Disturbance Associated With B+L Biotrue MPS Used With B+L PureVision Lenses
Corneal epithelial disruption, commonly termed "corneal staining" has been frequently associated with contact lens wear. Previous research has demonstrated higher levels of observed corneal staining when certain combinations of…
- Trial name
- NCT01268306
- Testing
- B+L Biotrue MPS and B+L PureVision
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Epstein, Arthur B., OD, FAAO
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
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
Dry Eye Disease (DED), Tear Break-Up Time
Efficacy of 0.28% Sodium Hyaluronate Eye Drops in Patient With Moderate to Severe Dry Eye
This study aimed to evaluate the efficacy and safety of 0.28% preservative-free SH and 0.18% SH eye drops in patients with dry eye disease.
- Conditions
- Dry Eye Disease (DED), Tear Break-Up Time, Tear Disorder, Tear Film Insufficiency
- Trial name
- NCT06860659
- Testing
- 0.28% Sodium Hyaluronate , preservative free eye drops, 0.18% Sodium Hyaluronate , preservative free eye drops
- Where
- Thailand
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Department of Medical Services Ministry of Public Health of Thailand
Bleaching Effect and Postoperative Sensitivity of Strawberry Extract
Bleaching Effect of Strawberry Extract Versus Hydrogen Peroxide in Patients With Extrinsic Staining
with limited evidence based information in literature about using Strawberry extract for teeth bleaching in patients with extrinsic staining , it is beneficial to evaluate this new material using a randomized controlled clinical…
- Trial name
- NCT06287060
- Testing
- strawberry extract.
- Volunteers
- 40 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
Myopia
Investigation of Multi-Purpose Solution-Based Corneal Staining and Ocular Comfort
The primary objective of this study is to compare subjective ocular symptoms and corneal staining over time in a group of individuals who wear soft contact lenses on a daily wear basis, whilst they sequentially use two different…
- Trial name
- NCT00349843
- Testing
- Soft contact lens, Marketed soft lens multipurpose disinfection regimen
- Where
- Canada
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Waterloo
Sperm DNA Impact on ART Outcomes
Impact of Sperm DNA Integrity on Artificial Reproductive Treatment (ART)
The purpose of this study is to establish a new criteria with which to judge the quality of sperm samples submitted for artificial reproductive treatments.
- Trial name
- NCT00875095
- Where
- United States
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Northwell Health
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
Dry Eye Syndromes
Treatment of Dry Eye With Supplements
Dry eye syndrome (DES) is a highly prevalent ocular condition inducing an inflammatory response on the ocular surface. Common symptoms include ocular discomfort, visual impairment and instability of the tear film with potential…
- Trial name
- NCT01364311
- Testing
- Vitamac® Tag and Nacht capsules
- Where
- Austria
- Volunteers
- healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Healthy
Testing Performance and Usability of Q300 Device
A data collection clinical study performed on live human spermatozoa samples. Spermatozoa are imaged by QART Q300TM microscopy system. For the feasibility 1st phase of the study, up to 75 donors are expected to participate.
- Trial name
- NCT04901572
- Testing
- QISI device
- Where
- 4 sites in Israel
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- QART Medical
Port-Wine Stain, Rosacea
Skin Imaging to Inform Laser Treatments
The purpose of this study is to obtain information (such as lesion depth, depth of the most superficial part of the lesion, and the size and density of blood vessels) with the assistance of an imaging device, and use this…
- Conditions
- Port-Wine Stain, Rosacea, Telangiectasia, Angioma
- Trial name
- NCT04336163
- Testing
- Optical Coherence Tomography
- Where
- United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University of California, Irvine
Mouthwashes, Chlorhexidine
Effects of Two Daily CHX Mouthrinses on Plaque, Gingivitis and Staining
Τhe aim of this randomized clinical trial was to investigate the efficacy of two daily mouth rinses containing CHX and different combinations of H2O2 and CPC, when used adjunctive to mechanical oral hygiene, and compare them with…
- Conditions
- Mouthwashes, Chlorhexidine, Dental Plaque, Gingival and Periodontal Disease
- Trial name
- NCT07351370
- Testing
- chlorhexidine/ cetylpyridinium chloride/ hydrogen peroxide mouthwash, Chlorhexidine/ cetylpyridinium chloride
- Where
- Greece
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Dental School
Dry Eye
Clinical Efficacy of Two Topical Dry Eye Drops for Central Corneal Stain Clearing Over 90 Days
This study will be a randomized, double-blind prospective in 3 clinical sites to compare the efficacy of two currently approved topical ophthalmic drops in the clearing central corneal staining in 90 days prior to elective…
- Trial name
- NCT04172961
- Testing
- nanomicellular cyclosporine 0.09%, Lifitegrast
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Toyos Clinic