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CTRI Number  CTRI/2025/12/099303 [Registered on: 17/12/2025] Trial Registered Prospectively
Last Modified On: 16/12/2025
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A Clinical Study to Evaluate Tooth Colour Improvement Using Three Bleaching Methods in Adults With Moderate Dental Fluorosis 
Scientific Title of Study   Clinical Efficacy of 17% Hydrogen Peroxide alone or in Combination with Cobalt-Tetraphenylporphyrin Complex, Functionalized with Reduced Graphene Oxide for Bleaching in Adults with Moderate Fluorosis 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Dr Vishakha GIrdhar 
Designation  Post graduate student 
Affiliation  Shree Guru Govind Singh Tricentenary University 
Address  B Block, Faculty of Dental Sciences, Room no. 204, Department of Conservative Dentistry and Endodontics, Gurgaon , Harayana

Gurgaon
HARYANA
122505
India 
Phone  9013712245  
Fax    
Email  Vishakha.girdhar74@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Ashtha Arya 
Designation  Professor 
Affiliation  Shree Guru Govind Singh Tricentenary University 
Address  B Block, Faculty of Dental Sciences, Room no. 204, Department of Conservative Dentistry and Endodontics, Gurgaon , Harayana

Gurgaon
HARYANA
122505
India 
Phone  9810761757  
Fax    
Email  ashtha.arya@sgtuniversity.org  
 
Details of Contact Person
Public Query
 
Name  Dr Vishakha GIrdhar 
Designation  Post graduate student 
Affiliation  Shree Guru Govind Singh Tricentenary University 
Address  B Block, Faculty of Dental Sciences, Room no. 204, Department of Conservative Dentistry and Endodontics, Gurgaon , Harayana

Gurgaon
HARYANA
122505
India 
Phone  9013712245  
Fax    
Email  Vishakha.girdhar74@gmail.com  
 
Source of Monetary or Material Support  
NIL 
 
Primary Sponsor  
Name  SGT University 
Address  B Block, Department of Conservative dentistry and Endodontics, Faculty of Dental Sciences, SGT University, Gurgoan 
Type of Sponsor  Research institution and hospital 
 
Details of Secondary Sponsor  
Name  Address 
NIL  NIL 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Vishakha Girdhar  Shree Guru Govind Singh Tricentenary University  B Block, Room no. 204 , Department of Conservative Dentistry and Endodontics, SGT University
Gurgaon
HARYANA 
9013712245

vishakha.girdhar74@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee-SGT Dental College, Hospital and Research Institute (IEC-SGTDCHRI)  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: R688||Other general symptoms and signs, (2) ICD-10 Condition: K037||Posteruptive color changes of dental hard tissues,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  17 percent hydrogen peroxide  Agent to be applied on anterior teeth followed by light activation for 3 cycles. Each cycle is of 8 mins. 
Intervention  17 percent hydrogen peroxide combined with cobalt- tetraphenylporphyrin complex, functionalized with reduced graphene oxide  Agent to be applied on anterior teeth followed by light activation for 3 cycles. Each cycles is of 8 mins. 
Intervention  17 percent hydrogen peroxide combined with cobalt-tetraphenylporphyrin complex   Agent to be applied on anterior teeth followed by light activation for 3 cycles. Each cycles is of 8 mins. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  1. Patients between age group of 18-40 years.
2. Patients with moderate fluorosis in anterior teeth – score 3, classified according to the Dean Fluorosis Index- Modified (1942).
3. Tooth should have enough tooth structure for rubber dam placement.
 
 
ExclusionCriteria 
Details  1. Patient with history of allergy toward any dental material.
2. Patient with fractured maxillary central or lateral incisors.
3. Patients with Class V carious lesions, smoking habit, pregnant, or lactating woman.
 
 
Method of Generating Random Sequence   Coin toss, Lottery, toss of dice, shuffling cards etc 
Method of Concealment   Not Applicable 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
To assess the clinical efficacy of 17% hydrogen peroxide as a bleaching agent in adults presenting with moderate fluorosis stains.  immediately after treatment, 24-hour, 72-hour and 1 week 
 
Secondary Outcome  
Outcome  TimePoints 
To determine the clinical efficacy of 17% hydrogen peroxide combined with cobalt-tetraphenylporphyrin complex for bleaching in adults with moderate fluorosis stains  immediately after treatment, 24-hour, 72-hour and 1 week 
To evaluate the clinical efficacy of 17% Hydrogen Peroxide combined with Cobalt- Tetraphenylporphyrin Complex, functionalized with Reduced Graphene Oxide for bleaching in adults with moderate fluorosis stains  immediately after treatment, 24-hour, 72-hour and 1 week 
To compare and identify the most effective bleaching agent for treating moderate fluorosis stains in adults.  immediately after treatment, 24-hour, 72-hour and 1 week 
 
Target Sample Size   Total Sample Size="45"
Sample Size from India="45" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 2/ Phase 3 
Date of First Enrollment (India)   01/01/2026 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="0"
Months="3"
Days="0" 
Recruitment Status of Trial (Global)   Not Yet Recruiting 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary   This clinical study evaluates the effectiveness of a low-concentration bleaching agent—17 percent hydrogen peroxide—used alone and in combination with a cobalt-tetraphenylporphyrin (CoTPP) complex functionalized with reduced graphene oxide (RGO) for treating moderate dental fluorosis in adults. Fluorosis causes intrinsic enamel discoloration, and current high-concentration bleaching agents may induce sensitivity and enamel changes. The CoTPP/RGO nanocomposite acts as a catalyst to enhance peroxide activity while minimizing side effects. Forty-five patients will be divided into three groups and assessed for shade improvement, sensitivity, and satisfaction using VAS scales. The study aims to identify the most effective, safer bleaching approach. 
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