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CTRI Number  CTRI/2026/03/105598 [Registered on: 09/03/2026] Trial Registered Prospectively
Last Modified On: 07/04/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   A Study Comparing Healing, Pain and Recurrence of Gum Pigmentation After Surgical, Diode Laser and Microneedling Depigmentation Methods 
Scientific Title of Study   A COMPARATIVE ANALYSIS OF HEALING, REPIGMENTATION AND PAIN DURING GINGIVAL DEPIGMENTATION USING CONVENTIONAL SURGICAL METHOD, DIODE LASER AND MICRONEEDLING – A RANDOMIZED CLINICAL TRIAL 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Kena Gajjar 
Designation  Post Graduate student 
Affiliation  College of Dental Science and Hospital, Amargadh 
Address  Shivdhara appatment, nr. Takteshwar temple, Bhavnagar
College of Dental Science and hospital, K.J. Mehta T.B. trust, Amargadh, Sihor, Bhavnagar, Gujarat 364210
Bhavnagar
GUJARAT
364001
India 
Phone  7227895224  
Fax    
Email  kenig2209@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Ashok KP 
Designation  PG guide and Head of the Department  
Affiliation  College of Dental Science and hospital 
Address  College of Dental Science and hospital, K.J. Mehta T.B. trust, Amargadh

Bhavnagar
GUJARAT
364210
India 
Phone  7049754198  
Fax    
Email  drashokkp@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Ashok KP 
Designation  PG guide and Head of the Department  
Affiliation  College of Dental Science and hospital 
Address  College of Dental Science and hospital, K.J. Mehta T.B. trust, Amargadh


GUJARAT
364210
India 
Phone  7049754198  
Fax    
Email  drashokkp@gmail.com  
 
Source of Monetary or Material Support  
College of Dental Science and hospital, amargadh, Bhavnagar 364210 
 
Primary Sponsor  
Name  College of Dental Science and hospital 
Address  College of Dental Science and hospital, K.J Mehta trust, Amrgadh, Sihor, Bhavnagar 364210 
Type of Sponsor  Private medical college 
 
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 Kena Gajjar  CODS Amargadh  Department of Periodontics division P IX-Perio College of dental science and hospital, K.J mehta trust, Amargadh, Sihor, Bhavnagar, GUJARAT 364210
Bhavnagar
GUJARAT 
72278 95224

kenig2209@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethical Commitee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Bimaxillary melanin hyperpigmentation 
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Conventional Surgical method  • In group 1 participant, after achieving local anesthesia, 15 no. BP blade will be used for scraping the gingival epithelium and a layer of connective tissue. 
Intervention  Diode LASER  • In group 2 participant, after achieving local anesthesia, pigmented gingiva will be ablated by Diode LASER at wavelength of 450nm at 2 watt power in a continuous wave mode with a flexible fiber optic delivery system taking all precautions to safeguard the patient. 
Intervention  Microneedling  • In group 3 participant, after achieving local anesthesia, microneedling will be done using Dermapen. 
 
Inclusion Criteria  
Age From  15.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  •15 - 40 years age group
•Both Male and Female
•Periodontally healthy subjects
•Bimaxillary melanin hyperpigmentation in the facial aspects of anterior regions with moderate or heavy clinical pigmentation according to Dummett and Gupta index.
 
 
ExclusionCriteria 
Details  •Systemically compromised Patients
•Patient with smoking habit
•Patient using drugs with potential to cause oral pigmentation
•Pregnant and lactating women
•Subjects with thin gingival biotype
 
 
Method of Generating Random Sequence   Coin toss, Lottery, toss of dice, shuffling cards etc 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
   
 
Secondary Outcome  
Outcome  TimePoints 
   
 
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 1/ Phase 2 
Date of First Enrollment (India)   18/03/2026 
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="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
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  

15-40 years aged patients reporting to the Department of Periodontology at the College of Dental Science and hospital, Amargadh with bimaxillary melanin hyperpigmentation in the facial aspects of anterior regions will be considered inclusion criteria for the study. A total of 45 patients will be selected for the study to evaluate and compare the healing, repigmentation and pain during gingival depigmentation using conventional surgical method using scalpel, Diode LASER and microneedling. This study will be done to evaluate whether microneedling can be considered a better alternative for depigmentation over Diode LASER and conventional scalpel method.


 
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