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CTRI Number  CTRI/2025/08/093895 [Registered on: 29/08/2025] Trial Registered Prospectively
Last Modified On: 29/08/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   Reconstruction Of Black Triangle Using i-PRF And Laser In Patients With Loss Of Interdental Papilla 
Scientific Title of Study   Clinical Efficacy of Injectable Platelet-Rich Fibrin (i-PRF) Versus Hemolaser Therapy for Interdental Papilla Reconstruction in Comparison to Non-Surgical Periodontal Therapy: A Randomized Controlled 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  Dr. Madhumitha M 
Designation  Postgraduate Student 
Affiliation  Manipal College of Dental College 
Address  Room 7 Floor 4 Department Of Periodontology Manipal College Of Dental College KMC Lighthouse hill road Hampankatta

Dakshina Kannada
KARNATAKA
575001
India 
Phone  8489457979  
Fax    
Email  mmitha.16@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Sangeeta U Nayak 
Designation  Professor  
Affiliation  Manipal College of Dental College 
Address  Room 7 Floor 4 Department Of Periodontology Manipal College Of Dental College KMC Lighthouse hill road Hampankatta

Dakshina Kannada
KARNATAKA
575001
India 
Phone  9880718372  
Fax    
Email  sangeeta.nayak@manipal.edu  
 
Details of Contact Person
Public Query
 
Name  Dr Sangeeta U Nayak 
Designation  Professor  
Affiliation  Manipal College of Dental College 
Address  Room 7 Floor 4 Department Of Periodontology Manipal College Of Dental College KMC Lighthouse hill road Hampankatta

Dakshina Kannada
KARNATAKA
575001
India 
Phone  9880718372  
Fax    
Email  sangeeta.nayak@manipal.edu  
 
Source of Monetary or Material Support  
Manipal College of Dental Sciences Mangalore Karnataka India 575001 
 
Primary Sponsor  
Name  Madhumitha M 
Address  Manipal College Of Dental Sciences Mangalore Karnataka India 575001 
Type of Sponsor  Other [Self] 
 
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 
DrMadhumitha M  Manipal College Of Dental Sciences Mangalore  Room 7 Floor 4 Department Of Periodontology Manipal College Of Dental College KMC Lighthouse hill road Hampankatta
Dakshina Kannada
KARNATAKA 
8489457979

mmitha.16@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTIONAL ETHICAL COMMITTEE  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K068||Other specified disorders of gingiva and edentulous alveolar ridge,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Hemolaser Therapy  The modified Hemolaser therapy PBM protocol will begin with the initial PBM application (T1 – First Session) using a 635 nm diode laser at four points: the coronal third, apical third, mesial side, and distal side of the papilla. Bleeding will then be induced inside the sulcus between the papillary defect by applying pressure on the junctional epithelium and supracrestal connective tissue using a 1/3 Gracey curette, allowing stimulated blood to fill the "black triangle" coronal to the interdental papilla, which will be left undisturbed. A second PBM application will then be performed at the same four points after the space is filled with blood. Procedure to be done on day 1 day 5 day 10 Follow up to be done 2 weeks 1 month 3 months 6 months  
Intervention  Injectable Platelet-Rich Fibrin (i-PRF)  10 ml of intravenous blood will be withdrawn from antecubital region and will be centrifuged using plastic tubes (without any additives) in a centrifuge at 700 rpm for 3 min. The needle of the insulin syringe will be inserted 2–3 mm apical to the PT directed coronally making an angle of 45° to the long axis of the tooth with its bevel facing apically. Follow up to be done at 2 weeks 1 month 3 months 6 months 
Comparator Agent  Non-surgical periodontal therapy   The control group treatment will include oral hygiene instructions (OHI), which will cover proper brushing techniques using the Modified Bass technique and routine professional scaling and root planing. AT 2 weeks 1 month 3 month 6 month  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  1.Age group between 18-60 years.
2.Patients with Papilla Presence Index 2 (PPI 2) and Papilla Presence Index 3 (PPI 3) interdental papillary loss score with radiographic evidence of no bone loss (Cardaropoli et al,2004)
3.Patients with a plaque index and gingival index score between zero and one.
4.Patients having Periodontal probing depth less than 3mm
5.Vertical distance from the interdental contact point to the crest of the interdental bone less than 5mm measured from intra oral periapical radiograph.
 
 
ExclusionCriteria 
Details  1.Patients with known systemic disease or blood dyscrasias or on any medication known to interfere with the outcomes of periodontal therapy.
2.Smokers, pregnant women, and nursing mothers.
3.Patients having open contact.
4.Patients having PPI 4 score. (Cardaropoli et al,2004)
5.Previously treated for periodontal reasons before 6 months
 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
1. Papilla presence index
2. Papillary width
3. Papillary height
4. Papillary deficient area
 
1 month
3 months
6 months  
 
Secondary Outcome  
Outcome  TimePoints 
VAS Esthetic Score   1 month
3 months
6 months 
 
Target Sample Size   Total Sample Size="30"
Sample Size from India="30" 
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   N/A 
Date of First Enrollment (India)   01/10/2025 
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="1"
Months="0"
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 randomized controlled trial aims to evaluate and compare the effectiveness of Injectable Platelet-Rich Fibrin (i-PRF) and Hemolaser Therapy in the reconstruction of the interdental papilla, with a non-surgical control group for baseline comparison. The study will be conducted over 6 months to 1 year at the Department of Periodontology, MCODS, Mangalore.

Study Groups include 

  1. Control Group – Receives oral hygiene instructions, supportive periodontal care, and professional cleaning as needed, without regenerative or laser intervention.

  2. Test Group 1: i-PRF – Autologous i-PRF will be prepared by centrifuging 10 ml of blood at 700 rpm for 3 minutes. The obtained fibrin will be injected into papillary-deficient sites using a specific angulated technique under anesthesia, followed by gentle massage of the papilla.

  3. Test Group 2: Hemolaser Therapy – A modified PBMT protocol using a 635 nm diode laser is applied to four points around the papilla. Blood is induced into the papillary space by curettage and then irradiated again. The procedure is repeated on Day 5 and Day 10.

Outcomes Measured

Clinical parameters: papilla fill, tissue volume, and esthetic outcomes

Patient-reported esthetic satisfaction

Stability of regenerated papilla at 1, 3, and 6 months

Analysis:
Photographic evaluation using Image J software with standardized imaging techniques and calibration against a periodontal probe will be used for quantitative assessment.

This study explores the regenerative potential and patient-centered outcomes of i-PRF and Hemolaser Therapy for minimally invasive interdental papilla reconstruction.

 
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