FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2026/04/107553 [Registered on: 02/04/2026] Trial Registered Prospectively
Last Modified On: 03/04/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   Comparison of pain after single visit root canal treatment in Lase group and control group. 
Scientific Title of Study   EFFECT OF AN 810 NM DIODE LASER ON POST OPERATIVE PAIN AFTER SINGLE-VISIT ROOT CANAL TREATMENT IN TEETH WITH APICAL PERIODONTITIS: 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  Gargi Das 
Designation  PGT 
Affiliation  Awadh Dental College and hospital 
Address  Awadh Dental College And Hospital National Highway 18
Dept. of conservative dentistry and endodontics Room no-3
Purbi Singhbhum
JHARKHAND
831012
India 
Phone  08250075919  
Fax    
Email  imgargidas@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Swarupananda Bera 
Designation  Professor  
Affiliation  Awadh Dental College and hospital 
Address  Awadh Dental College And Hospital National Highway 18
Dept.of Conservative Dentistry and endodontics.
Purbi Singhbhum
JHARKHAND
831012
India 
Phone  08250075919  
Fax    
Email  drsnbera@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Gargi Das 
Designation  PG student 
Affiliation  Awadh Dental College and hospital 
Address  Awadh Dental College And Hospital National Highway 18
Dept. of conservative dentistry and endodontics. Room no-3
Purbi Singhbhum
JHARKHAND
831012
India 
Phone  08250075919  
Fax    
Email  imgargidas@gmail.com  
 
Source of Monetary or Material Support  
NIL 
 
Primary Sponsor  
Name  Awadh Dental College and Hospital 
Address  Jamshedpur Jharkhand Pin-831012 
Type of Sponsor  Other [Private Dental 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 
Gargi Das  Awadh Dental College and Hospital  Dept of conservative Dentistry and endodontics Room no-3
Purbi Singhbhum
JHARKHAND 
08250075919

imgargidas@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Awadh Dental College and Hospital  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K044||Acute apical periodontitis of pulpal origin,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  810 nm diode laser  apllied in root canal for 15 s after BMP 
Comparator Agent  Its Laser not drug  810 nm diode laser in post operative pain.Pain persistence with laser group and placebo group ] 
 
Inclusion Criteria  
Age From  20.00 Year(s)
Age To  50.00 Year(s)
Gender  Both 
Details  60 healthy patients who satisfied the requirements for inclusion were chosen. This study only included
patients with a PAI score of 3 and asymptomatic teeth. Radiographic and clinical investigations were
conducted in order to get a diagnosis.  
 
ExclusionCriteria 
Details  The criteria for exclusion included using antibiotics within the previous month, having systemic disorders,
being pregnant or nursing, having traumatic occlusions, having other teeth that need root canal therapy,
teeth having root canal fillings, having calcified canals, having root resorption, having periodontal
involvement or sinus tracts 
 
Method of Generating Random Sequence   Other 
Method of Concealment   An Open list of random numbers 
Blinding/Masking   Participant Blinded 
Primary Outcome  
Outcome  TimePoints 
Low pain on Laser group than placebo group  1 week 
 
Secondary Outcome  
Outcome  TimePoints 
NIL   
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
Final Enrollment numbers achieved (Total)= "60"
Final Enrollment numbers achieved (India)="60" 
Phase of Trial   N/A 
Date of First Enrollment (India)   25/05/2026 
Date of Study Completion (India) 24/12/2025 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="0"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details
Modification(s)  
Trying for publication  
Individual Participant Data (IPD) Sharing Statement

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

Response - YES
  1. What data in particular will be shared?
    Response - All of the individual participant data collected during the trial, after de-identification.

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan
    Response - Informed Consent Form
    Response - Clinical Study Report

  3. Who will be able to view these files?
    Response - Researchers who provide a methodologically sound proposal.

  4. For what types of analyses will this data be available?
    Response - To achieve aims in the approved proposal.

  5. By what mechanism will data be made available?
    Response (Others) -  collected in the XL sheet

  6. For how long will this data be available start date provided 02-01-2025 and end date provided 02-01-2026?
    Response - Beginning 3 months and ending 5 years following article publication.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - nil
Brief Summary
Modification(s)  
This study was included 60 healthy patients with the need of endodontic treatment in their maxillary 1st premolar with periapical index score 3. After irrigation of each canal with 5.2% sodium hypochlorite canals were dried with paper points. ^0 patients were randomly divided into two groups.
1. Laser Group (n=30): An 810 nm diaode laser activated into canals 1mm short of the  working length with 20ms Pulse duration for 15 s followed by 10 s lapse.  This procedure was repeated thrice.
2. Placebo Group (n=30)= Laser tip was not activated.
After that all root canals were obturated followed by post operative restoration with composite.
Then patients were contacted over phone calls and asked about the pain and number analgesic was taken after 24h, 48h and 7d. Pain was scoring by Visual Analogue scale. Statistically Analysed by chi square test. 
 
Close