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CTRI Number  CTRI/2026/04/107927 [Registered on: 09/04/2026] Trial Registered Prospectively
Last Modified On: 08/04/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Surgical/Anesthesia
Dentistry 
Study Design  Randomized, Parallel Group, Placebo Controlled Trial 
Public Title of Study   Comparing the effectiveness of a numbing injection with and without an oral painkiller for toothache treatment in lower molar teeth A randomized clinical trial 
Scientific Title of Study   Comparative evaluation of anaesthetic efficacy of 0.5 percentage bupivacaine with oral diclofenac potassium vs 0.5 percentage bupivacaine on inferior alveolar nerve block in patients with symptomatic irreversible pulpitis in mandibular first molar A prospective randomized clinical trial 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Vivek Kalluri 
Designation  Post graduate student 
Affiliation  Government dental college and hospital mumbai 
Address  Government dental college and hospital mumbai ,room no 101,sentz George medical college campus,near CSTM,fort area

Mumbai
MAHARASHTRA
400001
India 
Phone  7499423469  
Fax    
Email  vivekkalluri0@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr. Abrar Sayed  
Designation  Head of Department, Department of Conservative Dentistry and Endodontics 
Affiliation  Government dental college and hospital mumbai 
Address  Government dental college and hospital mumbai ,room no 101,sentz George medical college campus,near CSTM,fort area

Mumbai (Suburban)
MAHARASHTRA
400001
India 
Phone  7499423469  
Fax    
Email  abrars79@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Vivek Kalluri 
Designation  Post graduate student 
Affiliation  Government dental college and hospital mumbai 
Address  Government dental college and hospital mumbai ,room no 101,sentz George medical college campus,near CSTM,fort area


MAHARASHTRA
400001
India 
Phone  7499423469  
Fax    
Email  vivekkalluri0@gmail.com  
 
Source of Monetary or Material Support  
Government dental college and hospital mumbai, Department of Conservative Dentistry and Endodontics,Room no 101, sentz George hospital campus, near CSTM, fort area state maharashtra, district mumbai suburban, country INDIA pin 400001  
 
Primary Sponsor  
Name  Vivek Manohar Kalluri 
Address  Government dental college and hospital mumbai near csmt area fort pin 400001 
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 
Dr Abrar Sayed  Government dental college and hospital mumbai  Department of Conservative Dentistry and Endodontics Division Endodontics Room no 101 First floor
Mumbai (Suburban)
MAHARASHTRA 
96199 42159

abrars79@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional ethical committee Government dental college and hospital mumbai  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K040||Pulpitis,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Bupivacaine 0.5 percentage plus Diclofenac Potassium 50 mg   Bupivacaine o.5 percentage manufactured from anavin Anawin 0.5 percentage Injection is a prescription medication used as a local anesthetic. It is used during minor surgical procedures such as dental, oral, diagnostic, or other therapeutic procedures to anesthetize or numb the surgical area Diclofenac Potassium 50 mg DENSAID Safetab Life Science Puducherry-605 Ic7, India Country of Origin India 
Comparator Agent  bupivacaine 0.5 percentage plus lactose powder   Anawin Bupivacaine injection 0.5 percentage strength is available in 20ml vials, manufactured by Neon, and is used as a local anesthesia to numb areas during or after surgery, childbirth, or dental work, for up to 72 hours post-surgery. stored at 20-25 degree Celcious 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Healthy patients over 18 years old with Symptomatic irreversible pulpitis in first
mandibular molar tooth
Patients who had not taken any analgesics within 6 hours before endodontic treatment.
Patient willing to participate 
 
ExclusionCriteria 
Details  History of allergies or sensitivity to Diclofenac Potassium
History of known allergies or sensitivity to bupivacaine
History of anti-coagulant drug therapy
History of central nervous system depressants therapy
Pregnant or lactating females,
History of active peptic ulcer within the preceding 12 months,
Bleeding problems or bleeding disorders
Not willing to participate.
History of significant medical problems (American Society of Anaesthesiologists class III
or higher)
History of ventricular arrhythmias, hypotension, hypertension, bradycardia,
hemodynamic instability, and cardiovascular collapse 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Pre-numbered or coded identical Containers 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
The primary outcome is the assessment of anaesthetic efficacy by comparing pain scores between the two groups using the Heft-Parker Visual Analog Scale (VAS). Successful anaesthesia is defined as the absence of pain or mild pain (0-4 on the VAS) during access cavity preparation and the first file placement in the distal canal. Failure is recorded if the patient experiences moderate to severe pain (5 or more than 5 on the VAS) at any point during the procedure.  Pain scores will be assessed at the following four time points:

1. Baseline (5 minutes before premedication)
2. 20 minutes after inferior alveolar nerve block administration
3. During access cavity preparation
4. During first file placement in the distal canal of the mandibular first molar

Additionally, patients will be followed up at 24-48 hours post-treatment to evaluate flare-ups and post-operative pain. 
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
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 4 
Date of First Enrollment (India)   25/04/2026 
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="6"
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 prospective randomized double blind clinical trial aims to compare the anaesthetic efficacy of 0.5 percent bupivacaine with oral diclofenac potassium versus 0.5 percent bupivacaine alone for inferior alveolar nerve block in patients with symptomatic irreversible pulpitis in mandibular first molars. A total of 60 patients will be randomly allocated into two groups of 30 each. The experimental group will receive a single oral dose of 50 mg diclofenac potassium one hour before administration of inferior alveolar nerve block with 0.5 percent bupivacaine. The control group will receive a placebo tablet one hour before administration of inferior alveolar nerve block with 0.5 percent bupivacaine. Pain scores will be recorded using the Heft Parker Visual Analog Scale at four time points before premedication after local anesthesia during access cavity preparation and during first file placement. Successful anaesthesia is defined as no pain or mild pain on the  VAS scale. Patients aged over 18 years with symptomatic irreversible pulpitis in mandibular first molars who have not taken analgesics within six hours will be included. Patients with allergies to diclofenac or bupivacaine bleeding disorders pregnancy or significant medical conditions will be excluded.  
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