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CTRI Number  CTRI/2024/08/072430 [Registered on: 13/08/2024] Trial Registered Prospectively
Last Modified On: 10/08/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Accuracy of the heat test, cold test and electric test in finding the health status of the teeth after removing a portion of living tissue in the teeth - a microscopic study 
Scientific Title of Study   Diagnostic accuracy of thermal and electric pulp tests for pulp sensibility assessment after pulpotomy - a histomorphometric study 
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 Pavithra R 
Designation  Junior Resident 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Department of Conservative Dentistry and Endodontics, 3rd floor, Centre for dental education and research, All India Institute of Medical Sciences, New Delhi, Delhi 110029, India

New Delhi
DELHI
110029
India 
Phone  7305520682  
Fax    
Email  pavithrarathinaswamy@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Vijay Kumar 
Designation  Additional Professor 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Room No. 308, Department of Conservative Dentistry and Endodontics, 3rd floor, Centre for dental education and research, All India Institute of Medical Sciences, New Delhi, Delhi 110029, India

New Delhi
DELHI
110029
India 
Phone  9540055001  
Fax    
Email  kumarvijay29@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Pavithra R 
Designation  Junior Resident 
Affiliation  All India Institute of Medical Sciences, New Delhi 
Address  Department of Conservative Dentistry and Endodontics, 3rd floor, Centre for dental education and research, All India Institute of Medical Sciences, New Delhi, Delhi 110029, India

New Delhi
DELHI
110029
India 
Phone  7305520682  
Fax    
Email  pavithrarathinaswamy@gmail.com  
 
Source of Monetary or Material Support  
Department of Conservative Dentistry and Endodontics, 3rd floor, Centre for Dental Education and Research, AIIMS, New Delhi, Delhi 110029, India. 
 
Primary Sponsor  
Name  Centre for Dental Education and Research 
Address  Department of Conservative Dentistry and Endodontics, 3rd floor, Centre for Dental Education and Research, AIIMS, New Delhi, Delhi 110029, India 
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 Pavithra R  All India Institute of Medical Sciences  Department of Conservative Dentistry and Endodontics 3rd floor Centre for dental education and research All India Institute of Medical Sciences New Delhi Delhi-110029
New Delhi
DELHI 
7305520682

pavithrarathinaswamy@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTE ETHICS COMMITTEE FOR POST GRADUATE RESEARCH ALL INDIA INSTITUTE OF MEDICAL SCIENCES ANSARI NAGAR NEW DELHI 110029 Room No 102 1st Floor Old O.T. Block Tel No 4579 (Internal) 26594579 (Direct)  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K049||Other and unspecified diseases ofpulp and periapical tissues,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Pulpotomy  Removal of a part of pulp inside the tooth and replacing it with a calcium silicate based cement. The procedure is done in 15-20 minutes. 
Comparator Agent  Root canal treatment  Removal of the entire pulp inside the tooth and replacing it with sealer and gutta percha material. The procedure is done in 45-60 minutes. 
 
Inclusion Criteria  
Age From  9.00 Year(s)
Age To  30.00 Year(s)
Gender  Both 
Details  1. Young patients with maxillary premolar teeth
indicated for extraction due to orthodontic
reasons and who are willing to volunteer for the
study will be included in the study.
2. Maxillary premolar teeth having occlusal
carious lesions with pulp exposure and
symptomatic irreversible pulpitis.
 
 
ExclusionCriteria 
Details  1. Teeth having cracks, cusp fractures, carious
lesions with pulp necrosis or periapical lesion
and poor periodontal health.
2. Teeth which are not able to be isolated with
rubber dam.
3. Patients with systemic conditions which could
compromise the healing.
4. Patients not willing to participate in the study. 
 
Method of Generating Random Sequence   Permuted block randomization, fixed 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
1. Assessment of the tooth response to cold test after partial and complete pulpotomy
procedure.
2. Assessment of the tooth response to heat test after partial and complete pulpotomy
procedure.
3. Assessment of the tooth response to electric pulp test after partial and complete
pulpotomy procedure.
4. Evaluation of the histological outcome of partial and complete pulpotomy.
5. Establishment of an association between response to pulp sensibility test and
histologic pulp status. 
Patients will be recalled after three months for evaluation of the outcome 
 
Secondary Outcome  
Outcome  TimePoints 
1. Determination of the appropriate site for cotton pellet placement for cold test in
teeth after partial and complete pulpotomy procedure.
2. Determination of the appropriate site for probe placement for heat test in teeth after
partial and complete pulpotomy procedure.
3. Determination of the appropriate site for electrode placement for electric pulp
sensibility test in teeth after partial and complete pulpotomy procedure.
 
Patients will be recalled after three months for evaluation of the outcome. 
 
Target Sample Size   Total Sample Size="72"
Sample Size from India="72" 
Final Enrollment numbers achieved (Total)= "0"
Final Enrollment numbers achieved (India)="80" 
Phase of Trial   N/A 
Date of First Enrollment (India)   21/08/2024 
Date of Study Completion (India) 07/11/2025 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="2"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
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   The pulpotomy procedure is based on the principles of minimal intervention dentistry and is aimed at the preservation of radicular pulp. It has been proposed as an alternative to root canal treatment for the management of carious exposed teeth. Based on the current outcome assessment criteria, the pulpotomy procedure is considered successful if the patient is asymptomatic and the radiograph reveals normal periapical architecture. This provides an indirect assessment of pulp survival after pulpotomy. Pulp sensibility tests, which stimulate the dental nerve fibers, are diagnostic aids for determining the status of pulp in routine clinical practice. It is assumed that the pulpotomized teeth do not respond to pulp sensibility tests due to the absence of coronal pulp tissue and the presence of heavy restoration in the pulp chamber. Therefore, the position statement by the European Society for Endodontology (ESE) does not include the use of a pulp sensibility test in the outcome assessment criteria. On the contrary, the findings of a retrospective study done at our department and limited published literature in peer-reviewed international journals suggests that the pulp sensibility tests can elicit a response in pulpotomized teeth and can be used as a tool to determine the pulp survival after pulpotomy procedure. However, every test, even with the highest level of precision, will misclassify a certain proportion of patients. Hence, it is important to determine the accuracy of a test to classify a patient’s response before it can be proposed as a tool for outcome assessment. To characterize the pulp sensibility test’s accuracy, histological examination is considered as the gold standard reference. Till date to the best of our knowledge, there is no study in the literature that compares the responses of pulp sensibility tests and the histological status of pulp after the pulpotomy procedure (partial or complete) in permanent teeth. Hence, the current study is planned with the primary goal of evaluating the diagnostic accuracy of pulp sensibility tests (thermal and electric pulp test) after partial and complete pulpotomy in permanent teeth. 
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