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CTRI Number  CTRI/2024/06/068687 [Registered on: 11/06/2024] Trial Registered Prospectively
Last Modified On: 10/06/2024
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Other 
Public Title of Study   Comparative evaluation of stainless steel and hybrid resin polymer crowns 
Scientific Title of Study   Evaluation of clinical success and parental satisfaction following stainless steel versus hybrid resin polymer crowns of mandibular primary molars in 4-9 years old children: a split mouth randomized 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 Divya 
Designation  Postgraduate Resident 
Affiliation  University College of Medical Sciences and GTB Hospital 
Address  Department of Dentistry Second floor OPD Building UCMS and GTB Hospital Dilshad Garden Delhi

East
DELHI
110095
India 
Phone    
Fax    
Email  dvsharmaa@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Rishi Tyagi 
Designation  Professor 
Affiliation  University College of Medical Sciences and GTB Hospital  
Address  Department of Dentistry Second floor OPD Building UCMS and GTB Hospital Dilshad Garden Delhi

East
DELHI
110095
India 
Phone  9868575552  
Fax    
Email  tyagi_rishidoc@hotmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Divya 
Designation  Postgraduate Resident 
Affiliation  University College of Medical Sciences and GTB Hospital 
Address  Department of Dentistry Second floor OPD Building UCMS and GTB Hospital Dilshad Garden Delhi

East
DELHI
110095
India 
Phone  9899389835  
Fax    
Email  dvsharmaa@gmail.com  
 
Source of Monetary or Material Support  
Department of Dentistry Second Floor OPD Building University College of Medical Sciences and GTB Hospital Dilshad Garden Delhi 110095 India 
 
Primary Sponsor  
Name  Dr. Divya 
Address  University College of Medical Sciences and GTB Hospital Dilshad Garden Delhi 110095 
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 Divya  University College of Medical Sciences and GTB Hospital  Department of Dentistry Second floor OPD Building University College of Medical Sciences and GTB Hospital Dilshad Garden
East
DELHI 
9899389835

dvsharmaa@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee Human Research University College of Medical Sciences University of Delhi Delhi-110095  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K029||Dental caries, unspecified,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Hybrid resin polymer crowns   Preformed crowns which are recently introduced are biocompatible flexible and with a snug fit on the tooth. Clinical evaluation and parental satisfaction will be assessed over a period of 12 months. 
Comparator Agent  Stainless steel crowns  Presently the gold standard treatment for crowns are stainless steel crowns. They have excellent clinical performance, affordability and low technique sensitivity . They will be clinically evaluated and their parental satisfaction will be assessed over a period of 12 months. 
 
Inclusion Criteria  
Age From  4.00 Year(s)
Age To  9.00 Year(s)
Gender  Both 
Details  Child with bilateral carious primary molars of same type in mandibular arch (first primary molars of both side or second primary molars of both side) indicated for crown.
Firm tooth with adequate support.
Each primary molar of the pair must have an antagonist tooth.
Primary teeth with at least two-thirds of the root length remaining.
Patient with behavioral rating of definitely positive or positive according to Frankl behavior. 
 
ExclusionCriteria 
Details  Patient with allergy to local anaesthesia, nickel or chromium. Radiographic evidence of teeth with internal resorption and inter-radicular bone loss.
Children with bruxism or deep bite.
Tooth close to natural exfoliation.
Children with special health care needs.
Severely decayed primary molars making retention and the sealing of the restoration difficult.
Primary molars in infra occlusion. 
 
Method of Generating Random Sequence   Coin toss, Lottery, toss of dice, shuffling cards etc 
Method of Concealment   Not Applicable 
Blinding/Masking   Open Label 
Primary Outcome  
Outcome  TimePoints 
To compare clinical outcomes and parental satisfaction (gingival health,plaque accumulation,marginal adaptation,retention TMJ problems wear of opposing teeth,shape size colour durability and overall satisfaction)  Over a period of 1,3,6,9 and 12 months 
 
Secondary Outcome  
Outcome  TimePoints 
To compare clinical outcomes like gingival health, plaque accumulation, retention & parental satisfaction for size, shape, colour in stainless steel versus hybrid resin polymer crowns   Over a period of 1,3,6,9 & 12 months 
 
Target Sample Size   Total Sample Size="20"
Sample Size from India="20" 
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)   30/06/2024 
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="10"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
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   Recently introduced, Hybrid resin polymer crowns are flexible, adaptable and 
durable in oral cavity. They are available as preformed crowns that offer properties of both SSC and 
zirconia crowns. These crowns are biocompatible, flexible and with a snug fit on the tooth. There is a 
scarcity of literature available on Hybrid resin polymer crowns comparing to the crowns traditionally 
available. Therefore, the aim of this study is to clinically evaluate and compare SSC crowns and Hybrid 
resin polymer crowns in primary molars. 
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