FULL DETAILS (Read-only)  -> Click Here to Create PDF for Current Dataset of Trial
CTRI Number  CTRI/2018/02/012241 [Registered on: 28/02/2018] Trial Registered Retrospectively
Last Modified On: 27/02/2018
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Comparative evaluation of wear of two types of crowns and opposing natural teeth.  
Scientific Title of Study   Comparative evaluation of the wear of Glazed Zirconia crowns, Polished Zirconia crowns and Opposing natural teeth.- An invivo study. 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  uvashri s 
Designation  junior resident 
Affiliation  CDER, AIIMS. 
Address  2nd floor, Department of Prosthodontics, CDER, AIIMS,New Delhi.
.
New Delhi
DELHI
New delhi- 110029
India 
Phone  9643973479  
Fax    
Email  uvashris@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  VEENA JAIN 
Designation  Head of the department 
Affiliation  CDER, AIIMS. 
Address  2nd floor, Department of Prosthodontics, CDER, AIIMS.

New Delhi
DELHI
New delhi- 110029
India 
Phone  9868187441  
Fax    
Email  jainveena1@gmail.com  
 
Details of Contact Person
Public Query
 
Name  VEENA JAIN 
Designation  Head of the department 
Affiliation  CDER, AIIMS. 
Address  Department of Prosthodontics, CDER, AIIMS.

New Delhi
DELHI
New delhi- 110029
India 
Phone  9868187441  
Fax    
Email  jainveena1@gmail.com  
 
Source of Monetary or Material Support  
Department of prosthodontics, 2nd floor, CDER, AIIMS 
 
Primary Sponsor  
Name  CDER 
Address  CDER, AIIMS, NEW DELHI. 
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 
UVASHRI S  Department of prosthodontics.  2nd floor, Department of prosthodontics, CDER, AIIMS.
New Delhi
DELHI 
9643973479

uvashris@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
INSTITUTE ETHICS COMMITTEE FOR POST GRADUATE RESEARCH  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  Patients requiring crowns in bilateral root canal treated teeth,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  glazed and polished zirconia crowns and opposing natural teeth  wear of glazed, polished zirconia crowns and opposing natural teeth are measured in terms of occlusal surface area and volume immediately and 1 year after cementation of crowns. 
Comparator Agent  natural teeth opposing natural teeth  wear of natural teeth opposing natural teeth is measured and compared with the intervention group 
 
Inclusion Criteria  
Age From  20.00 Year(s)
Age To  45.00 Year(s)
Gender  Both 
Details  Patients requiring bilateral posterior complete crowns.
Teeth with minimal crown to root ratio of atleast 1:1
Teeth with healthy opposing natural teeth.
Patients with good oral hygiene and periodontal status, with full complement of teeth(excluding 3rd molars),who will be available for required follow up period.
Patients giving positive informed consent. 
 
ExclusionCriteria 
Details  Patients with developmental defects of enamel and dentin, parafunctional habits like bruxism, clenching.
Temperomandibular disorders,
Patients with fluorosis, calcium metabolic disorders, osteoporosis,etc.
Opposing teeth with caries or attrition
Patients having posterior crossbite. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Other 
Blinding/Masking   Participant and Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
wear of glazed and polished zirconia crowns opposing natural
teeth 
1 year. 
 
Secondary Outcome  
Outcome  TimePoints 
evaluate the wear of natural teeth opposing polished and glazed zirconia
crowns
To compare the wear of glazed and polished zirconia crown with each other and
control 
1 year 
 
Target Sample Size   Total Sample Size="10"
Sample Size from India="10" 
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 2 
Date of First Enrollment (India)   04/12/2017 
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="6"
Days="15" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Open to Recruitment 
Publication Details   none yet 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary   To improve the esthetic property of Zirconia crowns, they are either glazed or polished. There is in-vitro studies which compares the wear potential of glazed and polished zirconia crowns. But clinical scenario is different. Hence comparing the wear of glazed, polished zirconia crowns and opposing natural teeth is essential. 
Close