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CTRI Number  CTRI/2024/04/066074 [Registered on: 22/04/2024] Trial Registered Prospectively
Last Modified On: 20/04/2024
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group Trial 
Public Title of Study   Comparison of loss of CAD-CAM crown surface and opposing natural teeth surface.  
Scientific Title of Study   Comparative evaluation of occlusal wear of CAD-CAM fabricated Zirconia, Zirconia-reinforced Lithium Silicate, Graphene crowns and their antagonist natural teeth at three different time intervals. A Prospective in-vivo 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 Yogesh S Ingole  
Designation  Assistant Professor 
Affiliation  Government Dental College and Hospital, Nagpur.  
Address  Department of Prosthodontics and Crown & Bridge, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur.

Nagpur
MAHARASHTRA
440003
India 
Phone  9960568700  
Fax    
Email  dr.ysingole@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Yogesh S Ingole  
Designation  Assistant Professor 
Affiliation  Government Dental College and Hospital, Nagpur.  
Address  Department of Prosthodontics and Crown & Bridge, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur.

Nagpur
MAHARASHTRA
440003
India 
Phone  9960568700  
Fax    
Email  dr.ysingole@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Dr Yogesh S Ingole  
Designation  Assistant Professor 
Affiliation  Government Dental College and Hospital, Nagpur.  
Address  Department of Prosthodontics and Crown & Bridge, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur.

Nagpur
MAHARASHTRA
440003
India 
Phone  9960568700  
Fax    
Email  dr.ysingole@gmail.com  
 
Source of Monetary or Material Support  
Department of Prosthodontics and Crown and Bridge, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur, Maharashtra, India. 440003  
 
Primary Sponsor  
Name  Dr Yogesh S Ingole 
Address  Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur, Maharashtra, India. 440003. 
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 Yogesh S Ingole  Government Dental College and Hospital, Nagpur.   Room No. 13, Department of Prosthodontics, Government Dental College and Hospital, Medical Campus, Medical Square, Nagpur 440003, Maharashtra, India.
Nagpur
MAHARASHTRA 
9960568700

dr.ysingole@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
VSPMs Dental College and Research Centre  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Healthy human volunteers requiring crowns on first molar teeth. 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Graphene  Graphene crowns will be cemented and occlusal wear against opposing teeth will be calculated for a period of eighteen months. Occlusal Wear between natural teeth will be taken as a control in the study. Total Duration of study will be 2 years. 
Comparator Agent  NA  NA 
Intervention  Zirconia  Zirconia crowns will be cemented and occlusal wear against opposing teeth will be calculated for a period of eighteen months. Occlusal Wear between natural teeth will be taken as a control in the study. Total Duration of study will be 2 years. 
Intervention  Zirconia-reinforced Lithium Silicate  Zirconia-reinforced Lithium Silicate crowns will be cemented and occlusal wear against opposing teeth will be calculated for a period of eighteen months. Occlusal Wear between natural teeth will be taken as a control in the study. Total Duration of study will be 2 years. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  50.00 Year(s)
Gender  Both 
Details  a) Age: 18 to 50 years
b) Endodontically treated Tooth#16, tooth#26, tooth#36 or tooth#46 requiring full coverage crown.
c) Healthy, unrestored opposing natural teeth
d) Fully dentate patients showing canine-guided occlusion
e) Willing patients 
 
ExclusionCriteria 
Details  a) Age less than 18 years and more than 50 years
b) Missing or restored opposing natural teeth
c) Opposing teeth with partial or complete denture prosthesis
d) Opposing implant-supported restorations
e) Patients showing signs of developmental enamel defects, fluorosis, parafunctional habits, temporomandibular joint disorders and osteoporosis.
f) Patients showing occlusal discrepancies like attrition, abrasion.
g) Patients undergoing orthodontic treatment.
h) Medically compromised patients.
i) Un-willing patients.  
 
Method of Generating Random Sequence   Permuted block randomization, fixed 
Method of Concealment   Case Record Numbers 
Blinding/Masking   Participant Blinded 
Primary Outcome  
Outcome  TimePoints 
The occlusal wear of CAD-CAM fabricated
Zirconia, Zirconia-reinforced Lithium Silicate
(ZLS), Graphene crowns and their antagonist
natural teeth at three different time intervals. 
The occlusal wear of CAD-CAM fabricated
Zirconia, Zirconia-reinforced Lithium Silicate
(ZLS), Graphene crowns and their antagonist
natural teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, and 18 months period. 
 
Secondary Outcome  
Outcome  TimePoints 
The change in occlusal contact area distribution
between CAD-CAM fabricated Zirconia,
Zirconia-reinforced Lithium Silicate (ZLS),
Graphene crowns & their antagonist natural
teeth at three different time intervals. 
The change in occlusal contact area distribution
between CAD-CAM fabricated Zirconia,
Zirconia-reinforced Lithium Silicate (ZLS),
Graphene crowns & their antagonist natural
teeth at three different time intervals, i.e. at baseline, 6 months, 12 months, & 18 months period. 
 
Target Sample Size   Total Sample Size="75"
Sample Size from India="75" 
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)   02/05/2024 
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="2"
Months="0"
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  
The computer-aided design computer-aided manufacturing (CAD-CAM) systems have been advanced dramatically over the last two decades. Recently, technological developments in CAD-CAM systems have enabled clinicians and dental laboratories to manufacture various kinds of restorations using different materials. Wear of tooth structure is a natural unavoidable process which occurs when tooth and tooth, or tooth and
restoration are in contact and slide against each other. However, this natural process may be accelerated by the introduction of restorations whose properties of wear differ from those of the tooth structure that they slide against. So, this study evaluates the in-vivo wear of different CAD-CAM fabricated crowns and their antagonists; which may influence the occlusal contact areas between these occluding surfaces.
 
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