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CTRI Number  CTRI/2024/05/067656 [Registered on: 20/05/2024] Trial Registered Prospectively
Last Modified On: 12/03/2026
Post Graduate Thesis  Yes 
Type of Trial  Observational 
Type of Study   Cross Sectional Study 
Study Design  Other 
Public Title of Study   Is oral health important or not : A study among prosthodontic patients  
Scientific Title of Study   Quantifying health utilities of adult prosthodontic patients using the time trade-off method: A cross-sectional 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 Bidisha Sarmah 
Designation  Post-graduate Students  
Affiliation  Manipal Academy of Higher Education  
Address  Room no. 8, Dept of Public health dentistry, Manipal
Manipal College of Dental Sciences, Manipal
Udupi
KARNATAKA
576104
India 
Phone  09634618113  
Fax    
Email  bidisha1sarmah@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Shashidhar Acharya  
Designation  Professor 
Affiliation  Manipal Academy of Higher Education  
Address  Room no. 8, Dept of Public health dentistry, Manipal
Manipal College of Dental Sciences, Manipal
Udupi
KARNATAKA
576104
India 
Phone  9448127031  
Fax    
Email  sh.acharya@manipal.edu  
 
Details of Contact Person
Public Query
 
Name  Dr Shashidhar Acharya  
Designation  Professor 
Affiliation  Manipal Academy of Higher Education  
Address  Room no. 8, Dept of Public health dentistry, Manipal
Manipal College of Dental Sciences, Manipal

KARNATAKA
576104
India 
Phone  9448127031  
Fax    
Email  sh.acharya@manipal.edu  
 
Source of Monetary or Material Support  
Manipal College of Dental Sciences. Room no. 8, Department of Public Health Dentistry, MCODS, Manipal, Karnataka, India-576104 
 
Primary Sponsor  
Name  Bidisha  
Address  Room no 8, Department of Public Health Dentistry, Manipal College of Dental Sciences, Manipal - 576104 
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 Bidisha   T M A Pai Hospital   Dept of Public health dentistry Manipal College of Dental Sciences Manipal
Udupi
KARNATAKA 
09634618113

bidisha1sarmah@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Kasturba Medical College and Kasturba Hospital IEC-2   Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Subjects who have missing teeth and want to get it replaced  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  NIL  NIL 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  99.00 Year(s)
Gender  Both 
Details  Male and female participants above 18 years of age.
Participants who can read, write, and understand Kannada or English.
Participants who are either having one or more missing teeth or are already prosthesis wearers are included 
 
ExclusionCriteria 
Details  Participants who do not have the knowledge of English or Kannada.
Participants who are not willing to participate in the study.
Participants who are suffering from any psychological illness which prevents them from participating in the study.
 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Not Applicable 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Time-Trade-off in years   at baseline  
 
Secondary Outcome  
Outcome  TimePoints 
oral health-related quality of life (OHRQoL)
scores. 
at baseline  
 
Target Sample Size   Total Sample Size="60"
Sample Size from India="60" 
Final Enrollment numbers achieved (Total)= "60"
Final Enrollment numbers achieved (India)="60" 
Phase of Trial   N/A 
Date of First Enrollment (India)   03/06/2024 
Date of Study Completion (India) 21/05/2024 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) 21/10/2024 
Estimated Duration of Trial   Years="0"
Months="6"
Days="0" 
Recruitment Status of Trial (Global)
Modification(s)  
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
Modification(s)  
Time-Trade-Off is a method used to elicit individuals’ preferences for different health states. Items widely used in health economics and outcomes research to measure the quality of life associated with various health conditions. We can conclude and render better treatment options by analyzing the data and considering the patient’s psyche. A patient in the Dental OPD complaining of missing teeth is mainly concerned with three problems- aesthetics, phonetics, and functional capability. Understanding the effects of treatment to replace teeth on oral health-related quality of life (OHRQoL) is an important aspect of clinicians. No studies have been conducted that imply studying the feasibility of the time trade-off method in prosthodontic patients and their preferences and choices. This study investigates the various factors that determine a patient’s choice of treatment in the department, mainly focusing on Time-Trade-Off principles. Participant Information Sheets and Informed Consent Forms for clinical examination will be given to the participants willing to participate in the study. Only the participants who are either coming for the first time to get a prosthesis or are already prosthesis wearers will be selected. A standard questionnaire is distributed; each participant is expected to answer within 15 minutes. The participants are asked to choose between two alternatives: A. Living for a specified amount of time in a less desirable health state. B. Living for a shorter amount of time in full health. The point at which a participant is indifferent between the two options provides a measure of their value on their current health state compared to full health. This will allow us to understand the effects of treatment on oral health-related quality of life (OHRQoL) 
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