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CTRI Number  CTRI/2021/08/035936 [Registered on: 25/08/2021] Trial Registered Prospectively
Last Modified On: 08/06/2021
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Preventive
Dentistry 
Study Design  Randomized, Parallel Group, Multiple Arm Trial 
Public Title of Study   Caries-preventive effectiveness of adding an antibacterial agent to fluoride varnish among 4-6-year-old children 
Scientific Title of Study   Effectiveness of adding an antibacterial agent (Povidone iodine or Chlorhexidine) to fluoride varnish on caries prevention among 4–6-year-old school children – A randomized controlled trial 
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Arpit Gupta 
Designation  Assistant Professor 
Affiliation  Postgraduate Institute of Medical Education and Research 
Address  Oral Health Sciences Centre PGIMER SECTOR 12

Chandigarh
CHANDIGARH
160012
India 
Phone  8826674284  
Fax    
Email  arpitg.in@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Arpit Gupta 
Designation  Assistant Professor 
Affiliation  Postgraduate Institute of Medical Education and Research 
Address  Oral Health Sciences Centre PGIMER SECTOR 12

Chandigarh
CHANDIGARH
160012
India 
Phone  8826674284  
Fax    
Email  arpitg.in@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Arpit Gupta 
Designation  Assistant Professor 
Affiliation  Postgraduate Institute of Medical Education and Research 
Address  Oral Health Sciences Centre PGIMER SECTOR 12

Chandigarh
CHANDIGARH
160012
India 
Phone  8826674284  
Fax    
Email  arpitg.in@gmail.com  
 
Source of Monetary or Material Support  
Department of Health Research (DHR), New Delhi 
 
Primary Sponsor  
Name  Department of Health Research MoHFW GoI 
Address  Red Cross Road New Delhi-110001 
Type of Sponsor  Government funding agency 
 
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 
Arpit Gupta  Postgraduate Institute of Medical Education and Research  Oral Health Sciences Centre Unit of Public Health Dentistry Sector 12
Chandigarh
CHANDIGARH 
8826674284

arpitg.in@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee, PGIMER, Chandigarh  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  All 4–6-year-old Government school children without no history of allergy to fluoride varnish, chlorhexidine and povidone iodine, or no debilitating illness/disease/ongoing orthodontic treatment 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  1% Chlorhexidine and 5% sodium fluoride varnish application   Two-step application procedure Child will be comfortably seated on the portable dental chair in upright position. Plaque will be removed from the surfaces of the teeth by wiping with cotton gauze. In the first step, 0.25 mL of the allocated formulation will be dispensed in the dispensing wells. The teeth will be dried using cotton gauze and isolated. The formulation will be applied and allowed to dry up while maintaining complete isolation using suction tips. In the second step, 0.25 mL of 5% NaF varnish will be dispensed in the dispensing wells and will be applied on all the teeth using an applicator tip by using paint on technique. Adequate isolation will be ensured by the use of suction tips throughout the application procedure. After varnish application, the patient will be made to sit with the mouth open for 4 minutes with adequate suction. Thereafter, children will be advised not to rinse or drink anything for half an hour. Parents will be informed to give liquid and semisolid food items on the day of varnish application and avoid tooth brushing at the night. 
Intervention  10% povidone iodine solution followed by 5% sodium fluoride varnish application   Two-step application procedure Child will be comfortably seated on the portable dental chair in upright position. Plaque will be removed from the surfaces of the teeth by wiping with cotton gauze. In the first step, 0.25 mL of the allocated formulation will be dispensed in the dispensing wells. The teeth will be dried using cotton gauze and isolated. The formulation will be applied and allowed to dry up while maintaining complete isolation using suction tips. In the second step, 0.25 mL of 5% NaF varnish will be dispensed in the dispensing wells and will be applied on all the teeth using an applicator tip by using paint on technique. Adequate isolation will be ensured by the use of suction tips throughout the application procedure. After varnish application, the patient will be made to sit with the mouth open for 4 minutes with adequate suction. Thereafter, children will be advised not to rinse or drink anything for half an hour. Parents will be informed to give liquid and semisolid food items on the day of varnish application and avoid tooth brushing at the night. 
Comparator Agent  Placebo solution followed by 5% sodium fluoride application   Two-step application procedure Child will be comfortably seated on the portable dental chair in upright position. Plaque will be removed from the surfaces of the teeth by wiping with cotton gauze. In the first step, 0.25 mL of the allocated formulation will be dispensed in the dispensing wells. The teeth will be dried using cotton gauze and isolated. The formulation will be applied and allowed to dry up while maintaining complete isolation using suction tips. In the second step, 0.25 mL of 5% NaF varnish will be dispensed in the dispensing wells and will be applied on all the teeth using an applicator tip by using paint on technique. Adequate isolation will be ensured by the use of suction tips throughout the application procedure. After varnish application, the patient will be made to sit with the mouth open for 4 minutes with adequate suction. Thereafter, children will be advised not to rinse or drink anything for half an hour. Parents will be informed to give liquid and semisolid food items on the day of varnish application and avoid tooth brushing at the night. 
 
Inclusion Criteria  
Age From  4.00 Year(s)
Age To  6.00 Year(s)
Gender  Both 
Details  • Children aged 4-6 years of age in government schools of Chandigarh UT
• Children whose parent/guardian gives informed consent
 
 
ExclusionCriteria 
Details  • History of allergy to fluoride varnish, chlorhexidine and povidone iodine
• Children with debilitating illness/disease
• Children with ongoing orthodontic treatment

 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Participant, Investigator, Outcome Assessor and Date-entry Operator Blinded 
Primary Outcome  
Outcome  TimePoints 
Caries increment  Baseline, 3 months, 6 months, 1 year and 2 years 
 
Secondary Outcome  
Outcome  TimePoints 
oral microflora including Mutans streptococci and other salivary parameters   Baseline, 1 year and 2 years. 
Tooth remineralization and gingival bleeding scores   Baseline, 3 months, 6 months, 1 year and 2 years 
Nutritional status  Baseline, 3 months, 6 months, 1 year and 2 years 
 
Target Sample Size   Total Sample Size="660"
Sample Size from India="660" 
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 3 
Date of First Enrollment (India)   01/09/2021 
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="3"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details    
Individual Participant Data (IPD) Sharing Statement

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

Response - NO
Brief Summary  

Background: Dental caries is a major public health problem worldwide and there exists a relationship with nutritional status, overall growth and development of the child. Recent advancements in preventive dentistry advocate use of an antibacterial agent with topical fluoride to prevent caries incidence effectively. Novelty: Paucity of good quality randomized trials evaluating the added benefit of chlorhexidine or povidone iodine over topical fluoride use alone limits our ability to frame effective caries preventive guidelines for children. The results of this randomized trial will thus help us formulate an effective caries preventive regimen for children. Objectives: To assess and compare the caries preventive effectiveness of antibacterial agent (povidone iodine or chlorhexidine) plus fluoride varnish over fluoride varnish alone among 4–6-year-old children. To correlate the tooth morbidity and nutritional status of the children. Methods: Children will be randomly allocated to one of the three groups (Group 1: 1% chlorhexidine solution followed by 5% fluoride varnish, Group 2: 10% povidone iodine solution followed by 5% fluoride varnish, Group 3: placebo solution followed by 5% fluoride varnish). The three formulations (10% povidone iodine, 1% chlorhexidine and placebo) will be masked indigenously to ensure triple blinding. ICDAS II scores, DIAGNOdent/QLF scores, gingival bleeding index, BMI, and oral microflora including Mutans streptococci will be evaluated at baseline and at follow-ups up to 2 years. Appropriate descriptive and inferential statistics will be applied. Statistical significance is set at p<0.05. Expected outcome: This trial will help evaluate whether semi-annual application of antibacterial agent (povidone iodine or chlorhexidine) along with fluoride varnish is more effective in preventing caries than fluoride varnish application alone among 4–6-year-old children. Caries preventive potential will be assessed through change in dental caries increment and oral microflora in saliva over a two year follow up period. Correlating the BMI and dental caries incidence in children could be useful to determine the effect of tooth morbidity on overall growth of the children and indicate the need for intersectoral coordination for health promotion.


 
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