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CTRI Number  CTRI/2025/07/090362 [Registered on: 07/07/2025] Trial Registered Prospectively
Last Modified On: 15/03/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Preventive
Dentistry 
Study Design  Other 
Public Title of Study   Alteration in salivary microbial count with oral health education in Autistic children 
Scientific Title of Study   Effect of Oral Health Education on Salivary Microorganisms in Children with Autism Spectrum Disorder 
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 N J Remya 
Designation  Post Graduate Resident 
Affiliation  Amrita School of Dentistry 
Address  Department of Pediatric and Preventive Dentistry, Amrita School of Dentistry, Kochi

Ernakulam
KERALA
682041
India 
Phone  9656581694  
Fax    
Email  drnjremya@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Balagopal Varma R 
Designation  Principal, HOD 
Affiliation  Amrita School of Dentistry 
Address  Department of Pediatric and Preventive Dentistry, Amrita School of Dentistry, Kochi

Ernakulam
KERALA
682041
India 
Phone  9447032358  
Fax    
Email  balagopalvarma@aims.amrita.edu  
 
Details of Contact Person
Public Query
 
Name  Dr Balagopal Varma R 
Designation  Principal, HOD 
Affiliation  Amrita School of Dentistry 
Address  Department of Pediatric and Preventive Dentistry, Amrita School of Dentistry, Kochi


KERALA
682041
India 
Phone  9447032358  
Fax    
Email  balagopalvarma@aims.amrita.edu  
 
Source of Monetary or Material Support  
Nirmala Training Centre for Exceptional Children, Kusumagiri P O, Kakkanad, Kerala, India Ernakulam KERALA  
 
Primary Sponsor  
Name  Dr N J Remya 
Address  Post Graduate Resident, Department of Pediatric and Preventive Dentistry, Kochi - 682041, Kerala, India 
Type of Sponsor  Other [Principal Investigator] 
 
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 N J Remya  Amrita School of Dentistry  Department of Pediatric and Preventive Dentistry, Room No 05, First Floor, Amrita School of Dentistry
Ernakulam
KERALA 
9656581694

drnjremya@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Ethics Committee of Amrita School of Medicine  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: F840||Autistic disorder,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  NIL  NIL 
Intervention  Oral Health Education  Include use of using dental models, picture cards, videos, etc. At baseline, 3 months, 6 months. 
 
Inclusion Criteria  
Age From  6.00 Year(s)
Age To  13.00 Year(s)
Gender  Both 
Details  Children with Autism Spectrum Disorder - Mild to moderate.
Children in primary and mixed dentition period 
 
ExclusionCriteria 
Details  Autistic children presenting aggressive behaviour.
Children with serious systemic conditions.
Children with any comorbidities that restrict their participation in the study. 
 
Method of Generating Random Sequence   Not Applicable 
Method of Concealment   Pre-numbered or coded identical Containers 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Total plate count  baseline
12 months 
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
Target Sample Size   Total Sample Size="10"
Sample Size from India="10" 
Final Enrollment numbers achieved (Total)= "12"
Final Enrollment numbers achieved (India)="12" 
Phase of Trial   N/A 
Date of First Enrollment (India)   17/07/2025 
Date of Study Completion (India) 17/07/2026 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="1"
Months="0"
Days="0" 
Recruitment Status of Trial (Global)   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)  
Children were asked to wash mouth and avoid eating or drinking for 1 hour, following which, approximately 1 ml of non-stimulated, naturally outflowed saliva sample was collected from the children using the saliva collection kit. The sample collected was stored in containers along with ice pack to maintain the cold temperature. Oral health education was done using dental models, picture cards, videos, etc. The collected sample were transported to the lab, the same day and each sample was evaluated for total microbial count, using the microbial method called total plate count.
Oral health education was given again at 3 months and 6 months and Post intervention saliva samples are to be  collected and evaluated at 12 months.
 
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