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CTRI Number  CTRI/2018/04/013111 [Registered on: 09/04/2018] Trial Registered Retrospectively
Last Modified On: 29/03/2018
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Non-randomized, Active Controlled Trial 
Public Title of Study   A comparison of chewing efficiency and teeth contacts before and after treatment in patients with posteriorly positioned lower jaw in patients with extraction treatment plan and non extraction treatment plan. 
Scientific Title of Study   A COMPARATIVE EVALUATION OF MASTICATORY EFFICIENCY AND OCCLUSAL CONTACTS IN CLASS II PATIENTS TREATED WITH UPPER PREMOLAR EXTRACTIONS AND FIXED FUNCTIONAL APPLIANCES.”  
Trial Acronym   
Secondary IDs if Any  
Secondary ID  Identifier 
NIL  NIL 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name  Kriti Sharma Rai 
Designation  Senior Lecturer 
Affiliation  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204 
Address  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh,India.

Meerut
UTTAR PRADESH
201204
India 
Phone  9627615848  
Fax    
Email  dr.kriti86in@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Puneet Batra 
Designation  Vice Principal, Professor and Head , Department of Orthodontics 
Affiliation  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204 
Address  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh,India.

Meerut
UTTAR PRADESH
201204
India 
Phone  9810335961  
Fax    
Email  drpuneetbatra@gmail.com  
 
Details of Contact Person
Public Query
 
Name  Kriti Sharma Rai 
Designation  Senior Lecturer 
Affiliation  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204 
Address  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh,India.

Meerut
UTTAR PRADESH
201204
India 
Phone  9627615848  
Fax    
Email  dr.kriti86in@gmail.com  
 
Source of Monetary or Material Support  
Dr. Kriti Sharma Rai Department of Orthodontics IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204 
 
Primary Sponsor  
Name  Dr Kriti Sharma Rai 
Address  Department of Orthodontics and Dentofacial Orthopedics. Institute of Dental Studies and Technologies Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204 
Type of Sponsor  Private hospital/clinic 
 
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 Kriti Sharma Rai  /Institute of Dental Studies and Technologies  IDST Dental College, Kadrabad, Modinagar, Uttar Pardesh, Ghaziabad, Uttar Pradesh 201204
Ghaziabad
UTTAR PRADESH 
9627615848

dr.kriti86in@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
IDSTEC  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  Skeletal Class II malocclusion with ANB more than 5° with convex profile.,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Mandibular Protraction Fixed Functional Appliance  Correction of Class II Div I malocclusion. 
Comparator Agent  Upper first Premolar Extraction.  For correction of Class II Div I malocclusion. 
 
Inclusion Criteria  
Age From  14.00 Year(s)
Age To  17.00 Year(s)
Gender  Both 
Details  •All patients having Skeletal Class II malocclusion with ANB more than 5° with convex profile.
•Increased Overjet.
•Normal or marginally low angle cases i.e. SN-GoGn ≤ 32°.
•No history of previous orthodontic treatment.
•Class II patients that need to be treated either by camouflage i.e uniarch extraction or fixed functional appliance.
•No history of any systemic illness.
•Pre- treatment dentition with at least half the cusp width of Class II molar relation.
 
 
ExclusionCriteria 
Details  •Cases requiring all 4 first premolar extractions.
•Patients having any apparent clinical muscular problem/dysostosis.
•Patients having tempomandibular joint dysfunction.
•Patient having Mandibular Incisor plane angle ≥100°.
•Patient having severely attrited dentition/fractured/mobile teeth / Amelogenesis imperfecta/ erosion/bruxism.
•Patient having skeletal facial asymmetry and requiring definite surgical treatment.
 
 
Method of Generating Random Sequence   Other 
Method of Concealment   Case Record Numbers 
Blinding/Masking   Not Applicable 
Primary Outcome  
Outcome  TimePoints 
Masticatory Efficiency and
Occlusal Contacts in upper first premolar extraction and fixed functional appliance cases. 
6 months 
 
Secondary Outcome  
Outcome  TimePoints 
Occlusal Contacts in upper first premolar extraction and fixed functional appliance cases.  6 months 
 
Target Sample Size   Total Sample Size="20"
Sample Size from India="20" 
Final Enrollment numbers achieved (Total)= "20"
Final Enrollment numbers achieved (India)="20" 
Phase of Trial   Phase 3/ Phase 4 
Date of First Enrollment (India)   22/11/2012 
Date of Study Completion (India) 14/05/2014 
Date of First Enrollment (Global)  Date Missing 
Date of Study Completion (Global) Date Missing 
Estimated Duration of Trial   Years="1"
Months="6"
Days="11" 
Recruitment Status of Trial (Global)   Not Applicable 
Recruitment Status of Trial (India)  Completed 
Publication Details   None yet. 
Individual Participant Data (IPD) Sharing Statement

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

Brief Summary  

Aim: The aim of this study was to evaluate and compare changes in masticatory efficiency and the functional occlusal contact relationship in patients treated with upper first premolar extraction cases and case with Fixed Functional Appliances (non-extraction cases). Materials and Methods: Two groups with ten patients each were selected. Group I was treated with upper first premolar extraction while Group II cases were treated with Fixed Functional Appliance (MPA IV). Masticatory efficiency was checked using spectrophotometry while occlusal contacts were checked using Tek Scan. Records were taken at T1: After completion of levelling and alignment and T2:- After space closure in upper first premolar extraction cases and after 6 months of Fixed functional appliance placement. Results: There was a significant difference during inter group comparison however during intra group comparison no statistically significant difference was found for masticatory efficiency. When compared between the two groups, there was reduced occlusal contact in Group I and increased duration for performing different movements. Conclusions: Skeletal Class II patients when treated with Fixed Functional appliance (non-extraction), there was an increase in masticatory efficiency, as they are corrected to Class I malocclusion. When compared between the two groups, there were reduced occlusal contact in Group I and reduced duration for performing different movements.

Key words: Masticatory efficiency, occlusal contacts, Fixed Functional appliance 
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