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CTRI Number  CTRI/2025/09/095195 [Registered on: 22/09/2025] Trial Registered Prospectively
Last Modified On: 20/09/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Healing assessment for tooth lengthening procedure to place artificial teeth using two different methods(Rotary burs and piezo surgery) 
Scientific Title of Study   Assessment of early wound healing following crown lengthening by flap with ostectomy technique using piezo surgery and rotary instruments - A double blinded randomized control trial 
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 Nagalakshmi Gandhi 
Designation  III year Post Graduate student 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Room No.5, Department of Periodontics, Sri Ramachandra Dental College and hospital, 1, Ramachandra Nagar, Porur

Chennai
TAMIL NADU
600116
India 
Phone  9445842438  
Fax    
Email  nagalakshmidayaa@gmail.com  
 
Details of Contact Person
Scientific Query
 
Name  Dr Ram Sabarish 
Designation  Associate Professor 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Room No. 5, Department of Periodontics, Sri Ramachandra Dental College and hospital, 1, Ramachandra Nagar, Porur

Chennai
TAMIL NADU
600116
India 
Phone  9840549927  
Fax    
Email  ramsabarish@sriramachandra.edu.in  
 
Details of Contact Person
Public Query
 
Name  Dr Ram Sabarish 
Designation  Associate Professor 
Affiliation  Sri Ramachandra Institute Of Higher Education And Research 
Address  Room No. 5, Department of Periodontics, Sri Ramachandra Dental College and hospital, 1, Ramachandra Nagar, Porur

Chennai
TAMIL NADU
600116
India 
Phone  9840549927  
Fax    
Email  ramsabarish@sriramachandra.edu.in  
 
Source of Monetary or Material Support  
Room No. 5, Department of Periodontics, Sri Ramachandra Dental College and hospital, 1, Ramachandra Nagar, Porur, Chennai-600116, India 
 
Primary Sponsor  
Name  Dr Nagalakshmi G 
Address  Room no.5 Department of periodontics Sri Ramachandra Dental College And Hospital 1 Ramachandra Nagar Porur chennai 
Type of Sponsor  Research institution and hospital 
 
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 Nagalakshmi Gandhi  Room No. 5, Department of Periodontology  Sri Ramachandra Dental College and hospital 1 Ramachandra Nagar Porur
Chennai
TAMIL NADU 
09445842438

nagalakshmidayaa@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Institutional Ethics Committee Sri Ramachandra Institute of Higher Education and Research  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Healthy Human Volunteers  Systemically healthy volunteers with dental caries and inadequate teeth height for artificial crown 
 
Intervention / Comparator Agent  
Type  Name  Details 
Intervention  Crown lengthening using piezo surgery  crown lengthening procedure with osseous reduction will be done using piezosurgery unit using bur BS4 for the buccal and lingual region and SL2 for the interproximal site with a setting of D2 and 70 ml/min for irrigation for the intervention group.  
Comparator Agent  Crown lengthening using Rotary burs   crown lengthening procedure with osseous reduction will be done using micromotor with the rotary bur (HP-8) for the comparator group.  
 
Inclusion Criteria  
Age From  25.00 Year(s)
Age To  40.00 Year(s)
Gender  Both 
Details  Systemically healthy volunteers with inadequate clinical crown height for retention of restoration  
 
ExclusionCriteria 
Details  Patients with any systemic disease and deep sub-gingivally located carious lesions, crown and root fractures, and pre-existing deep preparation margins and with poor oral hygiene, smoking habit, and pregnant women. 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Sequentially numbered, sealed, opaque envelopes 
Blinding/Masking   Outcome Assessor Blinded 
Primary Outcome  
Outcome  TimePoints 
Early wound healing  Third and seventh day post surgery 
 
Secondary Outcome  
Outcome  TimePoints 
Quantification of Wound fluid using periotron 8000
overall patient satisfaction using the visual analog scale  
Third and seventh day post surgery 
 
Target Sample Size   Total Sample Size="20"
Sample Size from India="20" 
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)   08/10/2025 
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="0"
Months="6"
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   Maintaining healthy gums is essential for successful dental work. Issues such as deep cavities or fractured crowns can compromise gum health by disrupting the attachment between gums and bone, potentially leading to gum swelling, tissue loss, and bone damage. Therefore, understanding the interplay between dental work and gum health is crucial for effective treatment planning and achieving favorable outcomes. Crown lengthening is a technique used to address these problems by providing adequate space for a secure attachment between the bone and the crown. This procedure can be performed using various methods, including gum tissue removal or bone reshaping. While bone reshaping can be accomplished with specialized instruments, these may generate heat, which can impede healing. Piezosurgery offers an alternative approach that utilizes sound waves to precisely cut bone without causing thermal damage, potentially reducing post-operative complications. The healing process following bone reshaping has been evaluated, considering factors like crown height and gum contour. However, there is limited research on the efficacy of piezosurgery in crown lengthening. This study aims to compare the healing outcomes of crown lengthening performed with conventional instruments versus piezosurgery. 
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