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CTRI Number  CTRI/2026/01/100966 [Registered on: 13/01/2026] Trial Registered Prospectively
Last Modified On: 13/01/2026
Post Graduate Thesis  Yes 
Type of Trial  Interventional 
Type of Study   Dentistry 
Study Design  Randomized, Parallel Group, Active Controlled Trial 
Public Title of Study   Long implants with sinus lift versus short implants: which is better for missing upper back teeth? 
Scientific Title of Study   Comparative evaluation of implant stability, clinical and CBCT outcomes of long implants with indirect sinus lift versus short implants in maxillary posterior edentulous patients – a randomized clinical 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 Janhavi Kulkarni  
Designation  Post graduate student 
Affiliation  SMBT Dental College and Hospital 
Address  G-02 Department of Periodontology, SMBT Dental College and Hospital

Ahmadnagar
MAHARASHTRA
422608
India 
Phone  9405271999  
Fax    
Email  janhaviajitkulkarni@gmail.com  
 
Details of Contact Person
Scientific Query  
Name  Dr Purushottam Rakhewar 
Designation  Head of Department and PG Guide 
Affiliation  SMBT Dental College and Hospital 
Address  G-02 Department of Periodontology, SMBT Dental College and Hospital

Ahmadnagar
MAHARASHTRA
422608
India 
Phone  9370017343  
Fax    
Email  drpsrakhewar@gmail.com  
 
Details of Contact Person
Public Query  
Name  Dr Janhavi Kulkarni  
Designation  Post graduate student 
Affiliation  SMBT Dental College and Hospital 
Address  G-02 Department of Periodontology, SMBT Dental College and Hospital

Ahmadnagar
MAHARASHTRA
422608
India 
Phone  9405271999  
Fax    
Email  janhaviajitkulkarni@gmail.com  
 
Source of Monetary or Material Support  
SMBT Dental College and Hospital, Sangamner, Ahmednagar, Maharashtra, India, 422608 
 
Primary Sponsor  
Name  Indian Society of Periodontology 
Address  ISP, #721, Phase 3B-1, Mohali, India - 160059 
Type of Sponsor  Other [National Professional Organization] 
 
Details of Secondary Sponsor  
Name  Address 
Dr Janhavi Kulkarni  G-02, Department of Periodontology, SMBT Dental College and Hospital, Ghulewadi, Sangamner, Ahmednagar, Maharashtra, India, 422608 
 
Countries of Recruitment     India  
Sites of Study  
No of Sites = 1  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Janhavi Kulkarni  SMBT Dental College and Hospital  G-02 Department of Periodontology, SMBT Dental College and Hospital
Ahmadnagar
MAHARASHTRA 		 9405271999

janhaviajitkulkarni@gmail.com 
 
Details of Ethics Committee  
No of Ethics Committees= 1  
Name of Committee  Approval Status 
Committee on Ethics, SMBT Dental College, Sangamner  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Not Applicable 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: K084||Partial loss of teeth,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Indirect sinus lift with long implants  Following the administration of local anaesthesia, a horizontal crestal incision will be made, and mucoperiosteal flaps will be elevated. To carry out indirect sinus lift using osteotomes, pilot drill will be used to prepare the implant site to a distance approximately 2 mm below the sinus floor. The osteotomy site will be expanded with sequential drilling. After reaching the sinus floor, with light tapping osteotome will be pushed to create a greenstick fracture on the compact bone of the sinus floor. Subsequently, larger diameter osteotomes will be used at same length until desired implant size is achieved. A suitable size implant body will be placed with the help of a ratchet. The implant body will be covered by cover screw. The mucoperiosteal flaps will be repositioned and stabilized using non-absorbable black silk surgical sutures. Interrupted suture will be placed. The implant stability, clinical and CBCT changes and the resultant outcome after placement of long implants with indirect sinus lift at stage 1 surgery, stage 2 surgery, during loading and 1 year follow up and at baseline and 1 year follow up radiographically will be assessed. 
Intervention  Short implants   Following the administration of local anaesthesia, a horizontal crestal incision will be made, and mucoperiosteal flaps will be elevated. Sequential osteotomy will be done and suitable size short implant body will be placed with the help of a ratchet. The implant body will be covered by cover screw. The mucoperiosteal flaps will be repositioned and stabilized using non-absorbable black silk surgical sutures. Interrupted suture will be placed. The implant stability, clinical and CBCT changes and the resultant outcome after placement of short implants at stage 1 surgery, stage 2 surgery, during loading and 1 year follow up and at baseline and 1 year follow up radiographically will be assessed. 
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  60.00 Year(s)
Gender  Both 
Details  Partially edentulous posterior maxilla,
Residual bone height of 5-7 mm with ridge width more than 6 mm,
Patients requiring indirect sinus lift,
Patients willing for surgery 
 
ExclusionCriteria 
Details  General contraindications to implant surgery
o Local and systemic conditions affecting bone
o Poor oral hygiene and motivation
o Presence of local anatomical limitations
o Untreated periodontitis or acute/purulent infection in the area intended for
implant placement
o Unable to commit to 1-year follow-up
o Treated or under treatment with intravenous amino-bisphosphonates
o Lacking antagonistic occlusal surfaces for the study implants at implant loading 
 
Method of Generating Random Sequence   Computer generated randomization 
Method of Concealment   Other 
Blinding/Masking   Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Successful osseointegration
Stable, functional and long term replacement of missing tooth 		 Baseline
At stage 2 surgery
During loading
1 year  
 
Secondary Outcome  
Outcome  TimePoints 
NIL  NIL 
 
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 4 
Date of First Enrollment (India)   02/02/2026 
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="1"
Months="0"
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 - YES
  1. What data in particular will be shared?
    Response - Individual participant data that underlie the results reported in this article, after de-identification (text, tables, figures, and appendices).

  2. What additional supporting information will be shared?
    Response -  Study Protocol
    Response -  Statistical Analysis Plan
    Response - Informed Consent Form
    Response - Clinical Study Report

  3. Who will be able to view these files?
    Response - Researchers whose proposed use of the data has been approved by an independent review committee identified for this purpose.

  4. For what types of analyses will this data be available?
    Response - Any purpose.

  5. By what mechanism will data be made available?
    Response - Proposals should be directed to [janhaviajitkulkarni@gmail.com].

  6. For how long will this data be available start date provided 15-05-2026 and end date provided 15-11-2027?
    Response - Immediately following publication. No end date.

  7. Any URL or additional information regarding plan/policy for sharing IPD? 
    Additional Information - NIL
Brief Summary   The study aims to evaluate and compare implant stability, clinical and CBCT outcomes of long implants with indirect sinus lift and short implant placement in maxillary posterior edentulous arches. The expected outcomes include evaluating implant stability, implant survival rates, and clinical effectiveness over a 1-year follow-up period. This information will help determine the relative success rates in rehabilitating posterior maxillary edentulous areas thus offering evidence based guidance in clinical decision-making. The clinical parameters will be assessed at baseline, stage 1 surgery, stage 2 surgery and 1 year follow up whereas CBCT parameters will be assessed at baseline and 1 year follow up. 
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