- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05957705
Maxillary Sinus Augmentation With Xenogeneic Bone Graft Associated or Not With Fibrin Rich in Platelets and Leukocytes Produced by Horizontal Centrifugation: A Randomized Clinical Trial.
July 15, 2023 updated by: Michel Reis Messora, University of Sao Paulo
Maxillary Sinus Augmentation With Xenogeneic Bone Graft Associated or Not With Fibrin Rich in Platelets and Leukocytes Produced by Horizontal Centrifugation for Early Implant Placement: a Randomized Controlled Split-mouth Clinical Trial.
The objective of study is to evaluate the influence of the use of Platelet Rich Fibrin (PRF) from the patient's produced by a new horizontal centrifugation protocol associated with particulate xenogenous bone graft in the rehabilitation of atrophic maxillary sinus for early osseointegrated implants plancement.
In a split-mouth model, twelve patients in need of rehabilitation with at least two bilateral implants in the regions of atrophic maxillary sinus will simultaneously undergo bone reconstruction using deproteinized particulate xenogenous bone (Bio-Oss Small®; Geistlich AG, Wolhusen , Switzerland).
Randomly, one of the surgical sites of each patient will be reconstructed using the associated technique of solid PRF + Liquid PRF with the xenogen material, where at the end of the grafting procedure, both sites will be protected by a collagen membrane (Bio-Gide® Compressed; Geistlich AG, Wolhusen, Switzerland) positioned over the surgical access of the maxillary sinus.
During the research, cone-beam computed tomography scans will be performed preoperatively, immediately after surgical procedure, 3 months after maxillary sinus reconstruction, after immediate implants placement and 12 months after functional load of the implants for comparative volume measurement of tissue gain and the maintenance of the grafted tissue.
During the implant surgery, bilateral biopsies will be collected after 4 months of the regenerative surgical procedure during the early dental implants surgery by virtually guided surgery.
The stability of the implants will be measured by means of resonance frequency analysis (ISQ) after the immediate postoperative period and 6 postoperative months as the clinical success rates of the implants after 12 months with functional load.
The tissue samples will be used for histological, histomorphometric, immunohistochemistry and microtomographic analysis.
All data obtained will be statistically analyzed.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
13
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
-
-
São Paulo
-
Ribeirão Preto, São Paulo, Brazil, 14040-904
- School of Dentistry of Ribeirão Preto - USP
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- need of at least one dental implant in atrophic maxillary sinus region;
- insufficient amount of vertical bone remnant for the dental implants surgery (maximum of 4mm);
- sufficient horizontal bone thickness for dental implants rehabilitation;
- present edentulism in the area to be treated for at least 6 months;
- similar pattern of pneumatization of the maxillary sinuses.
Exclusion Criteria:
- any contraindication for the installation of dental implants;
- need of horizontal bone augmentation;
- pacientes with inflammatory or autoimmune disease in the oral cavity;
- use of immunosuppressants, corticosteroids or bisphosphonates for medical needs;
- pacientes with history of malignancy in the last 5 years;
- smoking patients or patients reporting excessive alcohol consumption;
- decompensated systemic condition, uncontrolled periodontal disease, insulin-dependent diabetic patients, patients with blood-related diseases and patients who need oral rehabilitation in the lower arch;
- It is also noteworthy that patients with a history of reconstructive bone therapies in the maxillary sinus region or with a history of oroantral communication will be excluded from this research.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Bilateral Sinus Augmentation
Split-mouth bilateral sinus augmentation of xenogeneic bone graft associated or not with platelet-rich fibrin produced by horizontal centrifugation.
|
The patients will be submitted to bilateral sinus augmentation using two different techniques to provide enough bone tissue for dental implants placement.
Other Names:
|
Active Comparator: Early dental implant placement by Guided Surgery
|
After 4 months of sinus augmentation, patients will be prepared to receive dental implants for oral rehabilitation.
Performed by guided surgery the implants will be placed at the best location for the rehabilitation and at the place were the sinus lighting were performed.
Other Names:
|
Active Comparator: Dental implants reopening surgery for implant load
|
After 4 months of sinus augmentation, patients will be prepared to receive dental implants for oral rehabilitation.
Performed by guided surgery the implants will be placed at the best location for the rehabilitation and at the place were the sinus lighting were performed.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Micro-CT and Histometric analyses
Time Frame: 4 Months
|
After the period of 4 months from sinus reconstructions, during the dental implant placement by guided surgery, bone samples will be collected at the same location of the implants preparation.
The collected bone tissue will be prepared and submitted to Micro-CT and histometric analyses.
|
4 Months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dental Implants ISQ measurement
Time Frame: 6 months
|
ISQ will be measured at the moment of implant placement and after 6 months.
|
6 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Study Chair: Dr. Michel R Messora, Phd, Universidade de São Paulo - FORP-USP
- Principal Investigator: Gabriel GD Reis, Phd Student, Universidade de São Paulo - FOR-USP
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
March 17, 2021
Primary Completion (Actual)
April 30, 2023
Study Completion (Actual)
July 15, 2023
Study Registration Dates
First Submitted
July 15, 2023
First Submitted That Met QC Criteria
July 15, 2023
First Posted (Estimated)
July 24, 2023
Study Record Updates
Last Update Posted (Estimated)
July 24, 2023
Last Update Submitted That Met QC Criteria
July 15, 2023
Last Verified
July 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 29428820.3.0000.5419
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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