- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05411510
Evaluation of Bone Height Gain Following Trans-crestal Sinus Floor Elevation
Evaluation of Bone Height Gain Following Trans-crestal Sinus Floor Elevation Using the Densifying Bur in Comparison to The Conventional Osteotome In Patients With Atrophic Posterior Maxillae: A Randomized Controlled Clinical Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Among the techniques used to overcome low vertical bone height in the maxilla is maxillary sinus floor augmentation. It can be performed either through a lateral window, or via a crestal access. Many long term studies and systematic reviews have showed that osteotome mediated sinus floor elevation (OSFE) technique is a highly predictable method for rehabilitation of patients with atrophied posterior maxilla with survival rates ranging from 92 % to 100 %. However, endoscopic studies have demonstrated the risk of membrane perforation while performing transalveolar sinus floor elevation. Moreover, the Summers technique can cause some complications as headache and paroxysmal positional vertigo. Additionally, the activity of osteotomes during the application of malleting pressure is difficult to control, resulting in unwanted instrument and/or graft penetration into the sinus cavity, potentially causing membrane penetration.
However, Huwais invented a new technology termed osseodensification for enhancing implant primary stability in 2015. This technology is performed with the use of specially developed drill bits (Densah burs) that combine the benefits of osteotomes with tactile control during the expansion. They have four or more lands with a negative rake angle, which prevents the bur's edges from cutting the bone and so compacts it smoothly. These drills have a tapered shank and a cutting chisel edge. They can thus go deeper into the osteotomy site, while the drill's gradually increasing diameter aids in the site's gradual enlargement. Drills are utilized to enter into the bone in a clockwise rotation (Cutting mode) until the appropriate depth of the osteotomy is reached. Afterwards, counterclockwise rotations (Densifying mode) generate a robust and dense layer of bone tissue along the osteotomy's walls and base. Through controlled deformation, this procedure burnishes bone along the inner layer of the osteotomy site. The goal is to construct a condensed layer of autografted bone along the implant's periphery and apex. This would improve the bone-implant contact, hence increasing insertion torque values and, as a result, implant primary stability.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Cairo, Egypt, 002
- Cairo University
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Contact:
- Ahmed Rozeik, Master
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Cairo, Egypt, 002
- Faculty of dentistry
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Contact:
- Omar Ashour, PhD
- Phone Number: 01115537575
- Email: a.saeed8979@gmail.com
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Principal Investigator:
- Ahmed Rozeik, Master
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
● Patients having one missing upper posterior tooth with residual bone height beneath maxillary sinus from 5-8 mm.
- A minimum of 6 mm residual bone width at site of implant placement.
- The recipient site of the implant should be free from any pathological conditions.
- No diagnosed bone disease or medication known to affect bone metabolism.
- Patients who are cooperative, motivated and hygiene conscious.
- Patients having adequate inter-occlusal space of 8-10 mm
Exclusion Criteria:
● Systemic conditions/diseases that contraindicate surgery.
- Radiation therapy in the head and neck region or chemotherapy during the 12 months prior to surgery.
- Patients who have any habits that might jeopardize the osseointegration process, such as current smokers.
- Patients with parafunctional habits that produce overload on implant, such as bruxism and clenching.
- Patients that have any pathology in the maxillary sinuses.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Densah bur
According to the protocol for densah burs.
The direction was reversed and the cutting speed was raised to 1200 rpm after the initial perforation close to the sinus floor.
After that, two densifying burs were used in succession to elevate the sinus membrane by 2 mm and prepare the implant hole to the desired implant size.
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Surgical treatment
Other Names:
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Active Comparator: Ostetome
Flat end osteotome of appropriate size will be introduced through the osteotomy to infracture the floor of the sinus by light malleting.
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Surgical treatment
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Bone gain height
Time Frame: 6 months
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It will be measured using Cone beam computed tomography (CBCT) in mm
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6 months
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2022
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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