Biphasic Material With PRF in Lateral Sinus Floor Augmentation

Study Overview
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Brief Summary
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A lack of bone in the posterior maxilla, mainly resulting from the combination of alveolar bone resorption after tooth loss, pneumatization of the maxillary sinus, and periodontal disease, leads to increased difficulty during dental implant treatment. The classic technique for maxillary sinus floor augmentation entails the preparation of the trap door to elevate the schneiderian membrane in the lateral sinus wall. it can be done either in a single stage with simultaneous implant placement or in two stages with delayed implant placement, depending on the available residual alveolar ridge height that necessary for implant primary stability. The new compartment created between the floor of maxillary sinus and the elevated membrane was filled with either autogenous, allografts, xenograft or combination of them to maintain space for new bone formation. The disadvantages of such methods are high costs for grafting material, time consuming and high morbidity, because harvesting of bone grafts is needed.

Detailed Description
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Recently, a systematic review demonstrated the effectiveness of synthetic bone materials, including biphasic calcium phosphate (BCP), as substitutes for autogenous bone. BCP consists of hydroxyapatite (HA) and β-tricalcium phosphate (β-TCP). In contrast with stable HA, β-TCP is highly resorptive and is replaced by newly formed bone; therefore, the resorption rate of BCP could be influenced by the ratio of HA and β-TCP. platelet-rich fibrin (PRF) was recently introduced as additional or replacement materials in bone augmentation procedures. The use of biologic mediators with osteoinductive properties has been considered to reduce the time interval and accelerate the formation of new bone. The strengths of PRF in reducing tissue inflammation, promoting the vascularization of bone tissue, accelerating new bone formation, and improving scaffold mechanics have been reported.

Official Title
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The Lateral Approach Maxillary Sinus Floor Augmentation Using Biphasic Material Combined With Injectable Platelet Rich Fibrin- Randomized Clinical Trial

Conditions
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Maxillary Sinus Disease

Intervention / Treatment
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* Procedure: Lateral sinus floor augmentation
* Drug: Biphasic Calcium Phosphate
* Procedure: Injectable platlets rich fibrin


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Residual bone crest height < 5 mm and width≥6 mm in the planned implant site. Healed bone crest (at least 6 months elapsed from tooth loss/extraction); Exclusion Criteria: Absolute medical contraindications to implant surgery such as uncontrolled diabetes mellitus, blood platelet disorders, serious osseous disorders, and cardiac arrhythmia; history of bone grafting in the posterior maxilla, immunocompromised patients, taking corticosteroids, taking aspirin before the procedure, positive history of chemotherapy and radiotherapy, and maxillary sinus pathologies

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Group I, patients undergo sinus lifting using bone substitute BCP alone. -Group II, patients who undergo sinus lifting using BCP with I-PRF.
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Group 1 BCP alone<br>Lateral bone augmentation with biphasic calcium phosphate BCP bone substitute application | Procedure: Lateral sinus floor augmentation<br>* maxillary sinus floor augmentation by lateral approach<br>Drug: Biphasic Calcium Phosphate<br>* appliaction of BCP bone substitute<br>|
| Active Comparator: Group 2 BCP with I-PRF<br>Lateral bone augmentation with biphasic calcium phosphate BCP bone substitute application with addition of injectable platlet rich fibrin I-PRF | Procedure: Lateral sinus floor augmentation<br>* maxillary sinus floor augmentation by lateral approach<br>Drug: Biphasic Calcium Phosphate<br>* appliaction of BCP bone substitute<br>Procedure: Injectable platlets rich fibrin<br>* centrifuge 10 ml of patient blood to get I-PRF that applied to the bone substitute<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Vertical bone gain BG | Vertical bone gain (BG) 6 months after sinus augmentation in both height and density aspects by cone beam CT | 6 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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PRF, sinus floor augmentation, biphasic calcium phosphate