Clinical Trial Details
— Status: Not yet recruiting
Administrative data
NCT number |
NCT06071416 |
Other study ID # |
PRF in sinus augmentation |
Secondary ID |
|
Status |
Not yet recruiting |
Phase |
Phase 1
|
First received |
|
Last updated |
|
Start date |
February 15, 2024 |
Est. completion date |
April 2024 |
Study information
Verified date |
January 2024 |
Source |
Assiut University |
Contact |
Alzahraa Alghriany, Lecturer |
Phone |
+201203770058 |
Email |
alghriany[@]aun.edu.eg |
Is FDA regulated |
No |
Health authority |
|
Study type |
Interventional
|
Clinical Trial Summary
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.
Description:
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.