Salma Abd El Fattah Abbass, Marwa Ezzat Sabet And Yasmine Galal Eldin Thabet,

ABSTRACT


Aim: The Aim Of The Study Is To Compare Between The Effect Of Plasma Rich In Growth Factors (PRGF) And Leukocyte And Platete Rich In Fibin (L- PRF) Mixed With Bone Graft On The Primary Stability Of Implants Placed With Trans-alveolar Sinus Lifting In The Posterior Edentulous Maxilla. Materials And Method: Fourteen Partially Edentulous Patients With Maxillary Kennedy Class II Mod. 1 Were Selected And Divided Into Two Groups. Closed Sinus Lifting Technique And Implant Placement Were Done For All Patients In Both Groups. In Group A Bone Graft Was Mixed With PRGF While In Group B It Was Mixed With L-PRF. Primary Implant Stability Was Measured Using Resonance Frequency Analysis By Osstell At Insertion, After 4 Weeks And After 12 Weeks.

Results: Group B Showed Lower Decrease In Stability After 4 Weeks While From 4 To 12 Weeks Showed Higher Increase In Implant Stability Than Group A. Regarding The Difference Between Both Groups Throughout The Studied Period, Group A Showed Greater Decrease In Implant Stability Than Group B And It Was Statistically Significant. Conclusion: Using L-PRF During Transalveolar Sinus Augmentation Achieved Better Implant Stability Than PRGF.