This study evaluates the radiographic, histological and clinical comparisons of the completely autologous T-PRF or allograft effectiveness at the maxillary sinus elevation procedure.
Participants randomly divided into 2 groups and the test group had a Schneiderian membrane elevation with using balloon lifting technique and after that sinus was filled with T-PRF produced from the patients' blood and 4 months waiting period has been entered. At the end of the 4th month, the bone samples were received from the implant slots and sent to histological evaluation. After 3 months, implant stability was measured and recorded. In the control group, the same procedures were followed and sinus was filled with only allograft. Waiting period was changed to 6 months for this group.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
18
Blood samples were collected from the each participant's arm in the test group by 20 ml syringe and then was transferred into 10ml grade IV titanium tube without anticoagulant. After centrifugation of blood samples (2800 rpm, 12 minutes) at room temperature, the T-PRF clot was removed from the tubes with sterile tweezers. 6 blood tubes were collected for a sinus floor elevation/lifting operation and 6 T-PRFs were prepared for each participant.
After careful elevation of the schneiderian membrane without perforation, allograft was only used for augmentation of the sinus floor in the control group.
Histological Examination
Percentage (%) of new and old trabeculae formation post surgery
Time frame: At the first 4 and 6th months post surgery for the test and control groups, respectively.
Radiological Examination
Density (hu) measurements
Time frame: Within the first 4 and 6 months
Implant stability measurements
Implant Stability Quotient values (50-80 ISQ)
Time frame: Within the 3 months after implant surgery
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