Maxillary Sinus
Conditions
Keywords
Maxillar sinus, Titanium-Prepared Platelet Rich Fibrin, Allograft, implant
Brief summary
This study evaluates the radiographic, histological and clinical comparisons of the completely autologous T-PRF or allograft effectiveness at the maxillary sinus elevation procedure.
Detailed description
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.
Interventions
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.
Sponsors
Study design
Eligibility
Inclusion criteria
* Participants having been diagnosed to display a residual crest height of less than 5mm in posterior maxilla and non-smokers were included.
Exclusion criteria
* Participants with blood platelet disorders, infectious and metabolic diseases, ongoing chemotherapy or radiotherapy, history of chronic sinusitis associated with maxillary sinuses, taking any antibiotics and/or anti-inflammatory drugs were excluded.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Histological Examination | At the first 4 and 6th months post surgery for the test and control groups, respectively. | Percentage (%) of new and old trabeculae formation post surgery |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Radiological Examination | Within the first 4 and 6 months | Density (hu) measurements |
| Implant stability measurements | Within the 3 months after implant surgery | Implant Stability Quotient values (50-80 ISQ) |