Transcrestal Sinus Lift Using Platelet Concentrates in Association to Short Implant Placement: A Retrospective Study of Augmented Bone Height Remodeling.
BACKGROUND
No evidence has been reported yet about dimensional changes in maxillary sinuses grafted with autologous platelet concentrate.


OBJECTIVE
This study aimed to analyze the augmented height alterations around short implants (length ≤ 8.5 mm) placed after transcrestal sinus lift surgery in association with plasma rich in growth factors.


METHODS
A retrospective design was used. Patients with atrophic posterior maxilla were treated by inserting short implants in combination with transalveolar maxillary sinus floor augmentation. Radiographic bone level alterations over time were assessed on panoramic radiographs.


RESULTS
Transalveolar sinus augmentation was performed to place 41 implants in 26 patients with a residual bone height of 4.7 ± 1.3 mm. The alveolar bone height was increased by 3.7 ± 1.7 mm and 4.2 ± 2.0 mm after 12 ± 3 months and 35 ± 11 months of surgery, respectively, whereas the apical augmented height (beyond the implant) apex was stable around 34 implants during the follow-up. It was increasing around seven implants that were not covered by the endo-sinus augmented height at the 1-year follow-up.


CONCLUSIONS
Transalveolar sinus floor augmentation in association with plasma rich in growth factors and short implants resulted in a stable augmented height gain after 3 years follow-up. Atrophic posterior maxilla could be treated by transalveolar sinus lift in association with plasma rich in growth factors and the placement of short implants.
Private practice in oral implantology, Vitoria, Spain. eduardoanitua@eduardoanitua.com.|BTI Biotechnology Institute, Vitoria, Spain. eduardoanitua@eduardoanitua.com.
Eduardo
E
Anitua
Private practice in oral implantology, Vitoria, Spain.
Javier
J
Flores
BTI Biotechnology Institute, Vitoria, Spain.
Mohammad Hamdan
MH
Alkhraisat
D000540:Alveolar Ridge Augmentation / Q000379:methods*; D001792:Blood Platelets; D003758:Dental Implantation, Endosseous / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D059546:Sinus Floor Augmentation / Q000379:methods*
PRGF; atrophic maxilla; bone augmentation; short implants; sinus lift; transalveolar