RT Journal Article
T1 Effect of platelet-rich plasma on sinus lifting: a randomized-controlled clinical trial
A1 Torres García-Denche, Jesús
A1 Tamimi, Faleh
A1 Martinez, Pedro Pablo
A1 Alkhraisat, Mohammad Hamdan
A1 Linares, Rafael
A1 Hernández, Gonzalo
A1 Torres Macho, Juan
A1 López Cabarcos, Enrique
AB Objective: The combination of anorganic bovine bone (ABB) with platelet-rich plasma (PRP)has been widely used in bone regeneration procedures although benefits are still unclear. The purpose of this study was to evaluate whether or not PRP improves the efficacy of ABB in sinus floor augmentation. In addition, we have investigated the effect of residual bone height and tobacco on implant survival in sinus augmentation procedures.Patient and methods: Eighty-seven patients recruited for this study under went 144 sinus floor augmentation procedures using ABB alone or ABB plus PRP (ABB +PRP) in a randomized clinical trial. A total  of 286 implants were placed in the augmented bone, and their evolution was followed up for a period of 24 months. In order to investigate on a histological level and any adjunctive effects, we performed an ancillary study in five edentulous patients with a symmetrical severely resorbed maxilla. In these patients, a bilateral sinus augmentation was randomly performed using ABB or ABB+PRP in a splt-mouth design,and after 6 months, bone biopsies were taken from the implant sites for histological and histomorphometric analysis.Results: Overall, 96.2% of ABB and 98.6% of ABB+PRP implant sucess were obtained during the monitoring period and differences were not found between sites grafted with and without PRP in the 87 patients studied. Densitometry assessments and graft resorption were similar in both  experimental groups. However, the histological and histomorphometrical analysis in the five edentulous patients revealed that bone augmentation was significantly higher in sites treated with ABB+PRP (p< o igual que 0.05). Another outcome from our study is that the lack of initial bone support (p< o igual que 0.05) and smoking (p=0.05) appeared to have a negative effect on the treatment success, which was accentuated when both circumstances coincided.Conclusions: PRP is not a determined factor for implant survival in sinus lifting procedures. However, this study revealed that PRP can improve the osteoconductive properties of ABB by increasing the volume of new bone formed. Moreover, in sinus augmentation procedures the implant's survival rate appears to be more influenced by the residual bone height or by tobacco than by the type of bone graft.
PB Wiley-Blackwell
SN 1600-051x
YR 2009
FD 2009
LK https://hdl.handle.net/20.500.14352/51364
UL https://hdl.handle.net/20.500.14352/51364
LA eng
NO Ministry of Science and Technology
NO Spanish Agency of International Cooperation
DS Docta Complutense
RD 29 abr 2024